Lexus LX Repair Manual

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1.HANDLING PRECAUTIONS ON STEERING SYSTEM

Care must be taken when replacing parts. Incorrect replacement may affect the performance of the steering system and result in driving

hazards.

2.HANDLING PRECAUTIONS ON SRS AIRBAG SYSTEM

The vehicle is equipped with an SRS (Supplemental Restraint System) such as the driver airbag and front passenger airbag. Failure to carry

out service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing. This may cause a serious

accident. Before servicing (including inspection, replacement, removal and installation of parts), be sure to read the precautionary notices for

the supplemental restraint system

POWER STEERING SYSTEM > PRECAUTION

(Click

here).

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Summary of Contents for Lexus LX

Page 1 POWER STEERING SYSTEM > PRECAUTION for Preparation Click here 1.HANDLING PRECAUTIONS ON STEERING SYSTEM Care must be taken when replacing parts. Incorrect replacement may affect the performance of the steering system and result in driving hazards. 2.HANDLING PRECAUTIONS ON SRS AIRBAG SYSTEM The vehicle is equipped with an SRS (Supplemental Restraint System) such as the driver airbag and front passenger airbag.
Page 2 POWER STEERING SYSTEM > SYSTEM DESCRIPTION for Preparation Click here...
Page 4 POWER STEERING SYSTEM > PROBLEM SYMPTOMS TABLE for Preparation Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Page 6 POWER STEERING SYSTEM > ON-VEHICLE INSPECTION for Preparation Click here 1. INSPECT DRIVE BELT Visually check the belt for excessive wear, frayed cords, etc. If any defect is found, replace the drive belt. HINT: Cracks on the rib side of a belt are considered acceptable. Replace the belt if there are any missing ribs.
Page 7 If the system has to be bled twice because of foaming or emulsification, check for fluid leaks in the system. Check the fluid level. 3. CHECK FLUID LEVEL Keep the vehicle horizontal. With the engine stopped, check the fluid level in the reservoir. If necessary, add fluid.
Page 8 Connect SST as shown in the illustration. 09640-10010 (09641-01010, 09641-01030, 09641-01060) NOTICE: Make sure that the valve of SST is in the open position. Bleed the power steering system. Start the engine and idle it. Turn the steering wheel from lock to lock several times to raise the fluid temperature. Fluid temperature: 80°C (176°F) With the engine idling, close the valve of SST and observe the reading on SST.
Page 9 With the engine idling and the valve fully open, turn the steering wheel left or right to the full lock position. Observe the reading on SST. Standard fluid pressure: 10000 to 10700 kPa (102 to 109 kgf/cm , 1450 to 1552 psi) NOTICE: Do not keep the steering wheel in the full lock position for more than 10 seconds.
Page 10 VANE PUMP > COMPONENTS for Preparation Click here 1 / 2...
Page 11 2 / 2...
Page 13 VANE PUMP > REMOVAL for Preparation Click here 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. NOTICE: w/ Navigation System: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings.
Page 14 Disconnect the vacuum hose and No. 2 ventilation hose. Loosen the 2 hose clamps. Remove the air cleaner hose. 6. REMOVE AIR CLEANER ASSEMBLY Remove the 3 bolts and air cleaner. 7. REMOVE FAN & GENERATOR V BELT While turning the belt tensioner counterclockwise, align the service hole for the belt tensioner and the belt tensioner fixing position, and then insert a bar of φ5 mm (0.197 in.) into the service hole to fix the belt tensioner in place.
Page 15 Slide the clip and disconnect the suction hose from the vane pump. 10. DISCONNECT POWER STEERING OIL PRESSURE SENSOR CONNECTOR Detach the wire harness clamp and disconnect the connector. 11. DISCONNECT PRESSURE FEED TUBE Remove the bolt and disconnect the pressure feed tube. Remove the gasket.
Page 17 VANE PUMP > DISASSEMBLY for Preparation Click here 1. FIX VANE PUMP ASSEMBLY Using SST, fix the vane pump in a vise. 09630-00014 (09631-00132) 2. REMOVE POWER STEERING SUCTION PORT UNION Remove the bolt and suction port union from the vane pump. Using a screwdriver, remove the O-ring from the suction port union.
Page 18 Using a screwdriver, remove the O-ring from the rear housing. HINT: Tape the screwdriver tip before use. 5. REMOVE VANE PUMP SHAFT WITH VANE PUMP PULLEY Using 2 screwdrivers, remove the snap ring from the vane pump shaft. Remove the vane pump shaft with vane pump pulley. NOTICE: Be careful not to drop or damage the vane pump shaft with vane pump pulley.
Page 19 8. REMOVE VANE PUMP FRONT SIDE PLATE Remove the front side plate from the front housing. Using a screwdriver, remove the O-ring from the front side plate. HINT: Tape the screwdriver tip before use. Remove the O-ring from the front housing. 9.
Page 21 VANE PUMP > INSPECTION for Preparation Click here 1. INSPECT VANE PUMP SHAFT AND BUSH IN VANE PUMP FRONT HOUSING Using a micrometer, measure the outer diameter [a] of the vane pump shaft. Using a vernier caliper, measure the inner diameter [b] of the vane pump front housing bush.
Page 22 Check the flow control valve for leakage. Close one of the holes and apply 392 to 490 kPa (4.0 to 5.0 kgf/cm , 57 to 71 psi) of compressed air into the opposite side hole, and confirm that air does not come out from the end hole. If air leaks, replace the vane pump assembly.
Page 23 0.3 N*m (3 kgf*cm, 2 in.*lbf) or less If the rotating torque is not as specified, check the vane pump housing oil seal.
Page 24 VANE PUMP > REASSEMBLY for Preparation Click here NOTICE: When installing parts, coat the parts indicated by arrows with power steering fluid ( Click here). 1. INSTALL VANE PUMP HOUSING OIL SEAL Coat the lip of a new oil seal with power steering fluid. Using SST and a press, press in the oil seal.
Page 25 Align the notch of the front side plate with the notch of the front housing, and install the front side plate. NOTICE: Make sure that the front side plate is installed facing in the correct direction. 4. INSTALL VANE PUMP CAM RING Align the notch of the cam ring with the notch of the front side plate, and install the cam ring with the inscribed mark facing upward.
Page 26 Install the vane pump rotor. HINT: The vane pump rotor can be installed in both directions. Coat the 10 vane pump plates with power steering fluid. Install the vane pump plates with the round end facing outward. NOTICE: Make sure that the vane pump plates are installed facing in the correct direction.
Page 27 Align the straight pin of the rear housing with the notches of the cam ring, front side plate and front housing. NOTICE: Make sure that the O-ring is not protruding anywhere when installing the vane pump rear housing. Install the rear housing with the 4 bolts. Torque: 22 N*m{ 224 kgf*cm , 16 ft.*lbf } 8.
Page 28 NOTICE: Do not mistake the direction of the control valve. Coat a new O-ring with power steering fluid and install it onto the pressure port union. Install the pressure port union to the front housing. Torque: 69 N*m{ 704 kgf*cm , 51 ft.*lbf } 10.
Page 30 VANE PUMP > INSTALLATION for Preparation Click here 1. INSTALL VANE PUMP ASSEMBLY Install the vane pump with the 2 bolts. Torque: 21 N*m{ 214 kgf*cm , 15 ft.*lbf } 2. CONNECT PRESSURE FEED TUBE Install a new gasket to the pressure feed tube. Connect the pressure feed tube with the union bolt.
Page 31 5. INSTALL FAN & GENERATOR V BELT Set the V belt onto every part. While turning the belt tensioner counterclockwise, remove the bar. NOTICE: Make sure that the V belt is properly set to each pulley. After installing the belt, check that it fits properly in the ribbed grooves. HINT: Make sure to check by hand that the belt has not slipped out of the grooves on the bottom of the pulley.
Page 32 7. INSTALL AIR CLEANER HOSE ASSEMBLY Install the air cleaner hose so that the protrusion of the air cleaner cap aligns with the groove of the hose as shown in the illustration. Tighten the 2 clamps. Torque: 5.0 N*m{ 51 kgf*cm , 44 in.*lbf } Connect the vacuum hose.
Page 33 10. INSTALL FRONT WHEEL RH Torque: 131 N*m{ 1336 kgf*cm , 97 ft.*lbf } 11. ADD POWER STEERING FLUID 12. BLEED POWER STEERING FLUID Check the fluid level. Jack up the front of the vehicle and support it with stands. Turn the steering wheel.
Page 34 14. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL...
Page 35 VARIABLE GEAR RATIO STEERING SYSTEM > PRECAUTION for Preparation Click here 1.TROUBLESHOOTING PRECAUTIONS If the problem is caused by a poor connection of a terminal or poor installation of a part, reconnecting the terminal, or removing and reinstalling the part may solve the problem, or may temporarily return the system to normal. To determine the cause of the problem, check for DTCs or confirm the vehicle operating conditions when the problem occurred and note them down before disconnecting connectors or removing parts.
Page 36 iii. The vehicle is exposed to extremely low temperatures. If the ambient temperature becomes approximately -30°C (-22°F), system control will be suspended. NOTICE: If any of the above occur, perform steering angle sensor initialization ( Click here).
Page 37 VARIABLE GEAR RATIO STEERING SYSTEM > PRECAUTION for Preparation Click here 1.TROUBLESHOOTING PRECAUTIONS If the problem is caused by a poor connection of a terminal or poor installation of a part, reconnecting the terminal, or removing and reinstalling the part may solve the problem, or may temporarily return the system to normal. To determine the cause of the problem, check for DTCs or confirm the vehicle operating conditions when the problem occurred and note them down before disconnecting connectors or removing parts.
Page 38 iii. The vehicle is exposed to extremely low temperatures. If the ambient temperature becomes approximately -30°C (-22°F), system control will be suspended. NOTICE: If any of the above occur, perform steering angle sensor initialization ( Click here).
Page 39 VARIABLE GEAR RATIO STEERING SYSTEM > PARTS LOCATION for Preparation Click here 1 / 5...
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Page 45 VARIABLE GEAR RATIO STEERING SYSTEM > SYSTEM DIAGRAM for Preparation Click here Receiving ECU Transmitting ECU (Transmitter) Signals Communication Method (Receiver) Steering wheel angle signal Tire angle (during straight- Steering Angle Sensor Steering Control ECU ahead driving) signal Steering wheel angle signal Steering Angle Sensor Steering Control ECU Serial communication...
Page 46 Warning information signal Steering Control ECU Combination Meter...
Page 47 VARIABLE GEAR RATIO STEERING SYSTEM > SYSTEM DESCRIPTION for Preparation Click here GENERAL DESCRIPTION The Variable Gear Ratio Steering (VGRS) system controls the steering angle in accordance with vehicle speed. The system is controlled by the steering control ECU which operates the steering actuator mounted on the steering intermediate shaft. The operating angle of the steering actuator is added to the steering angle of the pinion gear in order to vary the turning angle of the front wheels in accordance with vehicle speed.
Page 49 VARIABLE GEAR RATIO STEERING SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING for Preparation Click here HINT: Use the following procedures to troubleshoot the variable gear ratio steering system. *: Use the intelligent tester. 1.VEHICLE BROUGHT TO WORKSHOP NEXT 2.INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding.
Page 50 SYMPTOM SIMULATION 5.DTC CHART NEXT 6.CIRCUIT INSPECTION NEXT 7.REPAIR NEXT 8.CONFIRMATION TEST NEXT 9.PROBLEM SYMPTOMS TABLE NEXT 10.CIRCUIT INSPECTION NEXT 11.CONFIRMATION TEST NEXT...
Page 52 VARIABLE GEAR RATIO STEERING SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING for Preparation Click here HINT: Use the following procedures to troubleshoot the variable gear ratio steering system. *: Use the intelligent tester. 1.VEHICLE BROUGHT TO WORKSHOP NEXT 2.INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding.
Page 53 SYMPTOM SIMULATION 5.DTC CHART NEXT 6.CIRCUIT INSPECTION NEXT 7.REPAIR NEXT 8.CONFIRMATION TEST NEXT 9.PROBLEM SYMPTOMS TABLE NEXT 10.CIRCUIT INSPECTION NEXT 11.CONFIRMATION TEST NEXT...
Page 55 VARIABLE GEAR RATIO STEERING SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING for Preparation Click here HINT: Use the following procedures to troubleshoot the variable gear ratio steering system. *: Use the intelligent tester. 1.VEHICLE BROUGHT TO WORKSHOP NEXT 2.INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding.
Page 56 SYMPTOM SIMULATION 5.DTC CHART NEXT 6.CIRCUIT INSPECTION NEXT 7.REPAIR NEXT 8.CONFIRMATION TEST NEXT 9.PROBLEM SYMPTOMS TABLE NEXT 10.CIRCUIT INSPECTION NEXT 11.CONFIRMATION TEST NEXT...
Page 58 VARIABLE GEAR RATIO STEERING SYSTEM > INITIALIZATION for Preparation Click here STEERING ANGLE SENSOR INITIALIZATION (to obtain a tire angle (during straight-ahead driving) signal) Turn the engine switch on (IG), and check that the master warning light illuminates for a few seconds. NOTICE: If the warning light remains on, repair the applicable system.
Page 60 VARIABLE GEAR RATIO STEERING SYSTEM > CALIBRATION for Preparation Click here NOTICE: Use this procedure to center the steering wheel if: The steering actuator assembly has been replaced. The steering control ECU has been replaced. The steering column or steering intermediate shaft has been disconnected. The steering wheel is still off-center after completing the steering angle sensor initialization.
Page 61 HINT: If the master warning light comes on, DTC C1591/51 is stored. Disconnect SST from the DLC3. Turn the engine switch off. NEXT 4.FACE TIRES STRAIGHT AHEAD Confirm that the steering wheel is centered when facing the tires straight ahead. NOTICE: Drive the vehicle to confirm that the steering wheel is centered.
Page 62 here). NEXT 7.LOCK STEERING ACTUATOR Disconnect the positive (+) and negative (-) 12 V battery jumper wires from the steering actuator. Connect the E85 connector to the steering actuator. Connect the cable to the negative (-) battery terminal. Turn the steering wheel approximately 3° to the left and right. Confirm that the reaction force can be felt. NOTICE: If the above procedures are not followed correctly, a DTC will be stored.
Page 63 10.CHECK STEERING WHEEL OPERATION Start the engine. Perform the steering angle sensor initialization ( Click here). Turn the steering wheel from lock to lock and check that it rotates approximately 2.7 turns. Drive the vehicle and confirm that the steering wheel is centered. NEXT VGRS SYSTEM CALIBRATION PROCEDURE (WHEN USING INTELLIGENT TESTER) 1.FACE TIRES STRAIGHT AHEAD...
Page 64 NOTICE: Do not touch the steering wheel during these procedures. "Steering Angle Adjust is complete." is displayed. Then, check that the VGRS system calibration is completed normally. Select "Exit" to return the display to the "MENU" screen. NEXT 3.CHECK MASTER WARNING LIGHT Confirm that the master warning light is off.
Page 66 VARIABLE GEAR RATIO STEERING SYSTEM > CALIBRATION for Preparation Click here NOTICE: Use this procedure to center the steering wheel if: The steering actuator assembly has been replaced. The steering control ECU has been replaced. The steering column or steering intermediate shaft has been disconnected. The steering wheel is still off-center after completing the steering angle sensor initialization.
Page 67 HINT: If the master warning light comes on, DTC C1591/51 is stored. Disconnect SST from the DLC3. Turn the engine switch off. NEXT 4.FACE TIRES STRAIGHT AHEAD Confirm that the steering wheel is centered when facing the tires straight ahead. NOTICE: Drive the vehicle to confirm that the steering wheel is centered.
Page 68 here). NEXT 7.LOCK STEERING ACTUATOR Disconnect the positive (+) and negative (-) 12 V battery jumper wires from the steering actuator. Connect the E85 connector to the steering actuator. Connect the cable to the negative (-) battery terminal. Turn the steering wheel approximately 3° to the left and right. Confirm that the reaction force can be felt. NOTICE: If the above procedures are not followed correctly, a DTC will be stored.
Page 69 10.CHECK STEERING WHEEL OPERATION Start the engine. Perform the steering angle sensor initialization ( Click here). Turn the steering wheel from lock to lock and check that it rotates approximately 2.7 turns. Drive the vehicle and confirm that the steering wheel is centered. NEXT VGRS SYSTEM CALIBRATION PROCEDURE (WHEN USING INTELLIGENT TESTER) 1.FACE TIRES STRAIGHT AHEAD...
Page 70 NOTICE: Do not touch the steering wheel during these procedures. "Steering Angle Adjust is complete." is displayed. Then, check that the VGRS system calibration is completed normally. Select "Exit" to return the display to the "MENU" screen. NEXT 3.CHECK MASTER WARNING LIGHT Confirm that the master warning light is off.
Page 72 VARIABLE GEAR RATIO STEERING SYSTEM > TEST MODE PROCEDURE for Preparation Click here TEST MODE (VGRS SENSOR SIGNAL CHECK) HINT: When the system enters test mode, "VGRS Test Mode" is displayed on the multi-information display. Before entering test mode, check and repair any malfunctions indicated by the present DTCs of the VGRS system.
Page 73 Clear the test mode DTCs (using SST check wire). Turn the engine switch off. Disconnect SST from the DLC3. 09843-18040 iii. Turn the engine switch on (IG). HINT: If the engine switch is turned on (IG) with terminals 12 (TS) and 4 (CG) connected, the system remains in test mode.
Page 74 VARIABLE GEAR RATIO STEERING SYSTEM > PROBLEM SYMPTOMS TABLE for Preparation Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Page 76 VARIABLE GEAR RATIO STEERING SYSTEM > PROBLEM SYMPTOMS TABLE for Preparation Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Page 78 VARIABLE GEAR RATIO STEERING SYSTEM > TERMINALS OF ECU for Preparation Click here CHECK STEERING CONTROL ECU HINT: Inspect the connectors from the back side while they are connected. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition Power supply (ECU-IG No. E82-3 (IG) - E82-7 (PGND) G - W-B Engine switch on (IG)
Page 79 E84-19 (SS1+) - E82-7 Steering angle sensor signal Engine running and steering L - W-B 3 to 4 V (PGND) wheel turned...
Page 80 VARIABLE GEAR RATIO STEERING SYSTEM > DIAGNOSIS SYSTEM for Preparation Click here FUNCTION OF WARNING LIGHT AND MESSAGE If a malfunction occurs during system operation, the master warning light on the combination meter comes on and "Check VGRS System" will be displayed on the multi-information display to inform the driver of the system malfunction.
Page 82 VARIABLE GEAR RATIO STEERING SYSTEM > DTC CHECK / CLEAR for Preparation Click here CHECK DTC (Using Tester) Connect the intelligent tester to the DLC3. Turn the engine switch on (IG). Turn the tester on. Enter the following menus: Chassis / VGRS / DTC. Read the DTCs.
Page 83 CLEAR DTC (Using SST Check Wire) Turn the engine switch on (IG). Using SST check wire, connect and disconnect terminals 13 (TC) and 4 (CG) of the DLC3 4 times within 8 seconds. 09843-18040 Disconnect SST check wire from the DLC3. NOTICE: As the stored yaw rate and G sensor value will be cleared by the above operation, it is necessary to obtain the yaw rate and G sensor zero point.
Page 84 VARIABLE GEAR RATIO STEERING SYSTEM > DTC CHECK / CLEAR for Preparation Click here CHECK DTC (Using Tester) Connect the intelligent tester to the DLC3. Turn the engine switch on (IG). Turn the tester on. Enter the following menus: Chassis / VGRS / DTC. Read the DTCs.
Page 85 CLEAR DTC (Using SST Check Wire) Turn the engine switch on (IG). Using SST check wire, connect and disconnect terminals 13 (TC) and 4 (CG) of the DLC3 4 times within 8 seconds. 09843-18040 Disconnect SST check wire from the DLC3. NOTICE: As the stored yaw rate and G sensor value will be cleared by the above operation, it is necessary to obtain the yaw rate and G sensor zero point.
Page 86 VARIABLE GEAR RATIO STEERING SYSTEM > FREEZE FRAME DATA for Preparation Click here HINT: The VGRS system stores data when a trouble code is stored which can be viewed using the intelligent tester. FREEZE FRAME DATA OF STEERING CONTROL ECU Connect the intelligent tester to the DLC3.
Page 87 Mode state/ Mode State 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 0A, 0B, 0C, 0D, 0E, 0F or 10...
Page 88 VARIABLE GEAR RATIO STEERING SYSTEM > DATA LIST / ACTIVE TEST for Preparation Click here HINT: Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts.
Page 89 Steering angle sensor zero Straight Straight steering angle valid flag/ point calibrated: Valid Angle Valid Valid or Invalid Steering angle sensor zero Flag*1 point not calibrated: Invalid Actuator Actuator estimated temperature/ Estimate Min.: -50°C (-58°F), Max.: 205°C (419°F) Temp Motor Record of continuous overheat preventive Overheat control/...
Page 90 Velocity Min.: -2047 deg./s, Max.: 2048.94 deg./s Steering wheel turned to left: Display value changes in positive direction Actuator Actuator target angle 1/ Steering wheel turned: -2047 Target Min.: -2047 deg., Max.: 2048.94 deg. to 2048.94 deg. Angle 1 Actuator Actuator target angle 2/ Steering wheel turned: -2047 Target...
Page 92 VARIABLE GEAR RATIO STEERING SYSTEM > DIAGNOSTIC TROUBLE CODE CHART for Preparation Click here HINT: If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below. Variable Gear Ratio Steering System Detection Item Trouble Area...
Page 93 - Steering angle sensor Click C15C4/68 Steering Angle Signal (Test Mode DTC) - Steering control ECU here - Harness or connector - Harness or connector Motor Revolution Angle Signal (Test Mode Click C15C5/69 - Steering actuator DTC) here - Steering control ECU - Harness or connector Click C15C6/77 IG Power Supply Voltage Malfunction...
Page 94 VARIABLE GEAR RATIO STEERING SYSTEM > DIAGNOSTIC TROUBLE CODE CHART for Preparation Click here HINT: If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below. Variable Gear Ratio Steering System Detection Item Trouble Area...
Page 95 - Steering angle sensor Click C15C4/68 Steering Angle Signal (Test Mode DTC) - Steering control ECU here - Harness or connector - Harness or connector Motor Revolution Angle Signal (Test Mode Click C15C5/69 - Steering actuator DTC) here - Steering control ECU - Harness or connector Click C15C6/77 IG Power Supply Voltage Malfunction...
Page 96 VARIABLE GEAR RATIO STEERING SYSTEM > DIAGNOSTIC TROUBLE CODE CHART for Preparation Click here HINT: If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below. Variable Gear Ratio Steering System Detection Item Trouble Area...
Page 97 - Steering angle sensor Click C15C4/68 Steering Angle Signal (Test Mode DTC) - Steering control ECU here - Harness or connector - Harness or connector Motor Revolution Angle Signal (Test Mode Click C15C5/69 - Steering actuator DTC) here - Steering control ECU - Harness or connector Click C15C6/77 IG Power Supply Voltage Malfunction...
Page 98 C1591/51 Actuator Neutral Position Calibration Undone for Preparation Click here DESCRIPTION If the steering control ECU or steering actuator is replaced, or if the tie-rod ends are adjusted, VGRS system calibration is required. If the steering control ECU detects that steering angle adjustment is incomplete, it will store DTC C1591/51. DTC Code DTC Detection Condition Procedure...
Page 100 C15B1/71 ECU Malfunction C15B2/72 ECU Malfunction C15B3/73 ECU Malfunction for Preparation Click here DESCRIPTION If the steering control ECU detects an internal malfunction, it will turn the master warning light on, store these DTCs, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area C15B1/71...
Page 101 C1591/51 Actuator Neutral Position Calibration Undone for Preparation Click here DESCRIPTION If the steering control ECU or steering actuator is replaced, or if the tie-rod ends are adjusted, VGRS system calibration is required. If the steering control ECU detects that steering angle adjustment is incomplete, it will store DTC C1591/51. DTC Code DTC Detection Condition Procedure...
Page 103 C15B1/71 ECU Malfunction C15B2/72 ECU Malfunction C15B3/73 ECU Malfunction for Preparation Click here DESCRIPTION If the steering control ECU detects an internal malfunction, it will turn the master warning light on, store these DTCs, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area C15B1/71...
Page 104 C1592/52 Actuator Neutral Position Calibration Incomplete for Preparation Click here DESCRIPTION The steering control ECU first checks the actuator angle neutral position calibration flag after entering test mode. If the ECU detects that steering actuator angle neutral position calibration is incomplete twice, it will store DTC C1592/52. DTC Code DTC Detection Condition Trouble Area...
Page 106 C15B4/71 ECU Malfunction for Preparation Click here DESCRIPTION If the steering control ECU detects an internal malfunction, it will turn the master warning light on, store DTC C15B4/71, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area C15B4/71 The steering control ECU detects an internal malfunction.
Page 108 C1592/52 Actuator Neutral Position Calibration Incomplete for Preparation Click here DESCRIPTION The steering control ECU first checks the actuator angle neutral position calibration flag after entering test mode. If the ECU detects that steering actuator angle neutral position calibration is incomplete twice, it will store DTC C1592/52. DTC Code DTC Detection Condition Trouble Area...
Page 110 C15B4/71 ECU Malfunction for Preparation Click here DESCRIPTION If the steering control ECU detects an internal malfunction, it will turn the master warning light on, store DTC C15B4/71, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area C15B4/71 The steering control ECU detects an internal malfunction.
Page 112 C1593/53 Actuator Standard Position Malfunction for Preparation Click here DESCRIPTION If the steering control ECU detects a steering actuator standard position error, it will store DTC C1593/53. DTC Code DTC Detection Condition Trouble Area The steering control ECU detects a steering actuator C1593/53 Steering actuator standard position error.
Page 113 C15C1/74 Steering Angle Sensor Malfunction C15C2/74 Steering Angle Sensor B+ Malfunction for Preparation Click here DESCRIPTION The steering control ECU detects a steering angle sensor malfunction by receiving an error signal from the steering angle sensor via CAN communication. If the steering control ECU detects this error signal, it will turn the master warning light on, store these DTCs, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area...
Page 114 GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (Click here) GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (Click here) 2.CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU +B1 TERMINAL VOLTAGE) Measure the voltage according to the value(s) in the table below. Standard Voltage: Specified Tester Connection Condition...
Page 115 Standard Voltage: Specified Tester Connection Switch Condition Condition E11-1 (IG) - Body Engine switch on 11 to 14 V ground (IG) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E11-2 (ESS) - Always Below 1 Ω...
Page 117 C1593/53 Actuator Standard Position Malfunction for Preparation Click here DESCRIPTION If the steering control ECU detects a steering actuator standard position error, it will store DTC C1593/53. DTC Code DTC Detection Condition Trouble Area The steering control ECU detects a steering actuator C1593/53 Steering actuator standard position error.
Page 118 C15C1/74 Steering Angle Sensor Malfunction C15C2/74 Steering Angle Sensor B+ Malfunction for Preparation Click here DESCRIPTION The steering control ECU detects a steering angle sensor malfunction by receiving an error signal from the steering angle sensor via CAN communication. If the steering control ECU detects this error signal, it will turn the master warning light on, store these DTCs, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area...
Page 119 GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (Click here) GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (Click here) 2.CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU +B1 TERMINAL VOLTAGE) Measure the voltage according to the value(s) in the table below. Standard Voltage: Specified Tester Connection Condition...
Page 120 Standard Voltage: Specified Tester Connection Switch Condition Condition E11-1 (IG) - Body Engine switch on 11 to 14 V ground (IG) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E11-2 (ESS) - Always Below 1 Ω...
Page 122 C1595/55 Lost Communication with Steering Angle Sensor Module C15C4/68 Steering Angle Signal (Test Mode DTC) for Preparation Click here DESCRIPTION Signal transmission between the steering control ECU and steering angle sensor is performed via serial communication. If an error occurs between them in serial communication, the ECU will store DTC C1595/55. DTC Code DTC Detection Condition Trouble Area...
Page 123 Check if a steering angle sensor that complies with the vehicle specifications is installed. A steering angle sensor that complies with the vehicle specification is installed. REPLACE STEERING ANGLE SENSOR (Click here) 3.CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU - STEERING ANGLE SENSOR) Disconnect the E84 steering control ECU connector.
Page 124 Standard Voltage: Switch Specified Tester Connection Condition Condition Engine switch E84-19 (SS1+) - E84- on (IG), steering Pulse generation 10 (SS1-) wheel rotated (0 to 5 V) slowly HINT: The output voltage should fluctuate up and down similarly to the diagram when the wheel is turned slowly.
Page 125 C15C1/74 Steering Angle Sensor Malfunction C15C2/74 Steering Angle Sensor B+ Malfunction for Preparation Click here DESCRIPTION The steering control ECU detects a steering angle sensor malfunction by receiving an error signal from the steering angle sensor via CAN communication. If the steering control ECU detects this error signal, it will turn the master warning light on, store these DTCs, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area...
Page 126 GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (Click here) GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (Click here) 2.CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU +B1 TERMINAL VOLTAGE) Measure the voltage according to the value(s) in the table below. Standard Voltage: Specified Tester Connection Condition...
Page 127 Standard Voltage: Specified Tester Connection Switch Condition Condition E11-1 (IG) - Body Engine switch on 11 to 14 V ground (IG) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E11-2 (ESS) - Always Below 1 Ω...
Page 129 C1595/55 Lost Communication with Steering Angle Sensor Module C15C4/68 Steering Angle Signal (Test Mode DTC) for Preparation Click here DESCRIPTION Signal transmission between the steering control ECU and steering angle sensor is performed via serial communication. If an error occurs between them in serial communication, the ECU will store DTC C1595/55. DTC Code DTC Detection Condition Trouble Area...
Page 130 Check if a steering angle sensor that complies with the vehicle specifications is installed. A steering angle sensor that complies with the vehicle specification is installed. REPLACE STEERING ANGLE SENSOR (Click here) 3.CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU - STEERING ANGLE SENSOR) Disconnect the E84 steering control ECU connector.
Page 131 Standard Voltage: Switch Specified Tester Connection Condition Condition Engine switch E84-19 (SS1+) - E84- on (IG), steering Pulse generation 10 (SS1-) wheel rotated (0 to 5 V) slowly HINT: The output voltage should fluctuate up and down similarly to the diagram when the wheel is turned slowly.
Page 132 C15C1/74 Steering Angle Sensor Malfunction C15C2/74 Steering Angle Sensor B+ Malfunction for Preparation Click here DESCRIPTION The steering control ECU detects a steering angle sensor malfunction by receiving an error signal from the steering angle sensor via CAN communication. If the steering control ECU detects this error signal, it will turn the master warning light on, store these DTCs, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area...
Page 133 GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (Click here) GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (Click here) 2.CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU +B1 TERMINAL VOLTAGE) Measure the voltage according to the value(s) in the table below. Standard Voltage: Specified Tester Connection Condition...
Page 134 Standard Voltage: Specified Tester Connection Switch Condition Condition E11-1 (IG) - Body Engine switch on 11 to 14 V ground (IG) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E11-2 (ESS) - Always Below 1 Ω...
Page 136 C1595/55 Lost Communication with Steering Angle Sensor Module C15C4/68 Steering Angle Signal (Test Mode DTC) for Preparation Click here DESCRIPTION Signal transmission between the steering control ECU and steering angle sensor is performed via serial communication. If an error occurs between them in serial communication, the ECU will store DTC C1595/55. DTC Code DTC Detection Condition Trouble Area...
Page 137 Check if a steering angle sensor that complies with the vehicle specifications is installed. A steering angle sensor that complies with the vehicle specification is installed. REPLACE STEERING ANGLE SENSOR (Click here) 3.CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU - STEERING ANGLE SENSOR) Disconnect the E84 steering control ECU connector.
Page 138 Standard Voltage: Switch Specified Tester Connection Condition Condition Engine switch E84-19 (SS1+) - E84- on (IG), steering Pulse generation 10 (SS1-) wheel rotated (0 to 5 V) slowly HINT: The output voltage should fluctuate up and down similarly to the diagram when the wheel is turned slowly.
Page 139 C15C3/75 Brake System Control Module Malfunction for Preparation Click here DESCRIPTION The steering control ECU detects a vehicle speed error by receiving an error signal from the skid control ECU via CAN communication. If the steering control ECU detects this error signal, it will turn the master warning light on, store this DTC, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area...
Page 141 C1595/55 Lost Communication with Steering Angle Sensor Module C15C4/68 Steering Angle Signal (Test Mode DTC) for Preparation Click here DESCRIPTION Signal transmission between the steering control ECU and steering angle sensor is performed via serial communication. If an error occurs between them in serial communication, the ECU will store DTC C1595/55. DTC Code DTC Detection Condition Trouble Area...
Page 142 Check if a steering angle sensor that complies with the vehicle specifications is installed. A steering angle sensor that complies with the vehicle specification is installed. REPLACE STEERING ANGLE SENSOR (Click here) 3.CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU - STEERING ANGLE SENSOR) Disconnect the E84 steering control ECU connector.
Page 143 Standard Voltage: Switch Specified Tester Connection Condition Condition Engine switch E84-19 (SS1+) - E84- on (IG), steering Pulse generation 10 (SS1-) wheel rotated (0 to 5 V) slowly HINT: The output voltage should fluctuate up and down similarly to the diagram when the wheel is turned slowly.
Page 144 C15C3/75 Brake System Control Module Malfunction for Preparation Click here DESCRIPTION The steering control ECU detects a vehicle speed error by receiving an error signal from the skid control ECU via CAN communication. If the steering control ECU detects this error signal, it will turn the master warning light on, store this DTC, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area...
Page 146 C15A1/61 Actuator Malfunction for Preparation Click here DESCRIPTION The steering control ECU drives the actuator while the steering wheel is turned to set the gear ratio. It detects the current flowing into the actuator motor driving circuit. If the steering control ECU detects excessive current, it will store DTC C15A1/61, turn on the master warning light, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area...
Page 147 Standard Resistance: Specified Tester Connection Condition Condition E83-1 (BMV) - E83-2 (BMU) E83-1 (BMV) - E83-3 Always 10 kΩ or higher (BMW) E83-2 (BMU) - E83-3 (BMW) E83-1 (BMV) - E85-5 (BMV+) E83-2 (BMU) - E85-4 Always Below 1 Ω (BMU+) E83-3 (BMW) - E85- 13 (BMW+)
Page 148 REPLACE STEERING CONTROL ECU (Click here) REPLACE STEERING ACTUATOR ASSEMBLY (Click here)
Page 149 C15C3/75 Brake System Control Module Malfunction for Preparation Click here DESCRIPTION The steering control ECU detects a vehicle speed error by receiving an error signal from the skid control ECU via CAN communication. If the steering control ECU detects this error signal, it will turn the master warning light on, store this DTC, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area...
Page 151 C15A2/62 Actuator Malfunction C15A6/62 Actuator Malfunction for Preparation Click here DESCRIPTION The steering control ECU drives the actuator based on steering angle sensor signals and vehicle speed signals. If the steering control ECU detects excessive current flowing into the steering actuator, or an internal malfunction, it will turn on the master warning light, store DTC C15A2/62, and stop VGRS operation.
Page 152 Only the actuator can be checked in this procedure. If it is normal, the steering control ECU is faulty. 1.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition...
Page 153 E83-2 (BMU) - Body Always 10 kΩ or higher ground E83-3 (BMW) - Body ground REPAIR OR REPLACE HARNESS OR CONNECTOR 3.CHECK STEERING ACTUATOR Disconnect the E83 steering control ECU connector. Measure the resistance according to the value(s) in the table below. HINT: The resistance must be measured with the steering actuator connector connected.
Page 155 C15C6/77 IG Power Supply Voltage Malfunction for Preparation Click here DESCRIPTION The steering control ECU monitors the IG power supply voltage. If the steering control ECU detects a malfunction, it will turn on the master warning light, store DTC C15C6/77, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area...
Page 156 Check for DTCs (Click here). Result Result Proceed to C15C6/77 is not output C15C6/77 is output (for LHD) C15C6/77 is output (for RHD) REPLACE STEERING CONTROL ECU (Click here) REPLACE STEERING CONTROL ECU (Click here) USE SIMULATION METHOD TO CHECK ( Click here)
Page 157 C15A2/62 Actuator Malfunction C15A6/62 Actuator Malfunction for Preparation Click here DESCRIPTION The steering control ECU drives the actuator based on steering angle sensor signals and vehicle speed signals. If the steering control ECU detects excessive current flowing into the steering actuator, or an internal malfunction, it will turn on the master warning light, store DTC C15A2/62, and stop VGRS operation.
Page 158 Only the actuator can be checked in this procedure. If it is normal, the steering control ECU is faulty. 1.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition...
Page 159 E83-2 (BMU) - Body Always 10 kΩ or higher ground E83-3 (BMW) - Body ground REPAIR OR REPLACE HARNESS OR CONNECTOR 3.CHECK STEERING ACTUATOR Disconnect the E83 steering control ECU connector. Measure the resistance according to the value(s) in the table below. HINT: The resistance must be measured with the steering actuator connector connected.
Page 161 C15C6/77 IG Power Supply Voltage Malfunction for Preparation Click here DESCRIPTION The steering control ECU monitors the IG power supply voltage. If the steering control ECU detects a malfunction, it will turn on the master warning light, store DTC C15C6/77, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area...
Page 162 Check for DTCs (Click here). Result Result Proceed to C15C6/77 is not output C15C6/77 is output (for LHD) C15C6/77 is output (for RHD) REPLACE STEERING CONTROL ECU (Click here) REPLACE STEERING CONTROL ECU (Click here) USE SIMULATION METHOD TO CHECK ( Click here)
Page 163 C15A2/62 Actuator Malfunction C15A6/62 Actuator Malfunction for Preparation Click here DESCRIPTION The steering control ECU drives the actuator based on steering angle sensor signals and vehicle speed signals. If the steering control ECU detects excessive current flowing into the steering actuator, or an internal malfunction, it will turn on the master warning light, store DTC C15A2/62, and stop VGRS operation.
Page 164 Only the actuator can be checked in this procedure. If it is normal, the steering control ECU is faulty. 1.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition...
Page 165 E83-2 (BMU) - Body Always 10 kΩ or higher ground E83-3 (BMW) - Body ground REPAIR OR REPLACE HARNESS OR CONNECTOR 3.CHECK STEERING ACTUATOR Disconnect the E83 steering control ECU connector. Measure the resistance according to the value(s) in the table below. HINT: The resistance must be measured with the steering actuator connector connected.
Page 167 C15C7/78 DC Motor Power Source Voltage Malfunction C15C8/79 Power Supply Relay Failure for Preparation Click here DESCRIPTION The steering control ECU monitors PIG (motor power source voltage) and detects a malfunction in the power supply relay (located inside the steering control ECU).
Page 168 REPAIR OR REPLACE HARNESS OR CONNECTOR 2.RECONFIRM DTC OUTPUT Check for DTCs (Click here). Result Result Proceed to C15C7/78 or C15C8/79 is not output C15C7/78 or C15C8/79 is output (for LHD) C15C7/78 or C15C8/79 is output (for RHD) REPLACE STEERING CONTROL ECU (Click here) REPLACE STEERING CONTROL ECU...
Page 169 C15A2/62 Actuator Malfunction C15A6/62 Actuator Malfunction for Preparation Click here DESCRIPTION The steering control ECU drives the actuator based on steering angle sensor signals and vehicle speed signals. If the steering control ECU detects excessive current flowing into the steering actuator, or an internal malfunction, it will turn on the master warning light, store DTC C15A2/62, and stop VGRS operation.
Page 170 Only the actuator can be checked in this procedure. If it is normal, the steering control ECU is faulty. 1.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition...
Page 171 E83-2 (BMU) - Body Always 10 kΩ or higher ground E83-3 (BMW) - Body ground REPAIR OR REPLACE HARNESS OR CONNECTOR 3.CHECK STEERING ACTUATOR Disconnect the E83 steering control ECU connector. Measure the resistance according to the value(s) in the table below. HINT: The resistance must be measured with the steering actuator connector connected.
Page 173 C15C7/78 DC Motor Power Source Voltage Malfunction C15C8/79 Power Supply Relay Failure for Preparation Click here DESCRIPTION The steering control ECU monitors PIG (motor power source voltage) and detects a malfunction in the power supply relay (located inside the steering control ECU).
Page 174 REPAIR OR REPLACE HARNESS OR CONNECTOR 2.RECONFIRM DTC OUTPUT Check for DTCs (Click here). Result Result Proceed to C15C7/78 or C15C8/79 is not output C15C7/78 or C15C8/79 is output (for LHD) C15C7/78 or C15C8/79 is output (for RHD) REPLACE STEERING CONTROL ECU (Click here) REPLACE STEERING CONTROL ECU...
Page 175 C15A3/63 Actuator Malfunction C15C5/69 Motor Revolution Angle Signal (Test Mode DTC) for Preparation Click here DESCRIPTION The steering actuator drives the internal motor using the current output from the steering control ECU to change the relative angle between the tire angle and steering wheel angle.
Page 176 Disconnect the E84 steering control ECU connector. Disconnect the E85 steering actuator connector. Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E84-4 (S1) - E85-2 (S1+) E84-6 (RV) - E85-1 (RV+) Always Below 1 Ω...
Page 177 The resistance must be measured with the steering actuator connector connected. Standard Resistance: Specified Tester Connection Condition Condition E84-4 (S1) - E84-6 (RV) E84-4 (S1) - E84-14 (S2) E84-4 (S1) - E84-15 (RG) Always Below 200 Ω E84-6 (RV) - E84-14 (S2) E84-6 (RV) - E84-15 (RG)
Page 179 C15C7/78 DC Motor Power Source Voltage Malfunction C15C8/79 Power Supply Relay Failure for Preparation Click here DESCRIPTION The steering control ECU monitors PIG (motor power source voltage) and detects a malfunction in the power supply relay (located inside the steering control ECU).
Page 180 REPAIR OR REPLACE HARNESS OR CONNECTOR 2.RECONFIRM DTC OUTPUT Check for DTCs (Click here). Result Result Proceed to C15C7/78 or C15C8/79 is not output C15C7/78 or C15C8/79 is output (for LHD) C15C7/78 or C15C8/79 is output (for RHD) REPLACE STEERING CONTROL ECU (Click here) REPLACE STEERING CONTROL ECU...
Page 181 C15A3/63 Actuator Malfunction C15C5/69 Motor Revolution Angle Signal (Test Mode DTC) for Preparation Click here DESCRIPTION The steering actuator drives the internal motor using the current output from the steering control ECU to change the relative angle between the tire angle and steering wheel angle.
Page 182 Disconnect the E84 steering control ECU connector. Disconnect the E85 steering actuator connector. Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E84-4 (S1) - E85-2 (S1+) E84-6 (RV) - E85-1 (RV+) Always Below 1 Ω...
Page 183 The resistance must be measured with the steering actuator connector connected. Standard Resistance: Specified Tester Connection Condition Condition E84-4 (S1) - E84-6 (RV) E84-4 (S1) - E84-14 (S2) E84-4 (S1) - E84-15 (RG) Always Below 200 Ω E84-6 (RV) - E84-14 (S2) E84-6 (RV) - E84-15 (RG)
Page 185 C15C7/78 DC Motor Power Source Voltage Malfunction C15C8/79 Power Supply Relay Failure for Preparation Click here DESCRIPTION The steering control ECU monitors PIG (motor power source voltage) and detects a malfunction in the power supply relay (located inside the steering control ECU).
Page 186 REPAIR OR REPLACE HARNESS OR CONNECTOR 2.RECONFIRM DTC OUTPUT Check for DTCs (Click here). Result Result Proceed to C15C7/78 or C15C8/79 is not output C15C7/78 or C15C8/79 is output (for LHD) C15C7/78 or C15C8/79 is output (for RHD) REPLACE STEERING CONTROL ECU (Click here) REPLACE STEERING CONTROL ECU...
Page 187 C15A4/64 Actuator Malfunction C15A9/66 Lock Holder Deviation Detection C15AA/66 Lock Mechanism Release Incomplete C15AB/66 Lock Mechanism Insertion Malfunction for Preparation Click here DESCRIPTION When the VGRS system is normal, the steering actuator conducts current from the steering control ECU to the steering actuator solenoid to release the lock mechanism, enabling motor operation.
Page 189 U0100/56 Lost Communication with ECM / PCM "A" U0122/56 Lost Communication with Vehicle Dynamics Control Module U0126/56 Lost Communication with Steering Angle Sensor Module for Preparation Click here DESCRIPTION The steering control ECU receives signals from the skid control ECU, ECM and steering angle sensor via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first.
Page 191 C15A4/64 Actuator Malfunction C15A9/66 Lock Holder Deviation Detection C15AA/66 Lock Mechanism Release Incomplete C15AB/66 Lock Mechanism Insertion Malfunction for Preparation Click here DESCRIPTION When the VGRS system is normal, the steering actuator conducts current from the steering control ECU to the steering actuator solenoid to release the lock mechanism, enabling motor operation.
Page 193 U0100/56 Lost Communication with ECM / PCM "A" U0122/56 Lost Communication with Vehicle Dynamics Control Module U0126/56 Lost Communication with Steering Angle Sensor Module for Preparation Click here DESCRIPTION The steering control ECU receives signals from the skid control ECU, ECM and steering angle sensor via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first.
Page 195 C15A4/64 Actuator Malfunction C15A9/66 Lock Holder Deviation Detection C15AA/66 Lock Mechanism Release Incomplete C15AB/66 Lock Mechanism Insertion Malfunction for Preparation Click here DESCRIPTION When the VGRS system is normal, the steering actuator conducts current from the steering control ECU to the steering actuator solenoid to release the lock mechanism, enabling motor operation.
Page 197 U0100/56 Lost Communication with ECM / PCM "A" U0122/56 Lost Communication with Vehicle Dynamics Control Module U0126/56 Lost Communication with Steering Angle Sensor Module for Preparation Click here DESCRIPTION The steering control ECU receives signals from the skid control ECU, ECM and steering angle sensor via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first.
Page 199 C15A4/64 Actuator Malfunction C15A9/66 Lock Holder Deviation Detection C15AA/66 Lock Mechanism Release Incomplete C15AB/66 Lock Mechanism Insertion Malfunction for Preparation Click here DESCRIPTION When the VGRS system is normal, the steering actuator conducts current from the steering control ECU to the steering actuator solenoid to release the lock mechanism, enabling motor operation.
Page 201 U0100/56 Lost Communication with ECM / PCM "A" U0122/56 Lost Communication with Vehicle Dynamics Control Module U0126/56 Lost Communication with Steering Angle Sensor Module for Preparation Click here DESCRIPTION The steering control ECU receives signals from the skid control ECU, ECM and steering angle sensor via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first.
Page 203 C15A5/65 Actuator Malfunction for Preparation Click here DESCRIPTION If the steering control ECU detects a malfunction in the lock mechanism, it will turn the master warning light on, store DTC C15A5/65, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area Harness or connector The steering control ECU detects that the LG terminal voltage is...
Page 204 Standard Resistance: Specified Tester Connection Condition Condition E84-3 (LV) - E85-7 (LV+) Always Below 1 Ω E84-12 (LG) - E85-16 (LG+) E84-3 (LV) - Body ground Always 10 kΩ or higher E84-12 (LG) - Body ground Measure the voltage according to the value(s) in the table below. Standard Voltage: Specified Tester Connection...
Page 206 U0100/56 Lost Communication with ECM / PCM "A" U0122/56 Lost Communication with Vehicle Dynamics Control Module U0126/56 Lost Communication with Steering Angle Sensor Module for Preparation Click here DESCRIPTION The steering control ECU receives signals from the skid control ECU, ECM and steering angle sensor via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first.
Page 208 C15B1/71 ECU Malfunction C15B2/72 ECU Malfunction C15B3/73 ECU Malfunction for Preparation Click here DESCRIPTION If the steering control ECU detects an internal malfunction, it will turn the master warning light on, store these DTCs, and stop VGRS operation. DTC Code DTC Detection Condition Trouble Area C15B1/71...
Page 209 U0100/56 Lost Communication with ECM / PCM "A" U0122/56 Lost Communication with Vehicle Dynamics Control Module U0126/56 Lost Communication with Steering Angle Sensor Module for Preparation Click here DESCRIPTION The steering control ECU receives signals from the skid control ECU, ECM and steering angle sensor via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first.
Page 211 VARIABLE GEAR RATIO STEERING SYSTEM > Steering Wheel is Off-center or Deviates from Neutral Position for Preparation Click here INSPECTION PROCEDURE This problem may be caused by a malfunction in the vehicle stability control system or steering system. Make sure that no DTC is output for the skid control ECU or steering control ECU before proceeding with the following procedures. If a DTC is output for either of these ECUs, first troubleshoot it and then proceed to the troubleshooting below.
Page 213 VARIABLE GEAR RATIO STEERING SYSTEM > VGRS System Stops or does not Operate for Preparation Click here INSPECTION PROCEDURE HINT: This problem may be caused by a malfunction in the vehicle stability control system or steering system. Make sure that no DTC is output for the skid control ECU or steering control ECU before proceeding with the following procedures. If a DTC is output for either of these ECUs, first troubleshoot it and then proceed to the troubleshooting below.
Page 214 Standard steering effort: Below 6.9 N*m (70 kgf*cm, 61 in.*lbf) HINT: After completing the inspection or repair, attempt to simulate the problem and then perform "Read Value Using Intelligent Tester" above again to reconfirm that the problem does not occur. GO TO POWER STEERING SYSTEM (PROBLEM SYMPTOMS TABLE) (Click...
Page 216 VARIABLE GEAR RATIO STEERING SYSTEM > Steering Angle Differs between Left and Right for Preparation Click here INSPECTION PROCEDURE HINT: Check that the steering wheel is centered. After checking that no DTC is output for the VGRS system, perform the following procedure. 1.CHECK STEERING WHEEL POSITION Turn the steering wheel from lock to lock at a speed of approximately 90°/sec.
Page 218 VARIABLE GEAR RATIO STEERING SYSTEM > Steering Wheel Vibrates or Abnormal Noise is Heard from Steering Wheel for Preparation Click here INSPECTION PROCEDURE HINT: Check that no DTC is output for the VGRS system and vehicle stability control system. 1.CHECK STEERING WHEEL CONDITION Center the steering wheel.
Page 220 VARIABLE GEAR RATIO STEERING SYSTEM > Master Warning Light Malfunction for Preparation Click here DESCRIPTION If the steering control ECU detects that the VGRS system has a malfunction, warning information is transmitted to the combination meter via CAN communication. The combination meter will turn the master warning light on based on this information. Warning information is transmitted via the following route: Steering control ECU →...
Page 221 Result Proceed to Result OK (for LHD) OK (for RHD) REPLACE STEERING CONTROL ECU (Click here) REPLACE STEERING CONTROL ECU (Click here) GO TO METER/GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) ( Click here)
Page 222 STEERING ACTUATOR > COMPONENTS for Preparation Click here 1 / 1...
Page 224 STEERING ACTUATOR > REMOVAL for Preparation Click here CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing the steering column (Click here). 1. REMOVE STEERING COLUMN ASSEMBLY Remove the steering column assembly ( Click here).
Page 225 Put matchmarks on the steering actuator and No. 2 steering intermediate shaft. Remove the bolt, and then pull out the actuator assembly toward the inside of the vehicle.
Page 226 STEERING ACTUATOR > INSTALLATION for Preparation Click here 1. HANDLING PRECAUTIONS FOR STEERING ACTUATOR ASSEMBLY NOTICE: Be careful that the No. 2 seal lip or boot does not turn outward while carrying or installing the steering actuator assembly. If installing a new steering actuator assembly, make sure that the spiral center lock pin is securely inserted. Do not use the steering actuator assembly if it has been dropped.
Page 227 Align the matchmarks on the No. 2 steering intermediate shaft and steering actuator. HINT: Install the steering actuator from the inside of the vehicle. NOTICE: Do not fold back the boot part of the steering hole cover or turn it excessively. If it is turned excessively, return it to its original position.
Page 228 3. INSTALL STEERING COLUMN ASSEMBLY Install the steering column (Click here). 4. PERFORM VARIABLE GEAR RATIO STEERING SYSTEM CALIBRATION Perform variable gear ratio steering system calibration (Click here).
Page 229 STEERING CONTROL ECU (for LHD) > COMPONENTS for Preparation Click here 1 / 4...
Page 230 2 / 4...
Page 231 3 / 4 4 / 4...
Page 233 STEERING CONTROL ECU (for LHD) > REMOVAL for Preparation Click here 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. NOTICE: w/ Navigation System: After the engine switch is turned off, the navigation system requires approximately 90 seconds to record various types of memory and settings.
Page 234 5. REMOVE FRONT DOOR SCUFF PLATE LH w/o Illumination: Detach the 7 claws and 4 clips, and remove the scuff plate. w/ Illumination: Detach the 7 claws and 4 clips. Disconnect the connector and remove the scuff plate. 6. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY Remove the 2 screws.
Page 235 7. REMOVE COWL SIDE TRIM BOARD LH Attach the 2 clips to install the trim board. Install the cap nut. 8. REMOVE LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL Using a screwdriver, detach the 2 claws and open the hole cover. HINT: Tape the screwdriver tip before use.
Page 236 Detach the 2 claws and remove the sensor. Detach the 2 claws and disconnect the 2 control cables. Remove the finish panel and then disconnect the connectors. 9. REMOVE NO. 1 SWITCH HOLE BASE Detach the 5 claws. Disconnect the connectors and remove the switch hole base. 10.
Page 237 Remove the 5 bolts and driver side knee airbag. Disconnect the connector. NOTICE: When handling the airbag connector, take care not to damage the airbag wire harness. 11. REMOVE INSTRUMENT PANEL BOX ASSEMBLY Detach the 5 claws. Remove the box and then disconnect the connectors. 12.
Page 238 13. REMOVE STEERING CONTROL ECU Remove the bolt, nut and ECU from the junction block.
Page 240 STEERING CONTROL ECU (for LHD) > INSTALLATION for Preparation Click here 1. INSTALL STEERING CONTROL ECU Install the ECU to the junction block with the bolt and nut. Torque: 8.0 N*m{ 82 kgf*cm , 71 in.*lbf } 2. INSTALL STEERING CONTROL ECU WITH JUNCTION BLOCK Front side: Connect the 5 connectors.
Page 241 3. INSTALL INSTRUMENT PANEL BOX ASSEMBLY Connect the connectors. Attach the 5 claws to install the box. 4. INSTALL DRIVER SIDE KNEE AIRBAG ASSEMBLY Connect the connector.
Page 242 NOTICE: When handling the airbag connector, take care not to damage the airbag wire harness. Install the driver side knee airbag with the 5 bolts. Torque: 10 N*m{ 102 kgf*cm , 7 ft.*lbf } 5. INSTALL NO. 1 SWITCH HOLE BASE Connect the connectors.
Page 243 Install the 2 bolts. Attach the 2 claws to close the hole cover. 7. INSTALL COWL SIDE TRIM BOARD LH Attach the 2 clips to install the trim board. Install the cap nut. 8. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY Connect the connectors.
Page 244 Connect the connectors. Attach the 3 claws to install the under cover. Install the 2 screws. 9. INSTALL FRONT DOOR SCUFF PLATE LH w/o Illumination: Attach the 7 claws and 4 clips to install the scuff plate. w/ Illumination: Connect the connector. Attach the 7 claws and 4 clips to install the scuff plate.
Page 245 11. INSTALL INNER NO. 1 INSTRUMENT PANEL BRACKET COVER LH Attach the clip to install the cover. Install the clip. 12. INSTALL LOWER INSTRUMENT PANEL PAD SUB-ASSEMBLY LH Connect the connector. Attach the 8 claws to install the panel pad. 13.
Page 247 STEERING CONTROL ECU (for RHD) > COMPONENTS for Preparation Click here 1 / 4...
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Page 250 4 / 4...
Page 251 STEERING CONTROL ECU (for RHD) > REMOVAL for Preparation Click here 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. NOTICE: After the engine switch is turned off, the navigation system requires approximately 90 seconds to record various types of memory and settings.
Page 252 Place protective tape as shown in the illustration. Using a moulding remover, detach the 6 claws and remove the side panel. w/ Airbag Cut Off Switch: Place protective tape as shown in the illustration. Using a moulding remover, detach the 6 claws. iii.
Page 253 HINT: Tape the screwdriver tip before use. Remove the 2 bolts. Detach the 16 claws. Detach the 2 claws and remove the sensor. Detach the 2 claws and disconnect the 2 control cables. Remove the finish panel and then disconnect the connectors.
Page 254 9. REMOVE NO. 1 SWITCH HOLE BASE Detach the 5 claws. Disconnect the connectors and remove the switch hole base. 10. REMOVE DRIVER SIDE KNEE AIRBAG ASSEMBLY Remove the 5 bolts and driver side knee airbag. Disconnect the connector. NOTICE: When handling the airbag connector, take care not to damage the airbag wire harness.
Page 255 12. REMOVE STEERING CONTROL ECU WITH JUNCTION BLOCK Rear side: Disconnect the 2 connectors. Remove the bolt and 2 nuts. Front side: Disconnect the 3 connectors. Remove the steering control ECU with the junction block. 13. REMOVE STEERING CONTROL ECU Remove the 2 bolts and separate the steering control ECU from the junction block.
Page 257 STEERING CONTROL ECU (for RHD) > INSTALLATION for Preparation Click here 1. INSTALL STEERING CONTROL ECU Install the steering control ECU to the junction block with the 2 bolts. Torque: for bolt A: 5.0 N*m{ 56 kgf*cm , 49 in.*lbf } for bolt B: 8.0 N*m{ 82 kgf*cm , 71 in.*lbf } 2.
Page 258 3. INSTALL INSTRUMENT PANEL BOX ASSEMBLY Connect the connectors. Attach the 5 claws to install the box. 4. INSTALL DRIVER SIDE KNEE AIRBAG ASSEMBLY Connect the connector.
Page 259 NOTICE: When handling the airbag connector, take care not to damage the airbag wire harness. Install the driver side knee airbag with the 5 bolts. Torque: 10 N*m{ 102 kgf*cm , 7 ft.*lbf }...
Page 260 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > PARTS LOCATION for Preparation Click here 1 / 2...
Page 261 2 / 2...
Page 263 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > SYSTEM DIAGRAM for Preparation Click here...
Page 265 Communication Table Sender Receiver Signal Line Engine switch signal Key switch signal Main Body ECU Multiplex Tilt and Telescopic ECU Key signal for push start system Tilt and telescopic execution signal Front Power Seat Switch LH*1 or RH*2 Multiplex Tilt and Telescopic ECU Tilt and telescopic completion (Position Control ECU) signal...
Page 266 Play command of memory 1 for driver seat Front Power Seat Switch LH*1 or RH*2 Multiplex Tilt and Telescopic ECU Play command of memory 2 for (Position Control ECU) driver seat Play command of memory 3 for driver seat Start signal to play tilt and Telescopic steering Stop signal to play tilt and Telescopic steering...
Page 267 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > SYSTEM DESCRIPTION for Preparation Click here FUNCTION OF MAIN COMPONENTS Component Function This ECU sends a control signal to the power tilt motor and power telescopic motor, based on Multiplex tilt and telescopic ECU signals from each switch, to adjust the steering position.
Page 269 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING for Preparation Click here HINT: Use the following procedures to troubleshoot the power tilt and telescopic steering column system. *: Use the intelligent tester. 1.VEHICLE BROUGHT TO WORKSHOP NEXT 2.INSPECT BATTERY VOLTAGE Standard voltage:...
Page 270 5.PROBLEM SYMPTOMS TABLE Result Result Proceed to Fault is not listed in problem symptoms table Fault is listed in problem symptoms table Go to step 7 6.OVERALL ANALYSIS AND TROUBLESHOOTING* Terminals of ECU (Click here) Data List/Active Test (Click here) NEXT 7.REPAIR NEXT...
Page 272 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING for Preparation Click here HINT: Use the following procedures to troubleshoot the power tilt and telescopic steering column system. *: Use the intelligent tester. 1.VEHICLE BROUGHT TO WORKSHOP NEXT 2.INSPECT BATTERY VOLTAGE Standard voltage:...
Page 273 5.PROBLEM SYMPTOMS TABLE Result Result Proceed to Fault is not listed in problem symptoms table Fault is listed in problem symptoms table Go to step 7 6.OVERALL ANALYSIS AND TROUBLESHOOTING* Terminals of ECU (Click here) Data List/Active Test (Click here) NEXT 7.REPAIR NEXT...
Page 275 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > CUSTOMIZE PARAMETERS for Preparation Click here CUSTOMIZING FUNCTION WITH INTELLIGENT TESTER (REFERENCE) NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make a note of the current settings before customizing.
Page 276 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > PROBLEM SYMPTOMS TABLE for Preparation Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Page 278 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > TERMINALS OF ECU for Preparation Click here CHECK MULTIPLEX TILT AND TELESCOPIC ECU Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition Engine switch on (IG) Telescopic 11 to 14 V steering A-2 (TEM+) - E27-11 (GND) - (Not available) - W-B...
Page 279 ground E27-14 (CANN) - E27-11 R - W-B CAN communication Engine switch on (IG) Below 1 V (GND) E27-17 (E1) - Body ground G - Body ground Tilt sensor ground Always Below 1 V...
Page 280 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > DTC CHECK / CLEAR for Preparation Click here CHECK DTC Connect the intelligent tester to the DLC3. Turn the engine switch on (IG). Turn the intelligent tester on. Enter the following menus: Body / Tilt & Telescopic / DTC. Read the DTCs.
Page 281 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > FREEZE FRAME DATA for Preparation Click here FREEZE FRAME DATA Connect the intelligent tester to the DLC3. Turn the engine switch on (IG) and check the freeze frame data by following the prompts on the intelligent tester screen. Tilt &...
Page 282 Freeze Speed Vehicle speed data/min: 0 km/h (0 mph), max.: 255 km/h (158 Actual vehicle speed Info mph) ON: Communication is normal IG SW (CAN) Communication state of engine switch/ON or OFF OFF: Communication is interrupted Key Code Communication state of key code confirmation signal/ON or ON: Communication is normal Confirm (CAN) OFF: Communication is interrupted...
Page 283 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > FAIL-SAFE CHART for Preparation Click here HINT: If the power source voltage to the tilt and telescopic ECU returns to normal within 10 seconds during tilt or telescopic operation, the operation will be resumed.
Page 285 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > DATA LIST / ACTIVE TEST for Preparation Click here READ DATA LIST HINT: Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts.
Page 286 switch Tilt Up Switch Input state of tilt up by manual switch/ON or OFF OFF: Tilt up not activated by manual switch ON: Tilt up activated by manual Tilt Up SW switch Input state of tilt up by manual switch/ON or OFF (CAN) OFF: Tilt up not activated by manual switch...
Page 287 Communication state of optional after parts ECU signal/OK or Interruption: Communication Interruption interrupted The Number of Actual number of diagnostic trouble Number of diagnostic trouble codes/min.: 0, max.: 255 DTCs codes PERFORM ACTIVE TEST HINT: Using the intelligent tester to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed.
Page 288 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > DIAGNOSTIC TROUBLE CODE CHART for Preparation Click here HINT: If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below. Power Tilt and Power Telescopic Steering Column System DTC Code Detection Item...
Page 290 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > DIAGNOSTIC TROUBLE CODE CHART for Preparation Click here HINT: If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below. Power Tilt and Power Telescopic Steering Column System DTC Code Detection Item...
Page 292 B2602 Key Unlock Warning Switch Circuit Malfunction B2606 Key Code Confirm Signal Malfunction for Preparation Click here DESCRIPTION A key code confirmation signal (ON or OFF) is sent from the main body ECU to the multiplex tilt and telescopic ECU via the communication bus. The multiplex tilt and telescopic ECU uses this signal to operate the auto away/return function.
Page 293 B2621 is output HINT: If DTC B2621 is output, perform troubleshooting for B2621 first. DTC B2621 indicates a communication interruption for the power tilt and power telescopic steering column system. REPAIR CIRCUIT INDICATED BY OUTPUT CODE ( Click here) 2.READ VALUE USING INTELLIGENT TESTER (COMMUNICATION STATE OF ENGINE SWITCH AND KEY CODE) Use the Data List to check if the communication of the key code and the engine switch are functioning properly.
Page 295 B2610 Tilt Position Sensor or Tilt Motor Circuit Malfunction for Preparation Click here DESCRIPTION The tilt motor is operated by the power source voltage supplied from the multiplex tilt and telescopic ECU and tilts the steering column up and down. The tilt position sensor (Hall IC) in the tilt motor detects the tilt angle of the steering column and outputs a signal to the CPU based on that tilt.
Page 296 Select the Active Test, use the intelligent tester to generate a control command, and then check that the steering wheel tilts up and down. Tilt & Telescopic Tester Display Test Part Control Range Diagnostic Note Tilt Operation Tilt operation Up/Down Result Result Proceed to...
Page 297 3.INSPECT TILT MOTOR Apply 12 V battery voltage to the tilt motor connector. Then check the steering wheel tilt operation. Measurement Condition Specified Condition 12 V battery positive (+) lead → Terminal E17-1 (TIM+) The steering wheel tilts 12 V battery negative (-) lead → Terminal E17-2 (TIM-) 12 V battery positive (+) lead →...
Page 298 E27-7 (TIS) - Body Always 10 kΩ or higher ground E27-17 (E1) - Body ground REPAIR OR REPLACE HARNESS OR CONNECTOR 5.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection...
Page 299 Reconnect the E17 tilt motor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage: Specified Tester Connection Condition Condition Pulse generation E27-7 (TIS) - E27-17 Steering tilting High: 8 to 16 V (E1) up or tilting down Low: Below 1 V REPLACE STEERING COLUMN ASSEMBLY (Click...
Page 300 B2602 Key Unlock Warning Switch Circuit Malfunction B2606 Key Code Confirm Signal Malfunction for Preparation Click here DESCRIPTION A key code confirmation signal (ON or OFF) is sent from the main body ECU to the multiplex tilt and telescopic ECU via the communication bus. The multiplex tilt and telescopic ECU uses this signal to operate the auto away/return function.
Page 301 B2621 is output HINT: If DTC B2621 is output, perform troubleshooting for B2621 first. DTC B2621 indicates a communication interruption for the power tilt and power telescopic steering column system. REPAIR CIRCUIT INDICATED BY OUTPUT CODE ( Click here) 2.READ VALUE USING INTELLIGENT TESTER (COMMUNICATION STATE OF ENGINE SWITCH AND KEY CODE) Use the Data List to check if the communication of the key code and the engine switch are functioning properly.
Page 303 B2611 Telescopic Position Sensor or Telescopic Motor Circuit Malfunction for Preparation Click here DESCRIPTION The telescopic motor is operated by the power source voltage supplied from the multiplex tilt and telescopic ECU and slides the steering column forward and backward. The telescopic position sensor (Hall IC) in the telescopic motor detects the sliding position in the forward and backward directions of the steering column and outputs a signal to the multiplex tilt and telescopic ECU based on that sliding amount.
Page 304 INSPECTION PROCEDURE HINT: The wire harness between the multiplex tilt and telescopic ECU and telescopic motor is provided with the steering column assembly. 1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TELESCOPIC SHORT/LONG) Select the Active Test, use the intelligent tester to generate a control command, and then check that the steering column contracts and extends.
Page 305 Measure the voltage according to the value(s) in the table below. Standard Voltage: Specified Tester Connection Switch Condition Condition Engine switch on A-3 (VCE) - A-5 (E2) 8 to 16 V (IG) Go to step 5 4.CHECK TELESCOPIC POSITION SENSOR Measure the voltage according to the value(s) in the table below.
Page 306 REPAIR OR REPLACE HARNESS OR CONNECTOR 6.CHECK HARNESS AND CONNECTOR (ECU - BODY GROUND) Disconnect the E27 multiplex tilt and telescopic ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E27-11 (GND) - Body Always...
Page 308 B2602 Key Unlock Warning Switch Circuit Malfunction B2606 Key Code Confirm Signal Malfunction for Preparation Click here DESCRIPTION A key code confirmation signal (ON or OFF) is sent from the main body ECU to the multiplex tilt and telescopic ECU via the communication bus. The multiplex tilt and telescopic ECU uses this signal to operate the auto away/return function.
Page 309 B2621 is output HINT: If DTC B2621 is output, perform troubleshooting for B2621 first. DTC B2621 indicates a communication interruption for the power tilt and power telescopic steering column system. REPAIR CIRCUIT INDICATED BY OUTPUT CODE ( Click here) 2.READ VALUE USING INTELLIGENT TESTER (COMMUNICATION STATE OF ENGINE SWITCH AND KEY CODE) Use the Data List to check if the communication of the key code and the engine switch are functioning properly.
Page 311 B2620 ECU Power Source Circuit Malfunction for Preparation Click here DESCRIPTION The ECU power source circuit supplies positive voltage to the multiplex tilt and telescopic ECU. DTC Code Detection Condition Trouble Area ECU-B1 fuse The ECU power source voltage drops to 8 V or less and Harness or connector B2620 this condition continues for 10 sec.
Page 312 ground REPAIR OR REPLACE HARNESS OR CONNECTOR 3.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E27-11 (GND) - Body Always Below 1 Ω...
Page 314 B2602 Key Unlock Warning Switch Circuit Malfunction B2606 Key Code Confirm Signal Malfunction for Preparation Click here DESCRIPTION A key code confirmation signal (ON or OFF) is sent from the main body ECU to the multiplex tilt and telescopic ECU via the communication bus. The multiplex tilt and telescopic ECU uses this signal to operate the auto away/return function.
Page 315 B2621 is output HINT: If DTC B2621 is output, perform troubleshooting for B2621 first. DTC B2621 indicates a communication interruption for the power tilt and power telescopic steering column system. REPAIR CIRCUIT INDICATED BY OUTPUT CODE ( Click here) 2.READ VALUE USING INTELLIGENT TESTER (COMMUNICATION STATE OF ENGINE SWITCH AND KEY CODE) Use the Data List to check if the communication of the key code and the engine switch are functioning properly.
Page 317 B2621 Communication Interruption for Preparation Click here DESCRIPTION The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems through the communication bus. Each ECU informs the other ECUs that it is connected to the network by outputting a specified signal (periodic signal) to the communication bus on a regular schedule. The multiplex tilt and telescopic ECU detects the connection of each ECU based on the signal.
Page 319 B2603 Tilt and Telescopic Manual Switch Circuit Malfunction for Preparation Click here DESCRIPTION Different voltage values are input to the multiplex tilt and telescopic ECU by operating the tilt and telescopic manual switch. The multiplex tilt and telescopic ECU then judges which motor and in which direction that motor should be moved based on the voltage value. DTC Code Detection Condition Trouble Area...
Page 320 INSPECTION PROCEDURE 1.READ VALUE USING INTELLIGENT TESTER (TILT AND TELESCOPIC MANUAL SWITCH) Use the Data List to check if the tilt and telescopic manual switch is functioning properly. Tilt & Telescopic Diagnostic Tester Display Measurement Item/Range Normal Condition Note ON: Tilt up activated by manual switch Tilt Up Switch Input state of tilt up by manual switch/ON or OFF OFF: Tilt up not activated by manual switch...
Page 321 Clear the DTCs (Click here). Check for DTCs (Click here). Result Result Proceed to DTC is output DTC is not output USE SIMULATION METHOD TO CHECK ( Click here) REPLACE MULTIPLEX TILT AND TELESCOPIC ECU ( Click here) 3.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - HEADLIGHT DIMMER SWITCH) Disconnect the E27 multiplex tilt and telescopic ECU connector.
Page 322 E15-6 (VC) - Body ground Always 10 kΩ or higher E15-7 (MSW) - Body ground REPAIR OR REPLACE HARNESS OR CONNECTOR 4.CHECK MULTIPLEX TILT AND TELESCOPIC ECU (VC TERMINAL VOLTAGE) Reconnect the E27 multiplex tilt and telescopic ECU connector. Measure the voltage according to the value(s) in the table below. Standard Voltage: Specified Tester Connection...
Page 323 REPLACE HEADLIGHT DIMMER SWITCH ( Click here)
Page 324 B2624 Vehicles Speed Malfunction for Preparation Click here DESCRIPTION The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems through the communication bus. Each ECU informs the other ECUs that it is connected to the network by outputting a specified signal (periodic signal) to the communication bus on a regular schedule. The multiplex tilt and telescopic ECU receives vehicle speed signals from the combination meter via the communication bus to prevent improper operation of the auto away/return function during driving.
Page 326 B2603 Tilt and Telescopic Manual Switch Circuit Malfunction for Preparation Click here DESCRIPTION Different voltage values are input to the multiplex tilt and telescopic ECU by operating the tilt and telescopic manual switch. The multiplex tilt and telescopic ECU then judges which motor and in which direction that motor should be moved based on the voltage value. DTC Code Detection Condition Trouble Area...
Page 327 INSPECTION PROCEDURE 1.READ VALUE USING INTELLIGENT TESTER (TILT AND TELESCOPIC MANUAL SWITCH) Use the Data List to check if the tilt and telescopic manual switch is functioning properly. Tilt & Telescopic Diagnostic Tester Display Measurement Item/Range Normal Condition Note ON: Tilt up activated by manual switch Tilt Up Switch Input state of tilt up by manual switch/ON or OFF OFF: Tilt up not activated by manual switch...
Page 328 Clear the DTCs (Click here). Check for DTCs (Click here). Result Result Proceed to DTC is output DTC is not output USE SIMULATION METHOD TO CHECK ( Click here) REPLACE MULTIPLEX TILT AND TELESCOPIC ECU ( Click here) 3.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - HEADLIGHT DIMMER SWITCH) Disconnect the E27 multiplex tilt and telescopic ECU connector.
Page 329 E15-6 (VC) - Body ground Always 10 kΩ or higher E15-7 (MSW) - Body ground REPAIR OR REPLACE HARNESS OR CONNECTOR 4.CHECK MULTIPLEX TILT AND TELESCOPIC ECU (VC TERMINAL VOLTAGE) Reconnect the E27 multiplex tilt and telescopic ECU connector. Measure the voltage according to the value(s) in the table below. Standard Voltage: Specified Tester Connection...
Page 330 REPLACE HEADLIGHT DIMMER SWITCH ( Click here)
Page 331 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > Actuator Power Source Circuit for Preparation Click here DESCRIPTION This is the power source for the motors. WIRING DIAGRAM INSPECTION PROCEDURE 1.INSPECT FUSE (TI&TE) Remove the TI&TE fuse from the main body ECU. Measure the resistance according to the value(s) in the table below.
Page 332 REPAIR OR REPLACE HARNESS OR CONNECTOR 3.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E27-11 (GND) - Body Always Below 1 Ω...
Page 334 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > Tilt and Telescopic Manual Switch Circuit for Preparation Click here DESCRIPTION The signals generated by operating the manual switch are sent to the multiplex tilt and telescopic ECU through the serial line. INSPECTION PROCEDURE 1.READ VALUE USING INTELLIGENT TESTER (TILT AND TELESCOPIC MANUAL SWITCH) Use the Data List to check if the tilt and telescopic manual switch is functioning properly.
Page 336 POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM > IG Power Source Circuit for Preparation Click here DESCRIPTION When the engine switch is turned on (IG), the IG power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU. The multiplex tilt and telescopic ECU also receives engine switch signals via this circuit.
Page 337 11 (GND) (IG) 11 to 14 V Go to step 3 REPLACE MULTIPLEX TILT AND TELESCOPIC ECU ( Click here) 3.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection...
Page 338 Measure the voltage according to the value(s) in the table below. Standard Voltage: Specified Tester Connection Switch Condition Condition Engine switch on 2D-56 - Body ground 11 to 14 V (IG) REPAIR OR REPLACE HARNESS OR CONNECTOR (MAIN BODY ECU - BATTERY) REPAIR OR REPLACE HARNESS OR CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - MAIN BODY ECU)
Page 339 STEERING LOCK SYSTEM > PRECAUTION for Preparation Click here 1.PRECAUTIONS WHEN WORKING ON ELECTRIC STEERING LOCK After replacing the steering lock actuator assembly (steering lock ECU), perform the key ID code registration. If the steering lock actuator assembly (steering lock ECU) is replaced, open and close the driver's door. The engine may not start until the driver's door is opened or closed.
Page 340 STEERING LOCK SYSTEM > PARTS LOCATION for Preparation Click here 1 / 2...
Page 341 2 / 2...
Page 343 STEERING LOCK SYSTEM > SYSTEM DIAGRAM for Preparation Click here Input and Output Signals of Each ECU Communication Transmitting ECU Receiving ECU Signal Method Main Body ECU Steering Lock ECU Power supply status (to steering lock motor) Certification ECU (Smart Key ECU Assembly) Steering Lock Sleep available status...
Page 344 Main Body ECU Motor control status ID Code Box (Immobiliser Code ECU) Certification ECU (Smart Key ECU Assembly) Steering Lock Diagnostic response status Main Body ECU ID Code Box (Immobiliser Code ECU) Certification ECU (Smart Key ECU Assembly) Steering Lock Lock/unlock sensor malfunction Main Body ECU ID Code Box (Immobiliser Code ECU)
Page 346 STEERING LOCK SYSTEM > SYSTEM DESCRIPTION for Preparation Click here DESCRIPTION The steering lock system locks and unlocks the steering lock by activating the steering lock bar with a motor. The steering lock ECU activates the motor based on permission signals from the certification ECU (smart key ECU assembly) and main body ECU. FUNCTIONS OF COMPONENTS Item Function...
Page 348 STEERING LOCK SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING for Preparation Click here HINT: Use the following procedures to troubleshoot the steering lock system. *: Use the intelligent tester. 1.VEHICLE BROUGHT TO WORKSHOP NEXT 2.INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding.
Page 349 6.REPAIR OR REPLACE NEXT 7.CONFIRMATION TEST NEXT...
Page 350 STEERING LOCK SYSTEM > PROBLEM SYMPTOMS TABLE for Preparation Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Page 352 STEERING LOCK SYSTEM > PROBLEM SYMPTOMS TABLE for Preparation Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Page 354 STEERING LOCK SYSTEM > PROBLEM SYMPTOMS TABLE for Preparation Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Page 356 STEERING LOCK SYSTEM > TERMINALS OF ECU for Preparation Click here CHECK STEERING LOCK ECU Disconnect the E26 steering lock ECU connector. Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition...
Page 358 STEERING LOCK SYSTEM > DIAGNOSIS SYSTEM for Preparation Click here DESCRIPTION When troubleshooting a vehicle with a diagnosis system, connect the intelligent tester to the DLC3 of the vehicle and read various data output from the steering lock ECU. The steering lock ECU stores DTCs when the ECU detects a malfunction in itself or in its circuits. The diagnosis information of the steering lock ECU is transmitted to the intelligent tester via the certification ECU (smart key ECU assembly) as the steering lock ECU is not connected to the CAN communication system.
Page 359 STEERING LOCK SYSTEM > DTC CHECK / CLEAR for Preparation Click here CHECK DTC Connect the intelligent tester to the DLC3. Turn the engine switch on (IG). Turn the intelligent tester on. Enter the following menus: Body / Entry&Start / DTC. Check for DTCs.
Page 360 STEERING LOCK SYSTEM > DATA LIST / ACTIVE TEST for Preparation Click here DATA LIST HINT: Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts.
Page 361 Receive status/NG or OK OK: Lock request received NG (Past): S code not S Code S code match record/NG (Past) or OK matched Check(Past) OK: S code matched NG (Past): L code not L Code L code match record/NG (Past) or OK matched Check(Past) OK: L code matched...
Page 362 STEERING LOCK SYSTEM > DIAGNOSTIC TROUBLE CODE CHART for Preparation Click here HINT: If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below. Steering Lock System DTC Code Detection Item...
Page 363 B2781 Open / Short in Steering Lock ECU for Preparation Click here DESCRIPTION The steering lock ECU and steering lock actuator assembly are supplied as a unit. The steering lock ECU detects the steering lock position through the signals from the lock and unlock position sensors. The steering lock ECU activates the steering lock motor based on permission signals from the main body ECU and the certification ECU (smart key ECU assembly).
Page 365 B2788 IG2 Signal Malfunction for Preparation Click here DESCRIPTION The steering lock ECU determines the on/off status of the engine switch through the IG2 signal circuit. After receiving an integration relay (IG2 relay) on signal, the steering lock ECU determines that the vehicle is moving. The steering lock ECU does not lock the steering when it receives the integration relay (IG2 relay) on signal.
Page 366 Go to step 2 REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) ( Click here) 2.INSPECT FUSE (IGN, IG2 MAIN) Remove the IGN fuse and IG2 MAIN fuse from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection...
Page 367 Disconnect the E26 steering lock ECU connector. Disconnect the 1B and 1C integration relay connectors. Measure the voltage and resistance according to the value(s) in the table below. Standard Voltage: Specified Tester Connection Condition Condition 1C-1 - Body Always 11 to 14 V ground Standard Resistance: Specified...
Page 368 Always Below 1 Ω 1B-7 - Body Always Below 1 Ω ground E2-11 (IG2D) or 1B-6 - Body Always 10 kΩ or higher ground REPAIR OR REPLACE HARNESS OR CONNECTOR REPLACE MAIN BODY ECU...
Page 369 B2782 Power Source Control ECU Malfunction for Preparation Click here DESCRIPTION The steering lock ECU activates the steering lock motor by the power from the main body ECU through the IGE circuit. This prevents the steering from being locked while the vehicle is moving. The diagnosis information of the steering lock ECU is transmitted to the intelligent tester via the certification ECU (smart key ECU assembly) as the steering lock ECU is not connected to the CAN communication system.
Page 370 Connection Condition Condition Engine switch on (IG) E26-3 (IGE) - Steering Below 1 V E26-1 (GND) lock motor operating Engine switch on (IG) E26-3 (IGE) - Steering 11 to 14 V E26-1 (GND) lock motor operating HINT: When the steering lock is activated and the engine switch is turned on (IG), the steering lock motor activates to release the steering lock.
Page 372 STEERING LOCK SYSTEM > Steering Lock Motor Drive Power Circuit for Preparation Click here DESCRIPTION The main body ECU supplies the power to activate the motor of the steering lock actuator assembly. The diagnosis information of the steering lock ECU is transmitted to the intelligent tester via the certification ECU (smart key ECU assembly) as the steering lock ECU is not connected to the CAN communication system.
Page 373 YES: Steering lock/unlock signal received Lock/Unlock Steering lock command reception record/YES or NO: Steering lock/unlock signal not Receive received YES is displayed on the intelligent tester screen. GO TO ENTRY AND START SYSTEM (FOR START FUNCTION) (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here) 3.INSPECT STEERING LOCK ECU...
Page 374 19 (SLR+) - Body Always 10 kΩ or higher ground REPAIR OR REPLACE HARNESS OR CONNECTOR REPLACE MAIN BODY ECU 5.INSPECT STEERING LOCK ECU Move the shift lever to P. Turn the engine switch off. Open the driver side door. Measure the voltage according to the value(s) in the table below.
Page 375 REPAIR OR REPLACE HARNESS OR CONNECTOR REPLACE MAIN BODY ECU...
Page 376 STEERING LOCK SYSTEM > Steering Lock Motor Drive Power Circuit for Preparation Click here DESCRIPTION The main body ECU supplies the power to activate the motor of the steering lock actuator assembly. The diagnosis information of the steering lock ECU is transmitted to the intelligent tester via the certification ECU (smart key ECU assembly) as the steering lock ECU is not connected to the CAN communication system.
Page 377 YES: Steering lock/unlock signal received Lock/Unlock Steering lock command reception record/YES or NO: Steering lock/unlock signal not Receive received YES is displayed on the intelligent tester screen. GO TO ENTRY AND START SYSTEM (FOR START FUNCTION) (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here) 3.INSPECT STEERING LOCK ECU...
Page 378 19 (SLR+) - Body Always 10 kΩ or higher ground REPAIR OR REPLACE HARNESS OR CONNECTOR REPLACE MAIN BODY ECU 5.INSPECT STEERING LOCK ECU Move the shift lever to P. Turn the engine switch off. Open the driver side door. Measure the voltage according to the value(s) in the table below.
Page 379 REPAIR OR REPLACE HARNESS OR CONNECTOR REPLACE MAIN BODY ECU...
Page 380 STEERING LOCK SYSTEM > Unlock Position Sensor Signal Circuit for Preparation Click here DESCRIPTION The steering lock ECU sends an unlock position signal to the main body ECU. On receiving the signal, the main body ECU permits an engine start. This prevents the engine from being started with the steering locked.
Page 381 2.CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - MAIN BODY ECU) Disconnect the E26 steering lock ECU connector. Disconnect the E1 main body ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E26-4 (SLP1) - E1-...
Page 383 STEERING LOCK SYSTEM > Unlock Position Sensor Signal Circuit for Preparation Click here DESCRIPTION The steering lock ECU sends an unlock position signal to the main body ECU. On receiving the signal, the main body ECU permits an engine start. This prevents the engine from being started with the steering locked.
Page 384 2.CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - MAIN BODY ECU) Disconnect the E26 steering lock ECU connector. Disconnect the E1 main body ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E26-4 (SLP1) - E1-...
Page 386 STEERING LOCK SYSTEM > Power Source Circuit for Preparation Click here DESCRIPTION This circuit supplies power source voltage from the battery to terminal B of the steering lock ECU. The diagnosis information of the steering lock ECU is transmitted to the intelligent tester via the certification ECU (smart key ECU assembly) as the steering lock ECU is not connected to the CAN communication system.
Page 387 ground Always 11 to 14 V REPAIR OR REPLACE HARNESS OR CONNECTOR 3.CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - BODY GROUND) Disconnect the E26 steering lock ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection...
Page 389 STEERING LOCK SYSTEM > Power Source Circuit for Preparation Click here DESCRIPTION This circuit supplies power source voltage from the battery to terminal B of the steering lock ECU. The diagnosis information of the steering lock ECU is transmitted to the intelligent tester via the certification ECU (smart key ECU assembly) as the steering lock ECU is not connected to the CAN communication system.
Page 390 ground Always 11 to 14 V REPAIR OR REPLACE HARNESS OR CONNECTOR 3.CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - BODY GROUND) Disconnect the E26 steering lock ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection...
Page 392 HEATED STEERING WHEEL SYSTEM > PARTS LOCATION for Preparation Click here 1 / 1...
Page 394 HEATED STEERING WHEEL SYSTEM > SYSTEM DIAGRAM for Preparation Click here SYSTEM DIAGRAM...
Page 396 HEATED STEERING WHEEL SYSTEM > SYSTEM DESCRIPTION for Preparation Click here HEATED STEERING WHEEL SYSTEM The heated steering wheel system heats the steering wheel when the steering heater switch is operated. The heated steering wheel system uses a thermistor inside of the steering wheel to detect the heater temperature and maintain the set temperature.
Page 397 Signal Signal Name Function Signal Type Input of voltage corresponding Input Thermistor input Analog input to heater temperature Input of voltage corresponding Input Temperature setting input Analog input to temperature setting Input of power circuit's latch Input Switch operation input LOW/ HI input operation estimate signal Output...
Page 399 HEATED STEERING WHEEL SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING for Preparation Click here HINT: Use these procedures to troubleshoot the heated steering wheel system. *: Use the intelligent tester. 1.VEHICLE BROUGHT TO WORKSHOP NEXT 2.INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding.
Page 401 HEATED STEERING WHEEL SYSTEM > PROBLEM SYMPTOMS TABLE for Preparation Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Page 402 HEATED STEERING WHEEL SYSTEM > TERMINALS OF ECU for Preparation Click here CHECK HEATED STEERING WHEEL CONTROLLER HINT: Inspect the connectors from the back side while the connectors are connected. Measure the voltage and resistance according to the value(s) in the table below. Terminal No.
Page 404 HEATED STEERING WHEEL SYSTEM > FAIL-SAFE CHART for Preparation Click here MALFUNCTION DETECTION Operation when malfunction is detected Content Operation When thermistor trouble is detected Heater turns off When overheating (150°C (302°F)) of controller is detected Heater turns off When overvoltage (60 V) is detected Heater turns off When undervoltage (6 V) is detected Heater turns off...
Page 406 HEATED STEERING WHEEL SYSTEM > Steering Wheel does not Heat Up When Heated Steering Wheel Switch is Pressed for Preparation Click here DESCRIPTION The heater unit heats the steering wheel when the combination switch is operated. HINT: The heater unit is built into the steering wheel. As the steering wheel cannot be disassembled, replace the steering wheel when there is a malfunction in the heater unit.
Page 407 Go to step 3 2.INSPECT STEERING WHEEL ASSEMBLY (THERMISTOR) Disconnect the steering wheel controller connector. Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition 1 (TH2) - 3 (TH1) 25°C (77°F) 9.7 to 10.3 kΩ...
Page 408 Disconnect the E103 spiral cable connector. Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Condition Condition E102-1 (+) - E103- Always Below 1 Ω 1 (BTM) E102-11 (IN) - Always Below 1 Ω E103-3 (ETM) E103-2 (EHT) - Always...
Page 409 Text in Illustration Component without harness connected (Spiral Cable) Front view of harness connector (to Heated Steering Wheel Controller) REPLACE SPIRAL CABLE SUB-ASSEMBLY ( Click here) 6.CHECK COMBINATION SWITCH ASSEMBLY Disconnect the combination switch connector. Measure the voltage according to the value(s) in the table below. HINT: As the circuit has a diode, perform the measurement in diode test mode and make sure that the polarity is correct.
Page 411 STEERING SYSTEM > PRECAUTION for Preparation Click here 1.HANDLING PRECAUTIONS FOR STEERING SYSTEM Care must be taken when replacing parts. Incorrect replacement may affect the performance of the steering system and result in driving hazards. 2.HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM The vehicle is equipped with an SRS (Supplemental Restraint System).
Page 412 STEERING SYSTEM > PROBLEM SYMPTOMS TABLE for Preparation Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Page 414 STEERING SYSTEM > PROBLEM SYMPTOMS TABLE for Preparation Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Page 416 STEERING SYSTEM > ON-VEHICLE INSPECTION for Preparation Click here 1. INSPECT STEERING WHEEL FREE PLAY Stop the vehicle and align the tires facing straight ahead. Gently turn the steering wheel right and left by hand, and check the steering wheel free play. Maximum free play: 30 mm (1.18 in.) If the free play is more than the maximum, check the steering column, steering...
Page 417 STEERING SYSTEM > ADJUSTMENT for Preparation Click here 1. STEERING OFF CENTER ADJUSTMENT PROCEDURE HINT: This is the adjustment procedure for when the steering is off center. Check if the steering wheel is off center. Apply masking tape to the top center of the steering wheel and steering column upper cover.
Page 418 Draw a new line on the masking tape on the steering wheel as shown in the illustration. Measure the distance between the 2 lines on the masking tape on the steering wheel. vii. Convert the measured distance to steering angle. HINT: Measured distance of 1 mm (0.0394 in.) = Steering angle of approximately 1°.
Page 419 iii. Remove the RH and LH boot clips from the rack boots. Loosen the RH and LH lock nuts. Turn the RH and LH rack ends by the same amount (but in different directions) according to the steering angle. HINT: One 360°...
Page 420 STEERING COLUMN ASSEMBLY > COMPONENTS for Preparation Click here 1 / 4...
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Page 425 STEERING COLUMN ASSEMBLY > ON-VEHICLE INSPECTION for Preparation Click here 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL Disable the Autoaway/Return function by changing the customize parameter ( Click here). CAUTION: Record the current customize parameter setting (whether the Autoaway/Return function is enabled or disabled) in order to restore the current setting after finishing the operation.
Page 426 3. REMOVE UPPER STEERING COLUMN COVER Detach the 4 clips. Detach the claw to remove the upper steering column cover. 4. REMOVE DRIVER SIDE KNEE AIRBAG ASSEMBLY Remove the driver side knee airbag assembly ( Click here). 5. INSPECT TILT MOTOR Inspect the tilt motor.
Page 427 Disconnect connector B from the multiplex tilt and telescopic ECU. Apply battery voltage to the telescopic motor connector, and check the steering column operation. Measurement Condition Specified Condition Battery positive (+) → Terminal 2 (TEM+) Steering column Battery negative (-) → Terminal contracts 6 (TEM-) Battery negative (-) →...
Page 428 Install the 3 screws. Torque: 2.0 N*m{ 20 kgf*cm , 18 in.*lbf } HINT: Turn the steering wheel to the right and left as necessary to install the 2 screws. 10. INSPECT SRS WARNING LIGHT Inspect the SRS warning light ( Click here).
Page 430 STEERING COLUMN ASSEMBLY > REMOVAL for Preparation Click here CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing the steering column (Click here). 1. FRONT WHEELS FACING STRAIGHT AHEAD 2.
Page 431 5. REMOVE STEERING PAD Using a T30 "TORX" socket wrench, loosen the 2 screws until the groove along the screw circumference catches on the screw case. Pull out the steering pad from the steering wheel, as shown in the illustration. Then support the steering pad with one hand.
Page 432 7. REMOVE LOWER STEERING COLUMN COVER Remove the 3 screws. Detach the 2 claws to remove the lower steering column cover. NOTICE: Do not damage the tilt and telescopic switch. 8. REMOVE UPPER STEERING COLUMN COVER Detach the 4 clips. Detach the claw to remove the upper steering column cover.
Page 433 Using pliers, grip the claws of the clamp and remove the turn signal switch with spiral cable from the steering column. 11. REMOVE LOWER INSTRUMENT PANEL PAD SUB-ASSEMBLY LH Detach the 8 claws. Disconnect the connector and remove the panel pad. 12.
Page 434 Detach the clip and remove the cover. 13. REMOVE INSTRUMENT SIDE PANEL LH Place protective tape as shown in the illustration. Using a moulding remover, detach the 6 claws and remove the side panel. 14. REMOVE NO. 1 INSTRUMENT PANEL REGISTER ASSEMBLY Detach the 4 claws and remove the register.
Page 435 Detach the 5 claws. Disconnect the connectors and remove the switch hole base. 17. REMOVE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY Detach the 4 claws. Disconnect the connectors and remove the finish panel. 18. REMOVE FRONT DOOR SCUFF PLATE LH w/o Illumination: Detach the 7 claws and 4 clips, and remove the scuff plate.
Page 436 19. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY Remove the 2 screws. Detach the 3 claws. Remove the under cover and disconnect the connectors. 20. REMOVE COWL SIDE TRIM BOARD LH Remove the cap nut. Detach the 2 clips and remove the trim board. 21.
Page 437 Remove the 2 bolts. Detach the 16 claws. Detach the 2 claws and remove the sensor. Detach the 2 claws and disconnect the 2 control cables. Remove the finish panel and then disconnect the connectors.
Page 438 22. REMOVE INSTRUMENT PANEL BOX ASSEMBLY Detach the 5 claws. Remove the box and then disconnect the connectors. 23. REMOVE DRIVER SIDE KNEE AIRBAG ASSEMBLY Remove the 5 bolts and driver side knee airbag. Disconnect the connector. NOTICE: When handling the airbag connector, take care not to damage the airbag wire harness.
Page 439 25. REMOVE NO. 3 AIR DUCT SUB-ASSEMBLY Remove the clip. Detach the 2 claws and remove the duct. 26. REMOVE STEERING COLUMN ASSEMBLY Put matchmarks on the steering actuator and steering column. Remove the bolt. Remove the 4 nuts and steering column.
Page 440 27. DISCONNECT STEERING ACTUATOR ASSEMBLY While pushing the claws on both sides of the connector, move the lock in the direction of the arrow. Disconnect the connector. Hold the clamp with needle nose pliers, then insert a screwdriver and turn it in the direction shown in the illustration to remove the clamp of the steering column hole cover.
Page 441 Put matchmarks on the steering actuator and No. 2 steering intermediate shaft. Remove the bolt, and then pull out the actuator assembly toward the inside of the vehicle. 28. REMOVE STEERING COLUMN HOLE COVER SUB-ASSEMBLY Remove the 4 bolts, nut and steering column hole cover. 29.
Page 442 removed from without placing matchmarks due to the dust cover part labeled A. Therefore, do not remove the dust cover from the steering link.
Page 443 STEERING COLUMN ASSEMBLY > DISASSEMBLY for Preparation Click here 1. REMOVE STEERING LOCK ACTUATOR ASSEMBLY Using a center punch, mark the center of the 2 tapered-head bolts. Using a 3 to 4 mm (0.118 to 0.157 in.) drill, drill a hole in the 2 bolts. Using a screw extractor, remove the 2 bolts and the steering lock actuator assembly from the steering column assembly.
Page 445 STEERING COLUMN ASSEMBLY > INSPECTION for Preparation Click here 1. INSPECT STEERING COLUMN ASSEMBLY Measure the length of the steering main shaft. Standard length: 528 mm (1.73 ft.)
Page 446 STEERING COLUMN ASSEMBLY > REASSEMBLY for Preparation Click here 1. INSTALL MULTIPLEX TILT AND TELESCOPIC ECU Install the ECU with the 2 screws. Torque: 1.5 N*m{ 15 kgf*cm , 13 in.*lbf } Connect the 2 connectors. NOTICE: The connectors on both ends of the wire harness between the telescopic motor and ECU are the same shape.
Page 448 STEERING COLUMN ASSEMBLY > INSTALLATION for Preparation Click here 1. CONNECT NO. 2 STEERING INTERMEDIATE SHAFT Align the part of the dust cover labeled A with the No. 2 steering intermediate shaft, and install the No. 2 steering intermediate shaft assembly to the steering link assembly.
Page 449 1. Slowly turn the spiral case clockwise until it locks. 2. Turn the spiral case two turns counterclockwise from the lock position. 3. Align the slit of the sliding yoke with the alignment mark (▲). 4. Install the steering actuator assembly with the white line on the upper surface of the spiral case facing down.
Page 450 4. INSTALL STEERING COLUMN ASSEMBLY Install the steering column with the 4 nuts. Torque: 26 N*m{ 265 kgf*cm , 19 ft.*lbf } 5. INSTALL NO. 3 AIR DUCT SUB-ASSEMBLY Remove the clip. Detach the 2 claws and remove the duct. 6.
Page 451 Attach the 3 claws to connect the wiring harness protector and wire harness. 7. INSTALL DRIVER SIDE KNEE AIRBAG ASSEMBLY Connect the connector. NOTICE: When handling the airbag connector, take care not to damage the airbag wire harness. Install the driver side knee airbag with the 5 bolts. Torque: 10 N*m{ 102 kgf*cm , 7 ft.*lbf } 8.
Page 452 Attach the 2 claws to install the sensor. Attach the 2 claws to connect the 2 control cables. Attach the 16 claws to install the finish panel. Install the 2 bolts. Attach the 2 claws to close the hole cover.
Page 453 10. INSTALL COWL SIDE TRIM BOARD LH Attach the 2 clips to install the trim board. Install the cap nut. 11. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY Connect the connectors. Attach the 3 claws to install the under cover. Install the 2 screws.
Page 454 w/ Illumination: Connect the connector. Attach the 7 claws and 4 clips to install the scuff plate. 13. INSTALL NO. 3 INSTRUMENT PANEL REGISTER ASSEMBLY Attach the 5 claws to install the register. 14. INSTALL NO. 1 INSTRUMENT PANEL REGISTER ASSEMBLY Attach the 4 claws to install the register.
Page 455 15. INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY Connect the connectors. Attach the 4 claws to install the finish panel. 16. INSTALL NO. 1 SWITCH HOLE BASE Connect the connectors. Attach the 5 claws to install the switch hole base. 17. INSTALL INSTRUMENT SIDE PANEL LH Attach the 6 claws to install the side panel.
Page 456 Attach the clip to install the cover. Install the clip. 19. INSTALL LOWER INSTRUMENT PANEL PAD SUB-ASSEMBLY LH Attach the 9 claws to install the panel pad. 20. INSTALL COMBINATION SWITCH ASSEMBLY WITH SPIRAL CABLE SUB-ASSEMBLY Using pliers, grip the claws of the clamp and install the turn signal switch assembly with spiral cable sub-assembly to the steering column assembly with the clamp.
Page 457 21. INSTALL TILT AND TELESCOPIC SWITCH Attach the claw to install the switch. Connect the switch connector. 22. INSTALL UPPER STEERING COLUMN COVER Attach the claw to install the upper steering column cover. Attach the 4 clips to install the upper steering column cover onto the instrument cluster finish panel.
Page 458 NOTICE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected ( Click here). Rotate the spiral cable with steering sensor counterclockwise slowly by hand until it feels firm. CAUTION: Do not turn the spiral cable with steering sensor by the airbag wire harness. Rotate the spiral cable with steering sensor clockwise approximately 2.5 turns to align the marks.
Page 459 8.8 N*m{ 90 kgf*cm , 78 in.*lbf } 27. INSTALL LOWER NO. 2 STEERING WHEEL COVER Attach the 2 claws to install the cover. 28. INSTALL LOWER NO. 3 STEERING WHEEL COVER Attach the 2 claws to install the cover. 29.
Page 461 STEERING COLUMN ASSEMBLY > INSTALLATION for Preparation Click here 1. CONNECT NO. 2 STEERING INTERMEDIATE SHAFT Align the part of the dust cover labeled A with the No. 2 steering intermediate shaft, and install the No. 2 steering intermediate shaft assembly to the steering link assembly.
Page 462 If reinstalling the removed steering actuator assembly: 1. Slowly turn the spiral case clockwise until it locks. 2. Turn the spiral case two turns counterclockwise from the lock position. 3. Align the slit of the sliding yoke with the alignment mark (▲).
Page 463 4. INSTALL STEERING COLUMN ASSEMBLY Install the steering column with the 4 nuts. Torque: 26 N*m{ 265 kgf*cm , 19 ft.*lbf } 5. INSTALL NO. 3 AIR DUCT SUB-ASSEMBLY Remove the clip. Detach the 2 claws and remove the duct. 6.
Page 464 Attach the 3 claws to connect the wiring harness protector and wire harness. 7. INSTALL DRIVER SIDE KNEE AIRBAG ASSEMBLY Connect the connector. NOTICE: When handling the airbag connector, take care not to damage the airbag wire harness. Install the driver side knee airbag with the 5 bolts. Torque: 10 N*m{ 102 kgf*cm , 7 ft.*lbf } 8.
Page 465 Attach the 2 claws to install the sensor. Attach the 2 claws to connect the 2 control cables. Attach the 16 claws to install the finish panel. Install the 2 bolts. Attach the 2 claws to close the hole cover.
Page 466 10. INSTALL COWL SIDE TRIM BOARD LH Attach the 2 clips to install the trim board. Install the cap nut. 11. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY Connect the connectors. Attach the 3 claws to install the under cover. Install the 2 screws.
Page 467 w/ Illumination: Connect the connector. Attach the 7 claws and 4 clips to install the scuff plate. 13. INSTALL NO. 3 INSTRUMENT PANEL REGISTER ASSEMBLY Attach the 5 claws to install the register. 14. INSTALL NO. 1 INSTRUMENT PANEL REGISTER ASSEMBLY Attach the 4 claws to install the register.
Page 468 15. INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY Connect the connectors. Attach the 4 claws to install the finish panel. 16. INSTALL NO. 1 SWITCH HOLE BASE Connect the connectors. Attach the 5 claws to install the switch hole base. 17. INSTALL INSTRUMENT SIDE PANEL LH Attach the 6 claws to install the side panel.
Page 469 Attach the clip to install the cover. Install the clip. 19. INSTALL LOWER INSTRUMENT PANEL PAD SUB-ASSEMBLY LH Attach the 9 claws to install the panel pad. 20. INSTALL COMBINATION SWITCH ASSEMBLY WITH SPIRAL CABLE SUB-ASSEMBLY Using pliers, grip the claws of the clamp and install the turn signal switch assembly with spiral cable sub-assembly to the steering column assembly with the clamp.
Page 470 21. INSTALL TILT AND TELESCOPIC SWITCH Attach the claw to install the switch. Connect the switch connector. 22. INSTALL UPPER STEERING COLUMN COVER Attach the claw to install the upper steering column cover. Attach the 4 clips to install the upper steering column cover onto the instrument cluster finish panel.
Page 471 Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. NOTICE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected ( Click here). Rotate the spiral cable with steering sensor counterclockwise slowly by hand until it feels firm.
Page 472 Torque: 8.8 N*m{ 90 kgf*cm , 78 in.*lbf } 27. INSTALL LOWER NO. 2 STEERING WHEEL COVER Attach the 2 claws to install the cover. 28. INSTALL LOWER NO. 3 STEERING WHEEL COVER Attach the 2 claws to install the cover. 29.
Page 474 STEERING WHEEL > COMPONENTS for Preparation Click here 1 / 1...
Page 476 STEERING WHEEL > COMPONENTS for Preparation Click here 1 / 1...
Page 478 STEERING WHEEL > REMOVAL for Preparation Click here CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing the steering column (Click here). 1. FRONT WHEELS FACING STRAIGHT AHEAD 2.
Page 479 Using a T30 "TORX" socket wrench, loosen the 2 screws until the groove along the screw circumference catches on the screw case. Pull out the steering pad from the steering wheel, as shown in the illustration. Then support the steering pad with one hand. NOTICE: When removing the steering pad, do not pull the airbag wire harness.
Page 480 8. REMOVE STEERING WHEEL ASSEMBLY Remove the steering wheel set nut. Put matchmarks on the steering wheel and main shaft. Using SST, remove the steering wheel assembly. 09950-50013 (09951-05010, 09952-05010, 09953-05020, 09954-05011)
Page 481 STEERING WHEEL > REMOVAL for Preparation Click here CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing the steering column (Click here). 1. FRONT WHEELS FACING STRAIGHT AHEAD 2.
Page 482 Using a T30 "TORX" socket wrench, loosen the 2 screws until the groove along the screw circumference catches on the screw case. Pull out the steering pad from the steering wheel, as shown in the illustration. Then support the steering pad with one hand. NOTICE: When removing the steering pad, do not pull the airbag wire harness.
Page 484 STEERING WHEEL > DISASSEMBLY for Preparation Click here 1. REMOVE CRUISE CONTROL MAIN SWITCH Disconnect the connector. Remove the 2 screws and cruise control main switch. 2. REMOVE STEERING SHAKE DAMPER Remove the 2 screws and steering shake damper. 3. REMOVE STEERING WHEEL HEATER CONTROL ASSEMBLY (w/ Steering Heater) Disconnect the 2 connectors.
Page 485 5. REMOVE STEERING WHEEL BOSS LOWER COVER Remove the 2 screws, detach the 2 claws and remove the lower cover.
Page 486 STEERING WHEEL > INSPECTION for Preparation Click here CAUTION: The vehicle is equipped with an SRS (Supplemental Restraint System) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the PRECAUTION in the SRS (Click here).
Page 487 MODE switch 7 (AU2) - 8 (EAU) Below 2.5 Ω pushed ON Hook switch 7 (AU2) - 8 (EAU) 329 Ω pushed OFF Hook switch 7 (AU2) - 8 (EAU) 1000 Ω pushed Voice switch 7 (AU2) - 8 (EAU) 3110 Ω...
Page 488 pushed Volume- switch 6 (AU1) - 8 (EAU) 3110 Ω pushed No switch is 7 (AU2) - 8 (EAU) 100 kΩ pushed MODE switch 7 (AU2) - 8 (EAU) Below 2.5 Ω pushed On hook switch 7 (AU2) - 8 (EAU) 329 Ω...
Page 489 STEERING WHEEL > REASSEMBLY for Preparation Click here 1. INSTALL STEERING WHEEL BOSS LOWER COVER Attach the 2 claws to install the lower cover and install the 2 screws. 2. INSTALL STEERING PAD COVER Install the steering pad cover with the 4 screws. 3.
Page 490 Install the cruise control main switch with the 2 screws. Connect the connector.
Page 491 STEERING WHEEL > INSTALLATION for Preparation Click here 1. INSTALL STEERING WHEEL ASSEMBLY Align the matchmarks on the steering wheel assembly and steering main shaft assembly. Install the steering wheel assembly set nut. Torque: 50 N*m{ 510 kgf*cm , 37 ft.*lbf } 2.
Page 492 5. INSTALL LOWER NO. 2 STEERING WHEEL COVER Attach the 2 claws to install the cover. 6. INSTALL LOWER NO. 3 STEERING WHEEL COVER Attach the 2 claws to install the cover. 7. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL NOTICE: Reset the Autoaway/Return function setting to the previous condition by changing the customize parameter ( Click here).
Page 494 STEERING WHEEL > INSTALLATION for Preparation Click here 1. INSTALL STEERING WHEEL ASSEMBLY Align the matchmarks on the steering wheel assembly and steering main shaft assembly. Install the steering wheel assembly set nut. Torque: 50 N*m{ 510 kgf*cm , 37 ft.*lbf } 2.
Page 495 Attach the 2 claws to install the cover. 5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL NOTICE: Reset the AUTO TILT AWAY function setting to the previous condition by changing the customize parameter ( Click here). When disconnecting the cable, some systems need to be initialized after the cable is reconnected ( Click here).
Page 496 MULTIPLEX TILT AND TELESCOPIC ECU > COMPONENTS for Preparation Click here 1 / 3...
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Page 500 MULTIPLEX TILT AND TELESCOPIC ECU > REMOVAL for Preparation Click here 1. REMOVE STEERING COLUMN ASSEMBLY HINT: Refer to the instructions for removal of the steering column assembly ( Click here). 2. REMOVE STEERING LOCK ACTUATOR ASSEMBLY Using a center punch, mark the center of the 2 tapered-head bolts. Using a 3 to 4 mm (0.118 to 0.157 in.) drill, drill a hole in the 2 bolts.
Page 502 MULTIPLEX TILT AND TELESCOPIC ECU > INSTALLATION for Preparation Click here 1. INSTALL MULTIPLEX TILT AND TELESCOPIC ECU Install the ECU with the 2 screws. Torque: 1.5 N*m{ 15 kgf*cm , 13 in.*lbf } Connect the 2 connectors. NOTICE: The connectors on both ends of the wire harness between the telescopic motor and ECU are the same shape.
Page 504 MULTIPLEX TILT AND TELESCOPIC ECU > INSTALLATION for Preparation Click here 1. INSTALL MULTIPLEX TILT AND TELESCOPIC ECU Install the ECU with the 2 screws. Torque: 1.5 N*m{ 15 kgf*cm , 13 in.*lbf } Connect the 2 connectors. NOTICE: The connectors on both ends of the wire harness between the telescopic motor and ECU are the same shape.
Page 506 TILT AND TELESCOPIC MANUAL SWITCH > COMPONENTS for Preparation Click here 1 / 1...
Page 508 TILT AND TELESCOPIC MANUAL SWITCH > REMOVAL for Preparation Click here 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL Disable the AUTO TILT AWAY function by changing the customize parameter ( Click here). NOTICE: Record the current customize parameter setting (whether the AUTO TILT AWAY function is enabled or disabled) in order to restore the current setting after finishing the operation.
Page 509 3. REMOVE UPPER STEERING COLUMN COVER Detach the 4 clips. Detach the claw to remove the upper steering column cover. 4. REMOVE TILT AND TELESCOPIC MANUAL SWITCH Disconnect the switch connector. Using a screwdriver, detach the claw and pull out the switch. HINT: Tape the screwdriver tip before use.
Page 511 TILT AND TELESCOPIC MANUAL SWITCH > INSPECTION for Preparation Click here 1. INSPECT TILT AND TELESCOPIC MANUAL SWITCH Measure the resistance according to the value(s) in the table below. Standard Resistance: Specified Tester Connection Switch Condition Condition Tilt up 342 to 378 Ω 1890.5 to 2089.5 Tilt down Ω...
Page 512 TILT AND TELESCOPIC MANUAL SWITCH > INSTALLATION for Preparation Click here 1. INSTALL TILT AND TELESCOPIC MANUAL SWITCH Attach the claw to install the switch. Connect the switch connector. 2. INSTALL UPPER STEERING COLUMN COVER Attach the claw. Attach the 4 clips to install the upper steering column cover onto the instrument panel cluster finish panel.
Page 513 HINT: Turn the steering wheel to the right and left as necessary to install the 2 screws. 4. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL NOTICE: Reset the AUTO TILT AWAY function setting to the previous condition by changing the customize parameter ( Click here).
Page 514 HEATED STEERING WHEEL CONTROLLER > COMPONENTS for Preparation Click here 1 / 1...
Page 516 HEATED STEERING WHEEL CONTROLLER > REMOVAL for Preparation Click here CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing the steering wheel (Click here). 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Page 517 the screw circumference catches on the screw case. Pull out the steering pad from the steering wheel, as shown in the illustration. Then support the steering pad with one hand. NOTICE: When removing the steering pad, do not pull the airbag wire harness. Disconnect the horn connector.
Page 519 HEATED STEERING WHEEL CONTROLLER > INSTALLATION for Preparation Click here 1. INSTALL STEERING WHEEL HEATER CONTROL ASSEMBLY Install the controller with the 2 screws. Connect the 2 connectors. 2. INSTALL STEERING PAD ASSEMBLY Support the steering pad with one hand. Connect the 2 connectors to the steering pad.
Page 520 5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected ( Click here). 6. CHECK SRS WARNING LIGHT Inspect the SRS warning light ( Click here).
Page 521 STEERING LINKAGE > COMPONENTS for Preparation Click here 1 / 4...
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Page 526 STEERING LINKAGE > REMOVAL for Preparation Click here 1. PLACE FRONT WHEELS FACING STRAIGHT AHEAD 2. REMOVE ENGINE ASSEMBLY Remove the engine assembly (Click here). 3. REMOVE FRONT WHEELS 4. LOOSEN FRONT NO. 1 STABILIZER BRACKET LH Loosen the 2 bolts of the front stabilizer brackets. 5.
Page 527 7. REMOVE FRONT STABILIZER LINK ASSEMBLY RH Remove the bolt, nut and stabilizer link. HINT: If the ball joint turns together with the nut, use a 6 mm hexagon wrench to hold the stud. 8. REMOVE FRONT NO. 1 STABILIZER BRACKET LH Remove the 2 bolts and stabilizer bracket from the front frame assembly.
Page 528 Remove the front stabilizer bar from the frame assembly. 11. DISCONNECT NO. 2 STEERING INTERMEDIATE SHAFT Loosen the bolt and remove the No. 2 intermediate shaft. HINT: If the dust cover is removed/installed or replaced, place matchmarks on the dust cover and steering link. NOTICE: It is possible to install the intermediate shaft to the same position it was removed from without placing matchmarks due to the dust cover part labeled...
Page 529 15. REMOVE TIE ROD END SUB-ASSEMBLY RH HINT: Use the same procedures described for the LH side. 16. DISCONNECT PRESSURE FEED TUBE ASSEMBLY Remove the clamp and disconnect the pressure feed tube (return tube side) from the power steering link. Using a union nut wrench, disconnect the pressure feed tube (pressure feed tube side) from the power steering link.
Page 530 Remove the 3 bolts and suspension rebound stopper LH. 18. REMOVE FRONT SUSPENSION REBOUND STOPPER SUB-ASSEMBLY RH Remove the 3 bolts and suspension rebound stopper RH. 19. REMOVE POWER STEERING LINK ASSEMBLY Remove the 3 bolts, 3 nuts and power steering link.
Page 532 STEERING LINKAGE > REMOVAL for Preparation Click here 1. PLACE FRONT WHEELS FACING STRAIGHT AHEAD 2. REMOVE ENGINE ASSEMBLY Remove the engine assembly (Click here). 3. REMOVE FRONT WHEELS 4. LOOSEN FRONT NO. 1 STABILIZER BRACKET LH Loosen the 2 bolts of the front stabilizer brackets. 5.
Page 533 7. REMOVE FRONT STABILIZER LINK ASSEMBLY RH Remove the bolt, nut and stabilizer link. HINT: If the ball joint turns together with the nut, use a 6 mm hexagon wrench to hold the stud. 8. REMOVE FRONT NO. 1 STABILIZER BRACKET LH Remove the 2 bolts and stabilizer bracket from the front frame assembly.
Page 534 Remove the front stabilizer bar from the frame assembly. 11. DISCONNECT NO. 2 STEERING INTERMEDIATE SHAFT Loosen the bolt and remove the No. 2 intermediate shaft. HINT: If the dust cover is removed/installed or replaced, place matchmarks on the dust cover and steering link. NOTICE: It is possible to install the intermediate shaft to the same position it was removed from without placing matchmarks due to the dust cover part labeled...
Page 535 15. REMOVE TIE ROD END SUB-ASSEMBLY RH HINT: Use the same procedures described for the LH side. 16. DISCONNECT PRESSURE FEED TUBE ASSEMBLY Remove the clamp and disconnect the pressure feed tube (return tube side) from the power steering link. Using a union nut wrench, disconnect the pressure feed tube (pressure feed tube side) from the power steering link.
Page 536 Remove the 3 bolts and suspension rebound stopper LH. 18. REMOVE FRONT SUSPENSION REBOUND STOPPER SUB-ASSEMBLY RH Remove the 3 bolts and suspension rebound stopper RH. 19. REMOVE POWER STEERING LINK ASSEMBLY Remove the 3 bolts, 3 nuts and power steering link.
Page 538 STEERING LINKAGE > DISASSEMBLY for Preparation Click here 1. FIX POWER STEERING LINK ASSEMBLY Using SST, fix the power steering link. 09612-00012 HINT: Tape SST before use. NOTICE: When using a vise, do not overtighten it. 2. REMOVE STEERING RACK BOOT CLIP LH Using pliers, remove the steering rack boot clip.
Page 539 7. REMOVE STEERING RACK END SUB-ASSEMBLY Using a wrench, hold the steering rack (LH side). Using SST, remove the steering rack end (LH side) from the power steering rack. 09922-10010 HINT: Rotate SST in the direction shown in the illustration. Using SST, remove the steering rack end (RH side) from the power steering rack.
Page 540 STEERING LINKAGE > INSPECTION for Preparation Click here 1. INSPECT TIE ROD END SUB-ASSEMBLY LH Install the nut. Flip the ball joint stud back and forth 5 times as shown in the illustration. Using a torque wrench, turn the nut continuously at a rate of 3 to 5 seconds per turn and check the torque reading on the 5th turn.
Page 541 After setting the steering rack to the neutral point, align the dust cover rib with the power steering protrusion. HINT: Measure the standard preload at the steering rack neutral point. The steering control valve is fully turned when turned 3.14 times.
Page 542 STEERING LINKAGE > REASSEMBLY for Preparation Click here 1. INSTALL STEERING RACK END SUB-ASSEMBLY Temporarily install the 2 steering rack ends to the power steering rack. Fill up the ball joint of the steering rack ends with MP grease. Using SST, install the power steering rack end (RH side) to the power steering rack.
Page 543 Standard clearance: 3.0 mm (0.119 in.) or less NOTICE: Be careful not to damage the boot. 4. INSTALL STEERING RACK BOOT CLAMP LH HINT: Use the same procedures described for the RH side. 5. INSTALL STEERING RACK BOOT CLIP RH Using pliers, install the boot clip.
Page 545 STEERING LINKAGE > INSTALLATION for Preparation Click here 1. INSTALL POWER STEERING LINK ASSEMBLY Install the power steering link with the 3 bolts and 3 nuts. Torque: 120 N*m{ 1224 kgf*cm , 89 ft.*lbf } HINT: Hold the bolts and tighten the nuts to install the power steering link. NOTICE: Align the center bush so that the protrusion aligns with the longitudinal axis of the vehicle.
Page 546 Install the clamp and connect the pressure feed tube (return tube side) to the power steering link. Using a union nut wrench, connect the pressure feed tube (pressure feed tube side) to the power steering link. Torque: without union nut wrench: 44 N*m{ 449 kgf*cm , 32 ft.*lbf } with union nut wrench: 40 N*m{ 409 kgf*cm , 30 ft.*lbf }...
Page 547 Connect the tie rod end LH to the steering knuckle with the nut. Torque: 69 N*m{ 704 kgf*cm , 51 ft.*lbf } Install a new cotter pin. HINT: If the holes for the cotter pin are not aligned, tighten the nut up to another 60°. 8.
Page 548 11. TEMPORARILY INSTALL FRONT STABILIZER LINK ASSEMBLY RH Temporarily install the stabilizer link with the nut and bolt. Tighten the nut. Torque: 128 N*m{ 1305 kgf*cm , 94 ft.*lbf } 12. TEMPORARILY INSTALL FRONT STABILIZER LINK ASSEMBLY LH Temporarily install the stabilizer link with the nut and bolt. Tighten the nut.
Page 549 Torque: 87 N*m{ 887 kgf*cm , 64 ft.*lbf } NOTICE: Tighten the bolts in 3 steps, in the order shown in the illustration. 14. TIGHTEN FRONT NO. 1 STABILIZER BRACKET RH Tighten the 2 bolts. Torque: 87 N*m{ 887 kgf*cm , 64 ft.*lbf } NOTICE: Tighten the bolts in 3 steps, in the order shown in the illustration.
Page 550 NOTICE: Perform this procedure with all 4 wheels on the ground. 18. INSTALL ENGINE ASSEMBLY Install the engine assembly ( Click here). 19. BLEED POWER STEERING FLUID Check the fluid level. Jack up the front of the vehicle and support it with stands. Turn the steering wheel.
Page 551 With the engine stopped, check the fluid level in the reservoir. If necessary, add fluid. Fluid: ATF DEXRON II or III HINT: If the fluid is hot, check that the fluid level is within the HOT range. If the fluid is cold, check that the fluid level is within the COLD range.
Page 552 Adjust the front wheel alignment ( Click here). 26. ADJUST HEADLIGHT ASSEMBLY Adjust the headlight (Click here).
Page 553 STEERING LINKAGE > INSTALLATION for Preparation Click here 1. INSTALL POWER STEERING LINK ASSEMBLY Install the power steering link with the 3 bolts and 3 nuts. Torque: 120 N*m{ 1224 kgf*cm , 89 ft.*lbf } HINT: Hold the bolts and tighten the nuts to install the power steering link. NOTICE: Align the center bush so that the protrusion aligns with the longitudinal axis of the vehicle.
Page 554 Install the clamp and connect the pressure feed tube (return tube side) to the power steering link. Using a union nut wrench, connect the pressure feed tube (pressure feed tube side) to the power steering link. Torque: without union nut wrench: 44 N*m{ 449 kgf*cm , 32 ft.*lbf } with union nut wrench: 40 N*m{ 409 kgf*cm , 30 ft.*lbf }...
Page 555 Connect the tie rod end LH to the steering knuckle with the nut. Torque: 69 N*m{ 704 kgf*cm , 51 ft.*lbf } Install a new cotter pin. HINT: If the holes for the cotter pin are not aligned, tighten the nut up to another 60°. 8.
Page 556 11. TEMPORARILY INSTALL FRONT STABILIZER LINK ASSEMBLY RH Temporarily install the stabilizer link with the nut and bolt. Tighten the nut. Torque: 128 N*m{ 1305 kgf*cm , 94 ft.*lbf } 12. TEMPORARILY INSTALL FRONT STABILIZER LINK ASSEMBLY LH Temporarily install the stabilizer link with the nut and bolt. Tighten the nut.
Page 557 Torque: 87 N*m{ 887 kgf*cm , 64 ft.*lbf } NOTICE: Tighten the bolts in 3 steps, in the order shown in the illustration. 14. TIGHTEN FRONT NO. 1 STABILIZER BRACKET RH Tighten the 2 bolts. Torque: 87 N*m{ 887 kgf*cm , 64 ft.*lbf } NOTICE: Tighten the bolts in 3 steps, in the order shown in the illustration.
Page 558 NOTICE: Perform this procedure with all 4 wheels on the ground. 18. INSTALL ENGINE ASSEMBLY Install the engine assembly ( Click here). 19. BLEED POWER STEERING FLUID Check the fluid level. Jack up the front of the vehicle and support it with stands. Turn the steering wheel.
Page 559 With the engine stopped, check the fluid level in the reservoir. If necessary, add fluid. Fluid: ATF DEXRON II or III HINT: If the fluid is hot, check that the fluid level is within the HOT range. If the fluid is cold, check that the fluid level is within the COLD range.
Page 560 Adjust the front wheel alignment ( Click here). 26. ADJUST HEADLIGHT ASSEMBLY Adjust the headlight (Click here).

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