Toyota Prius 2010 Repair Manual
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Toyota Prius 2010 Repair Manual

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Table of Contents

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COMPONENTS
ILLUSTRATION
ILLUSTRATION
2010 Toyota Prius
Repair Manual

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Summary of Contents for Toyota Prius 2010

  • Page 1 COMPONENTS ILLUSTRATION ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 2 2010 Toyota Prius Repair Manual...
  • Page 3 14. REMOVE GLOVE COMPARTMENT DOOR 15. REMOVE CENTER INSTRUMENT CLUSTER FINISH PANEL GARNISH 16. REMOVE PASSENGER SEAT BELT WARNING LIGHT ASSEMBLY (a) Disengage the 2 claws to remove the passenger seat belt warning light assembly. 2010 Toyota Prius Repair Manual...
  • Page 4 2010 Toyota Prius Repair Manual...
  • Page 5 "OFF" comes on Battery negative (-) → M2-5 (P-AB) Text in Illustration Component without harness connected (Passenger Seat Belt Warning Light Assembly) If the result is not as specified, replace the passenger seat belt warning light assembly. 2010 Toyota Prius Repair Manual...
  • Page 6 When disconnecting the cable, some systems need to be initialized after the cable is reconnected 13. INSTALL REAR NO. 3 FLOOR BOARD 14. INSTALL REAR DECK FLOOR BOX 15. INSTALL REAR NO. 2 FLOOR BOARD 16. PERFORM DIAGNOSTIC SYSTEM CHECK 2010 Toyota Prius Repair Manual...
  • Page 7 (a) Perform a diagnostic system check 17. INSPECT SRS WARNING LIGHT (a) Inspect the SRS warning light 2010 Toyota Prius Repair Manual...
  • Page 8 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: PARTS LOCATION (2009 Prius) PARTS LOCATION ILLUSTRATION ILLUSTRATION 2004-2009 Toyota Prius Service Manual...
  • Page 9 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: PARTS LOCATION (2009 Prius) ILLUSTRATION 2004-2009 Toyota Prius Service Manual...
  • Page 10 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: PARTS LOCATION (2009 Prius) 2004-2009 Toyota Prius Service Manual...
  • Page 11 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: SYSTEM DIAGRAM (2009 Prius) SYSTEM DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 12 If the vehicle is equipped with a mobile communication system, refer to the precaution in the INTRODUCTION section When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected. SYSTEM NAME SEE PROCEDURE Power Window Control System HINT: d RH d RH 2004-2009 Toyota Prius Service Manual...
  • Page 13 SRS airbag system, perform troubleshooting. (b) When any of the airbags have deployed, replace the airbag sensors and check the installation condition. 3. SRS CONNECTORS (a) SRS connectors are located as shown in the following illustration. 2004-2009 Toyota Prius Service Manual...
  • Page 14 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: PRECAUTION (2009 Prius) 2004-2009 Toyota Prius Service Manual...

  • Page 15: Table Of Contents

    All connectors with an activation prevention mechanism contain a short spring plate. When these connectors are disconnected, the short spring plate creates a short circuit by automatically connecting the positive (+) and negative (-) terminals of the squib. 2004-2009 Toyota Prius Service Manual...

  • Page 16: Half Connection Prevention Mechanism

    (5) Connector lock mechanism (1): Locking the connector lock button connects the connector securely. (6) Connector lock mechanism (2): Both the primary lock with holder lances and the secondary lock with retainer prevent the connectors from being disconnected. 2004-2009 Toyota Prius Service Manual...

  • Page 17: Improper Connection Prevention Lock Mechanism

    Tape the screwdriver tip before use. (a) Release the lock button (yellow part) of the connector using a screwdriver. (b) Insert the screwdriver tip between the connector and the base, and then raise the connector. 2004-2009 Toyota Prius Service Manual...
  • Page 18 (b) Push down securely on the lock button (yellow part) of the connector. When locking, a click sound can be heard. 6. DISCONNECTION OF CONNECTOR FOR FRONT PASSENGER AIRBAG (INSTRUMENT PANEL WIRE SIDE) (a) Place a finger on the slider, slide the slider to release the lock, and then disconnect the connector. 2004-2009 Toyota Prius Service Manual...
  • Page 19 (a) Connect the connector as shown in the illustration. When locking, make sure that the slider returns to its original position and a click sound can be heard. HINT: When connecting, the slider will slide. Be sure not to touch the slider while connecting, as it may result in an insecure fit. 2004-2009 Toyota Prius Service Manual...
  • Page 20 (a) Pull the lever by pushing part A as shown in the illustration and disconnect the holder (with connectors). HINT: Perform the following procedures when replacing the holder. (b) Remove the holder. (1) Using a screwdriver, unlock the retainer. 2004-2009 Toyota Prius Service Manual...
  • Page 21 12. DISCONNECTION OF CONNECTOR FOR FRONT AIRBAG SENSOR (a) Push down the housing lock (white part) and slide the CPA (yellow part). At this time, the connector cannot be disconnected yet. 2004-2009 Toyota Prius Service Manual...
  • Page 22 (c) After disconnecting the connector, check that the position of the housing lock (white part) is as shown in the illustration. 13. CONNECTION OF CONNECTOR FOR FRONT AIRBAG SENSOR (a) Before connecting the connectors, check that the position of the housing lock (white part) is as shown in the illustration. 2004-2009 Toyota Prius Service Manual...
  • Page 23 (b) When the connector lock is released, the connectors are disconnected. HINT: Be sure to hold both outer flank sides. Holding the top and bottom will make disconnection difficult. 2004-2009 Toyota Prius Service Manual...
  • Page 24 (a) Connect the connector as shown in the illustration When locking, make sure that the outer returns to its original position and a click sound can be heard. HINT: When connecting, the outer will slide. Be sure not to hold the outer while connecting, as it may result in an insecure fit. 2004-2009 Toyota Prius Service Manual...
  • Page 25 The center airbag sensor receives signals from the deceleration sensors and the electrical safing sensors built into the center airbag sensor and the rear airbag sensor and determines whether or 2004-2009 Toyota Prius Service Manual...
  • Page 26 (a) The center airbag sensor determines whether or not ignition is necessary based on signals from the deceleration sensor and the front airbag sensor*. If the deceleration sensor, front airbag sensor* and safing sensor turn on simultaneously, current flows to the squibs to deploy the SRS as shown in the illustration below. 2004-2009 Toyota Prius Service Manual...
  • Page 27 (c) The center airbag sensor determines whether or not ignition is necessary based on signals from the rear airbag sensor. If the rear airbag sensor and safing sensor turn on simultaneously, current flows to the squib to deploy the SRS as shown in the illustration below. 2004-2009 Toyota Prius Service Manual...
  • Page 28 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: SYSTEM DESCRIPTION (2009 Prius) HINT: *: If the front seat side airbag deploys, the curtain shield airbag will also deploy, regardless of whether the signal is output from the rear airbag sensor. 2004-2009 Toyota Prius Service Manual...
  • Page 29 If the voltage is below 11 V, recharge or replace the battery before proceeding. NEXT CHECK MULTIPLEX COMMUNICATION SYSTEM* (a) Check the DTC Result: RESULT PROCEED TO DTC is not output DTC is output CHECK MULTIPLEX COMMUNICATION SYSTEM CHECK CAN COMMUNICATION SYSTEM* 2004-2009 Toyota Prius Service Manual...
  • Page 30 DTC is output CHECK CAN COMMUNICATION CIRCUIT WARNING LIGHT CHECK NEXT CHECK DTC (Present and Past DTCs)* (a) Check the DTC Result: RESULT PROCEED TO DTC is not output DTC is output PROBLEM SYMPTOMS TABLE DTC CHART 2004-2009 Toyota Prius Service Manual...
  • Page 31 NEXT REPAIR NEXT CLEAR DTC (Present and Past DTCs)* NEXT CHECK DTC (Present and Past DTCs)* (a) Check the DTC Result: RESULT PROCEED TO DTC is not output DTC is output Go to step 6 2004-2009 Toyota Prius Service Manual...
  • Page 32 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2009 Prius) CONFIRMATION TEST NEXT 2004-2009 Toyota Prius Service Manual...
  • Page 33 SRS Warning Light does not The SRS warning light does not come on with the power switch on (IG). Come ON SRS warning light is blink. TC and CG Terminal Circuit DTC cannot read. TC and CG Terminal Circuit 2004-2009 Toyota Prius Service Manual...
  • Page 34 Front passenger airbag (Front passenger side squib) A18-5 Steering pad (Driver side squib) A18-6 Steering pad (Driver side squib) A18-7 Steering pad (Driver side squib 2nd step) A18-8 Steering pad (Driver side squib 2nd step) 2004-2009 Toyota Prius Service Manual...
  • Page 35 Front seat side airbag RH (Side squib RH) A19-16 FSP+ Occupant classification ECU A19-19 ESCP Side airbag sensor RH A19-20 Rear airbag sensor RH A19-21 VUCP Side airbag sensor RH A19-22 VUPP Rear airbag sensor RH A19-24 FSP- Occupant classification ECU 2004-2009 Toyota Prius Service Manual...
  • Page 36 Techstream. If communication is normal when the tester is connected to another vehicle, inspect the DLC3 on the original vehicle. If communication is still not possible when the tool is connected to 2004-2009 Toyota Prius Service Manual...
  • Page 37 The SRS warning light goes off, and then comes on. This blinking pattern indicates a source voltage drop. The SRS warning light goes off 10 seconds after the source voltage returns to normal. (c) Review. (1) When the airbag system is normal: 2004-2009 Toyota Prius Service Manual...
  • Page 38 CAUTION: Never release the activation prevention mechanism on the squib connector even when inspecting with the squib disconnected. NOTICE: Do not release the activation prevention mechanism unless specially directed by the troubleshooting procedure. 2004-2009 Toyota Prius Service Manual...
  • Page 39 Do not release the activation prevention mechanism unless specially directed by the troubleshooting procedure. To prevent the terminal and the short spring from being damaged, always use a piece of paper of the same thickness as the male terminal. 2004-2009 Toyota Prius Service Manual...
  • Page 40 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DIAGNOSIS SYSTEM (2009 Prius) 2004-2009 Toyota Prius Service Manual...
  • Page 41 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DIAGNOSIS SYSTEM (2009 Prius) 2004-2009 Toyota Prius Service Manual...
  • Page 42 If 2 or more malfunctions are found, the indication begins with the lowest numbered DTC. If DTCs are indicated without connecting the terminals, proceed to the "TC and CG Terminal Circuit" 2004-2009 Toyota Prius Service Manual...
  • Page 43 DLC3. Also check that the normal system code is output within 1 second of the SRS warning light going off. If DTCs are not cleared, repeat these procedure until the DTCs are cleared. 3. CHECK DTC (USING TECHSTREAM) (a) Connect the Techstream to the DLC3. (b) Turn the power switch ON (IG). 2004-2009 Toyota Prius Service Manual...
  • Page 44 (a) Connect the Techstream to the DLC3. (b) Turn the power switch ON (IG). (c) Clear the DTCs by following the prompts on the Techstream screen. HINT: Refer to the Techstream operator's manual for further details. 2004-2009 Toyota Prius Service Manual...
  • Page 45 DTCs can be detected more sensitively in check mode than in normal diagnosis mode. Perform the check mode inspection when a malfunction in each squib circuit is suspected even after the normal system code is output through the normal diagnosis mode inspection. 2004-2009 Toyota Prius Service Manual...
  • Page 46 Set: Seat belt fastened NG: Data not determined Display type identification information/ Display Type LR: Display indicated by LH/RH Information DP: Display indicated by Driver/Passenger Number of past DTCs/ Number of Past DTC Min.: 0, Max.: 255 2004-2009 Toyota Prius Service Manual...
  • Page 47 B1803/51 Short to B+ in Driver Side Squib Circuit B1805/52 Short in Front Passenger Side Squib Circuit B1806/52 Open in Front Passenger Side Squib Circuit B1807/52 Short to GND in Front Passenger Side Squib Circuit 2004-2009 Toyota Prius Service Manual...
  • Page 48 B1826/56 Open in Front Passenger Side - Side Squib Circuit B1827/56 Short to GND in Front Passenger Side - Side Squib Circuit B1828/56 Short to B+ in Front Passenger Side - Side Squib Circuit B1900/73 Short in Front Driver Side Pretensioner Squib Circuit 2004-2009 Toyota Prius Service Manual...
  • Page 49 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DIAGNOSTIC TROUBLE CODE CHART (2009 Prius) 2004-2009 Toyota Prius Service Manual...
  • Page 50 (d) Turn the power switch ON (IG), and wait for at least 60 seconds. (e) Clear the DTCs (f) Turn the power switch OFF. (g) Turn the power switch ON (IG), and wait for at least 60 seconds. (h) Check for DTCs 2004-2009 Toyota Prius Service Manual...
  • Page 51 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1000/31: Center Airbag Sensor Assembly Malfunction (2009 Prius) DTC B1000/31 is not output. REPLACE CENTER AIRBAG SENSOR ASSEMBLY USE SIMULATION METHOD TO CHECK 2004-2009 Toyota Prius Service Manual...
  • Page 52 B+ signal from the front airbag main wire B1610/13 Front airbag sensor RH for 2 seconds. sensor RH Front airbag sensor RH malfunction Center airbag Center airbag sensor malfunction sensor WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 53 (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Check that the connectors are properly connected to the center airbag sensor and the front airbag sensor RH. The connectors are properly connected. CONNECT CONNECTOR 2004-2009 Toyota Prius Service Manual...
  • Page 54 (a) Disconnect the service wire from connector B. (b) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION F2-2 (+SR) - F2-1 (-SR) or higher CHECK ENGINE ROOM MAIN WIRE (SHORT) 2004-2009 Toyota Prius Service Manual...
  • Page 55 (c) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION F2-2 (+SR) - Body ground or higher F2-1 (-SR) - Body ground or higher CHECK ENGINE ROOM MAIN WIRE (TO GROUND) 2004-2009 Toyota Prius Service Manual...
  • Page 56 DTCs other than DTC B1610/13 and B1615/14 may be output at this time, but they are not related to this check. REPLACE FRONT AIRBAG SENSOR RH REPLACE CENTER AIRBAG SENSOR ASSEMBLY USE SIMULATION METHOD TO CHECK CHECK ENGINE ROOM MAIN WIRE (OPEN) 2004-2009 Toyota Prius Service Manual...
  • Page 57 (b) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION IJ2-1 (+SR) - IJ2-2 (-SR) or higher REPAIR OR REPLACE ENGINE ROOM MAIN WIRE REPAIR OR REPLACE INSTRUMENT PANEL WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 58 (a) Disconnect the engine room main wire connector from the instrument panel wire. (b) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION IJ2-1 (+SR) - Body ground or higher IJ2-2 (-SR) - Body ground or higher 2004-2009 Toyota Prius Service Manual...
  • Page 59 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1610/13: Front Airbag Sensor RH Circuit Malfunction (2009 Prius) REPAIR OR REPLACE ENGINE ROOM MAIN WIRE REPAIR OR REPLACE INSTRUMENT PANEL WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 60 B+ signal from the front airbag main wire B1615/14 Front airbag sensor LH sensor for 2 seconds. sensor LH Front airbag sensor LH malfunction Center airbag Center airbag sensor malfunction sensor WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 61 (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Check that the connectors are properly connected to the center airbag sensor and the front airbag sensor LH. The connectors are properly connected. CONNECT CONNECTOR 2004-2009 Toyota Prius Service Manual...
  • Page 62 (c) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION F1-2 (+SL) - F1-1 (-SL) Below 1 CHECK ENGINE ROOM MAIN WIRE (OPEN) CHECK FRONT AIRBAG SENSOR LH CIRCUIT (SHORT) 2004-2009 Toyota Prius Service Manual...
  • Page 63 (c) Measure the voltage of the wire harness side connector. Standard voltage: TESTER CONNECTION SPECIFIED CONDITION F1-2 (+SL) - Body ground Below 1 V F1-1 (-SL) - Body ground Below 1 V CHECK ENGINE ROOM MAIN WIRE (TO B+) 2004-2009 Toyota Prius Service Manual...
  • Page 64 (d) Turn the power switch ON (IG), and wait for at least 60 seconds. (e) Clear the DTCs (f) Turn the power switch OFF. (g) Turn the power switch ON (IG), and wait for at least 60 seconds. (h) Check for DTCs 2004-2009 Toyota Prius Service Manual...
  • Page 65 Do not forcibly insert a service wire into the terminals of the connector. (d) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION IJ2-3 (+SL) - IJ2-4(-SL) Below 1 REPAIR OR REPLACE ENGINE ROOM MAIN WIRE REPAIR OR REPLACE 2004-2009 Toyota Prius Service Manual...
  • Page 66 (e) Turn the power switch ON (IG). (f) Measure the voltage of the wire harness side connector. Standard voltage: TESTER CONNECTION SPECIFIED CONDITION IJ2-3 (+SL) - Body ground Below 1 V IJ2-4 (-SL) - Body ground Below 1 V 2004-2009 Toyota Prius Service Manual...
  • Page 67 (b) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION IJ2-3 (+SL) - Body ground or higher IJ2-4 (-SL) - Body ground or higher REPAIR OR REPLACE ENGINE ROOM MAIN WIRE REPAIR OR REPLACE INSTRUMENT PANEL WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 68 Center airbag ground or B+ short signal from side airbag sensor LH sensor for 2 B1620/21 sensor seconds Side airbag Side airbag sensor LH malfunction sensor LH Center airbag sensor malfunction WIRING DIAGRAM INSPECTION PROCEDURE 2004-2009 Toyota Prius Service Manual...

  • Page 69: Connectors

    (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Check that the connectors are properly connected to the center airbag sensor and side airbag sensor LH. Connectors are connected. CONNECT CONNECTOR 2004-2009 Toyota Prius Service Manual...
  • Page 70 (a) Disconnect the service wire from connector C. (b) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A17-19 (VUPD) - A17-21 (ESD) or higher REPAIR OR REPLACE FLOOR WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 71 (c) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A17-19 (VUPD) - Body ground or higher A17-21 (ESD) - Body ground or higher REPAIR OR REPLACE FLOOR WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 72 DTCs other than DTC B1620/21 and B1625/22 may be output at this time, but they are not related to this check. REPLACE SIDE AIRBAG SENSOR LH REPLACE CENTER AIRBAG SENSOR ASSEMBLY USE SIMULATION METHOD TO CHECK 2004-2009 Toyota Prius Service Manual...
  • Page 73 Center airbag ground or B+ short signal from side airbag sensor RH sensor for 2 B1625/22 sensor seconds Side airbag Side airbag sensor RH malfunction sensor RH Center airbag sensor malfunction WIRING DIAGRAM INSPECTION PROCEDURE 2004-2009 Toyota Prius Service Manual...

  • Page 74: Connectors

    (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Check that the connectors are properly connected to the center airbag sensor and side airbag sensor Connectors are connected. CONNECT CONNECTOR 2004-2009 Toyota Prius Service Manual...
  • Page 75 (a) Disconnect the service wire from connector C. (b) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A19-22 (VUPP) - A19-20 (ESP) or higher REPAIR OR REPLACE FLOOR WIRE NO. 2 2004-2009 Toyota Prius Service Manual...
  • Page 76 (c) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A19-22 (VUPP) - Body ground or higher A19-20 (ESP) - Body ground or higher REPAIR OR REPLACE FLOOR WIRE NO. 2 2004-2009 Toyota Prius Service Manual...
  • Page 77 DTCs other than DTC B1620/21 and B1625/22 may be output at this time, but they are not related to this check. REPLACE SIDE AIRBAG SENSOR RH REPLACE CENTER AIRBAG SENSOR ASSEMBLY USE SIMULATION METHOD TO CHECK 2004-2009 Toyota Prius Service Manual...
  • Page 78 Center airbag ground or B+ short signal from rear airbag sensor LH sensor for 2 B1630/23 sensor seconds Rear airbag Rear airbag sensor LH malfunction sensor LH Center airbag sensor malfunction WIRING DIAGRAM INSPECTION PROCEDURE 2004-2009 Toyota Prius Service Manual...

  • Page 79: Connectors

    (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Check that the connectors are properly connected to the center airbag sensor and rear airbag sensor Connectors are connected. CONNECT CONNECTOR 2004-2009 Toyota Prius Service Manual...
  • Page 80 (a) Disconnect the service wire from connector C. (b) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A17-20 (VUCD) - A17-22 (ESCD) or higher REPAIR OR REPLACE FLOOR WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 81 (c) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A17-20 (VUCD) - Body ground or higher A17-22 (ESCD) - Body ground or higher REPAIR OR REPLACE FLOOR WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 82 DTCs other than DTC B1630/23 and B1635/24 may be output at this time, but they are not related to this check. REPLACE REAR AIRBAG SENSOR LH REPLACE CENTER AIRBAG SENSOR ASSEMBLY USE SIMULATION METHOD TO CHECK 2004-2009 Toyota Prius Service Manual...
  • Page 83 Center airbag ground or B+ short signal from rear airbag sensor RH sensor for 2 B1635/24 sensor sensor seconds Rear airbag Rear airbag sensor RH malfunction sensor RH Center airbag sensor malfunction WIRING DIAGRAM INSPECTION PROCEDURE 2004-2009 Toyota Prius Service Manual...

  • Page 84: Connectors

    (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Check that the connectors are properly connected to the center airbag sensor and rear airbag sensor Connectors are connected. CONNECT CONNECTOR 2004-2009 Toyota Prius Service Manual...
  • Page 85 (a) Disconnect the service wire from connector C. (b) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A19-21 (VUCP) - A19-19 (ESCP) or higher REPAIR OR REPLACE FLOOR WIRE NO. 2 2004-2009 Toyota Prius Service Manual...
  • Page 86 (c) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A19-21 (VUCP) - Body ground or higher A19-19 (ESCP) - Body ground or higher REPAIR OR REPLACE FLOOR WIRE NO. 2 2004-2009 Toyota Prius Service Manual...
  • Page 87 DTCs other than DTC B1630/23 and B1635/24 may be output at this time, but they are not related to this check. REPLACE REAR AIRBAG SENSOR RH REPLACE CENTER AIRBAG SENSOR ASSEMBLY USE SIMULATION METHOD TO CHECK 2004-2009 Toyota Prius Service Manual...
  • Page 88 Center airbag sensor detects line short signal, open signal, short to B1650/32 system ground signal or short to B+ signal from occupant classification Center airbag system circuit for 2 seconds sensor Center airbag sensor malfunction WIRING DIAGRAM INSPECTION PROCEDURE 2004-2009 Toyota Prius Service Manual...
  • Page 89 (a) Turn the power switch ON (IG), and wait for at least 60 seconds. (b) Clear the DTCs (c) Turn the power switch OFF. (d) Turn the power switch ON (IG), and wait for at least 60 seconds. (e) Check for DTCs 2004-2009 Toyota Prius Service Manual...

  • Page 90: Connectors

    Do not forcibly insert a service wire into the terminals of the connector. (c) Measure the resistance of the wire harness side connector. Standard resistance: TERMINAL CONNECTION SPECIFIED CONDITION A19-16 (FSP+) - A19-24 (FSP-) Below 1 2004-2009 Toyota Prius Service Manual...
  • Page 91 (b) Turn the power switch ON (IG). (c) Measure the voltage of the wire harness side connector. Standard voltage: TERMINAL CONNECTION SPECIFIED CONDITION A19-16 (FSP+) - Body ground Below 1 V A19-24 (FSP-) - Body ground Below 1 V REPAIR OR 2004-2009 Toyota Prius Service Manual...
  • Page 92 Perform the inspection using parts from a normal vehicle when possible. (d) Connect the connectors to the center airbag sensor. (e) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds. 2004-2009 Toyota Prius Service Manual...
  • Page 93 (a) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds. (b) Connect the Techstream to the DLC3. (c) Turn the power switch ON (IG). (d) Using the Techstream, perform the zero point calibration "Zero Point Calibration is complete." is displayed on the tester. 2004-2009 Toyota Prius Service Manual...
  • Page 94 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1650/32: Occupant Classification System Malfunction (2009 Prius) NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform the sensitivity check Standard value: 27 to 33 kg (59.52 to 72.75 lb) NEXT 2004-2009 Toyota Prius Service Manual...
  • Page 95 B+ signal in the seat position airbag sensor circuit for 2 B1653/35 Seat position seconds. airbag sensor Seat position airbag sensor malfunction Center airbag Center airbag sensor assembly malfunction sensor assembly WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 96 (b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. (c) Check that the connectors are properly connected to the center airbag sensor assembly and the seat position airbag sensor. The connectors are properly connected. 2004-2009 Toyota Prius Service Manual...
  • Page 97 NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting. (b) Measure the resistance according to the value(s) in the table below. Standard resistance: TESTER CONNECTION CONDITION SPECIFIED CONDITION 2004-2009 Toyota Prius Service Manual...
  • Page 98 (b) Measure the resistance between the terminals of connector E according to the value(s) in the table below. Standard resistance: TESTER CONNECTION CONDITION SPECIFIED CONDITION A17-9 (DSP+) - A17-17 (DSP-) Always or higher CHECK FRONT SEAT INNER BELT ASSEMBLY LH (SHORT) CHECK SEAT POSITION AIRBAG SENSOR CIRCUIT (SHORT TO B+) 2004-2009 Toyota Prius Service Manual...
  • Page 99 Power switch ON (IG) Below 1 V A17-17 (DSP-) - Body ground Power switch ON (IG) Below 1 V CHECK FRONT SEAT INNER BELT ASSEMBLY LH (SHORT TO B+) CHECK SEAT POSITION AIRBAG SENSOR CIRCUIT (SHORT TO GROUND) 2004-2009 Toyota Prius Service Manual...
  • Page 100 (b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. (c) Turn the power switch ON (IG), and wait for at least 60 seconds. 2004-2009 Toyota Prius Service Manual...
  • Page 101 (c) Replace the seat position airbag sensor HINT: Perform inspection using parts from a normal vehicle if possible. NEXT CHECK CENTER AIRBAG SENSOR ASSEMBLY (a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. 2004-2009 Toyota Prius Service Manual...
  • Page 102 (a) Disconnect the floor wire connector from the front seat inner belt assembly LH. HINT: The service wire has already been inserted into connector "E". (b) Measure the resistance according to the value(s) in the table below. Standard resistance: TESTER CONNECTION CONDITION SPECIFIED CONDITION 2004-2009 Toyota Prius Service Manual...
  • Page 103 TESTER CONNECTION CONDITION SPECIFIED CONDITION S17-2 (LSP+) - S17-4 (LSP-) Always or higher REPLACE FRONT SEAT INNER BELT ASSEMBLY LH REPAIR OR REPLACE FLOOR WIRE CHECK FRONT SEAT INNER BELT ASSEMBLY LH (SHORT TO B+) 2004-2009 Toyota Prius Service Manual...
  • Page 104 Below 1 V S17-4 (LSP-) - Body ground Power switch ON (IG) Below 1 V REPLACE FRONT SEAT INNER BELT ASSEMBLY LH REPAIR OR REPLACE FLOOR WIRE CHECK FRONT SEAT INNER BELT ASSEMBLY LH (SHORT TO GROUND) 2004-2009 Toyota Prius Service Manual...
  • Page 105 Standard resistance: TESTER CONNECTION CONDITION SPECIFIED CONDITION S17-2 (LSP+) - Body ground Always or higher S17-4 (LSP-) - Body ground Always or higher REPLACE FRONT SEAT INNER BELT ASSEMBLY LH REPAIR OR REPLACE FLOOR WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 106 (Driver side seat belt the driver side seat belt buckle switch sensor for 2 seconds. buckle switch) Front seat inner belt LH malfunction Center airbag sensor Center airbag sensor malfunction WIRING DIAGRAM INSPECTION PROCEDURE PROCEDURE 2004-2009 Toyota Prius Service Manual...

  • Page 107: Connectors

    (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Check that the connectors are properly connected to the center airbag sensor and the front seat inner belt LH. Connectors are connected. CONNECT CONNECTOR CHECK FLOOR WIRE (OPEN) 2004-2009 Toyota Prius Service Manual...
  • Page 108 CHECK FLOOR WIRE (SHORT) (a) Disconnect the service wire from connector B. (b) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION S17-1 - S17-3 or higher REPAIR OR REPLACE FLOOR WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 109 90 seconds. (c) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION S17-1 - Body ground or higher S17-3 - Body ground or higher REPAIR OR REPLACE FLOOR WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 110 (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Replace the front seat inner belt LH HINT: Perform inspection using parts from a normal vehicle if possible. NEXT 2004-2009 Toyota Prius Service Manual...
  • Page 111 DTC B1655/37 is not output. HINT: DTCs other than DTC B1655/37 may be output at this time, but they are not related to this check. REPLACE CENTER AIRBAG SENSOR ASSEMBLY USE SIMULATION METHOD TO CHECK 2004-2009 Toyota Prius Service Manual...
  • Page 112 B+ signal from passenger B1660/43 ON / OFF Indicator airbag ON / OFF indicator circuit for 2 seconds light Front passenger seat belt warning light malfunction Center airbag sensor Center airbag sensor malfunction WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 113 PROCEED TO Always ON CHECK CONNECTION OF CONNECTOR CHECK CONNECTION OF CONNECTOR (a) Turn the power switch OFF. (b) Disconnect the cable from the negative (-) battery terminal and wait for at least 90 seconds 2004-2009 Toyota Prius Service Manual...
  • Page 114 (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Disconnect the connector from the front passenger seat belt warning light. (d) Using a service wire, connect terminals F11-1 (PAON) and F11-5 (P-AB) of connector C. 2004-2009 Toyota Prius Service Manual...
  • Page 115 A18-17 (P-AB) - A18-23 (PAON) or higher REPAIR OR REPLACE INSTRUMENT PANEL WIRE CHECK INSTRUMENT PANEL WIRE (TO B+) (a) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds. 2004-2009 Toyota Prius Service Manual...
  • Page 116 Standard resistance: TERMINAL CONNECTION SPECIFIED CONDITION A18-17 (P-AB) -Body ground or higher A18-23 (PAON) -Body ground or higher REPAIR OR REPLACE INSTRUMENT PANEL WIRE REPLACE FRONT PASSENGER AIRBAG ON/OFF INDICATOR LIGHT CHECK CONNECTION OF CONNECTOR 2004-2009 Toyota Prius Service Manual...
  • Page 117 (c) Measure the resistance of the wire harness side connector. Standard resistance: TERMINAL CONNECTION SPECIFIED CONDITION A18-23 (PAON) - A18-17 (P-AB) Below 1 REPAIR OR REPLACE INSTRUMENT PANEL WIRE CHECK INSTRUMENT PANEL WIRE (SHORT) (a) Disconnect the service wire from connector C. 2004-2009 Toyota Prius Service Manual...
  • Page 118 SPECIFIED CONDITION A18-23 (PAON) - Body ground Below 1 V A18-17 (P-AB) - Body ground Below 1 V REPAIR OR REPLACE INSTRUMENT PANEL WIRE CHECK INSTRUMENT PANEL WIRE (TO GROUND) (a) Turn the power switch OFF. 2004-2009 Toyota Prius Service Manual...
  • Page 119 (c) Measure the voltage of the wire harness side connector. Standard voltage: TERMINAL CONNECTION SPECIFIED CONDITION F11-6 (IG+) - Body ground 10 to 14 V REPAIR OR REPLACE POWER SOURCE CIRCUIT CHECK FRONT PASSENGER AIRBAG ON/OFF INDICATOR LIGHT (a) Turn the power switch OFF. 2004-2009 Toyota Prius Service Manual...
  • Page 120 (e) Turn the power switch ON (IG), and wait for at least 60 seconds. (f) Clear the DTCs (g) Turn the power switch OFF. (h) Turn the power switch ON (IG), and wait for at least 60 seconds. (i) Check for DTCs DTC B1660/43 is not output. HINT: 2004-2009 Toyota Prius Service Manual...
  • Page 121 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1660/43: Passenger Airbag ON/OFF Indicator Circuit Malfunction (2009 Prius) DTCs other than DTC B1660/43 may be output at this time, but they are not related to this check. REPLACE CENTER AIRBAG SENSOR ASSEMBLY USE SIMULATION METHOD TO CHECK 2004-2009 Toyota Prius Service Manual...
  • Page 122 Center airbag sensor Instrument panel wire Spiral cable Center airbag sensor receives a short to B+ signal from the driver side B1803/51 Steering pad (Driver squib circuit for 0.5 seconds. side squib) Center airbag sensor WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 123 After selecting the "CHECK MODE" (signal check), perform the simulation method by wiggling each connector of the airbag system or driving the vehicle on various types of roads PROCEDURE CHECK STEERING PAD (DRIVER SIDE SQUIB) (a) Turn the power switch OFF. 2004-2009 Toyota Prius Service Manual...
  • Page 124 DTC B1800, B1801, B1802, B1803 or 51 is not output. HINT: DTCs other than DTC B1800, B1801, B1802, B1803 or 51 may be output at this time, but they are not related to this check. REPLACE STEERING PAD CHECK CONNECTOR 2004-2009 Toyota Prius Service Manual...
  • Page 125 (d) Measure the voltage of the wire harness side connector. Standard voltage: TESTER CONNECTION SPECIFIED CONDITION D+ - Body ground Below 1 V D- - Body ground Below 1 V ( ) T it h OFF 2004-2009 Toyota Prius Service Manual...
  • Page 126 (i) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION D+ - D- or higher REPLACE CENTER AIRBAG SENSOR ASSEMBLY CHECK INSTRUMENT PANEL WIRE (a) Restore the released activation prevention mechanism of connector B to its original position. 2004-2009 Toyota Prius Service Manual...
  • Page 127 (i) Release the activation prevention mechanism built into connector B (j) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A22-1 (D+) - A22-2 (D-) or higher REPAIR OR REPLACE INSTRUMENT PANEL WIRE REPLACE SPIRAL CABLE 2004-2009 Toyota Prius Service Manual...
  • Page 128 Instrument panel wire Instrument panel wire Center airbag sensor receives a short to B+ signal from the front assembly B1808/52 passenger side squib circuit for 0.5 seconds. Front passenger airbag (Front passenger side squib) Center airbag sensor 2004-2009 Toyota Prius Service Manual...
  • Page 129 After selecting the "CHECK MODE" (signal check), perform the simulation method by wiggling each connector of the airbag system or driving the vehicle on various types of roads PROCEDURE CHECK FRONT PASSENGER AIRBAG ASSEMBLY (FRONT PASSENGER SIDE SQUIB) 2004-2009 Toyota Prius Service Manual...
  • Page 130 DTC B1805, B1806, B1807, B1808 or 52 is not output. HINT: DTCs other than DTC B1805, B1806, B1807, B1808 or 52 may be output at this time, but they are not related to this check. REPLACE FRONT PASSENGER AIRBAG ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 131 (b) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds. (c) Turn the power switch ON (IG). (d) Measure the voltage of the wire harness side connector. Standard voltage: 2004-2009 Toyota Prius Service Manual...
  • Page 132 TESTER CONNECTION SPECIFIED CONDITION A20-1 (P+) - A20-2 (P-) or higher REPLACE CENTER AIRBAG SENSOR ASSEMBLY CHECK INSTRUMENT PANEL WIRE ASSEMBLY (a) Restore the released activation prevention mechanism of connector B to its original position. 2004-2009 Toyota Prius Service Manual...
  • Page 133 (j) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION IH1-1 (P+) - IH1-2 (P-) or higher REPAIR OR REPLACE INSTRUMENT PANEL WIRE ASSEMBLY REPAIR OR REPLACE INSTRUMENT PANEL WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 134 Spiral cable Center airbag sensor receives a short circuit to B+ signal from the B1813/53 Steering pad (Driver side driver side squib 2nd step circuit for 0.5 seconds. squib 2nd step) Center airbag sensor WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 135 90 seconds. (c) Disconnect the connectors from the steering pad. (d) Connect SST to the spiral cable connector E (black connector). CAUTION: Never connect SST to the steering pad (driver side squib 2nd step) 2004-2009 Toyota Prius Service Manual...
  • Page 136 (c) Disconnect SST from the spiral cable. (d) Check that the spiral cable connector (on the steering pad side) is not damaged. Lock button is not disengaged, and claw of lock is not deformed or damaged. REPLACE SPIRAL CABLE 2004-2009 Toyota Prius Service Manual...
  • Page 137 (h) Release the activation prevention mechanism built into connector (i) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION D2+ - D2- or higher REPLACE CENTER AIRBAG SENSOR ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 138 (i) Release the activation prevention mechanism built into connector (j) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A22-4 (D2+) - A22-3 (D2-) or higher REPAIR OR REPLACE INSTRUMENT 2004-2009 Toyota Prius Service Manual...
  • Page 139 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1810/53-B1813/53: Short in Driver Side Squib 2nd Step Circuit (2009 Prius) INSTRUMENT PANEL WIRE ASSEMBLY REPLACE SPIRAL CABLE 2004-2009 Toyota Prius Service Manual...
  • Page 140 Center airbag sensor receives a short to B+ signal from the B1818/54 Front passenger airbag (Front front passenger side squib 2nd step circuit for 0.5 seconds. passenger side squib 2nd step) Center airbag sensor WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 141 (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Disconnect the connector to the front passenger airbag. (d) Connect SST (resistance 2.1 ) to connector E (black connector). CAUTION: 2004-2009 Toyota Prius Service Manual...
  • Page 142 (d) Check that the instrument panel wire assembly connector (on the front passenger airbag side) are not damaged. Lock button is not disengaged, and claw of lock is not deformed or damaged. REPAIR OR REPLACE INSTRUMENT PANEL WIRE ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 143 (h) Release the activation prevention mechanism built into connector (i) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A21-1 (P2+) - A21-2 (P2-) or higher REPLACE CENTER AIRBAG SENSOR 2004-2009 Toyota Prius Service Manual...
  • Page 144 (g) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (h) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION IH1-4 (P2-) - IH1-3 (P2+) Below 1 2004-2009 Toyota Prius Service Manual...
  • Page 145 (j) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION IH1-4 (P2-) - IH1-3 (P2+) or higher REPAIR OR REPLACE INSTRUMENT PANEL WIRE ASSEMBLY REPAIR OR REPLACE INSTRUMENT PANEL WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 146 B+ signal in the front driver side - side squib assembly LH (Front driver B1823/55 circuit for 0.5 seconds. side - side squib) Front driver side - side squib malfunction Center airbag sensor Center airbag sensor assembly malfunction assembly 2004-2009 Toyota Prius Service Manual...
  • Page 147 After selecting "check mode" (signal check), perform the simulation method by wiggling each connector of the airbag system or driving the vehicle on a city or rough road PROCEDURE CHECK FRONT SEAT SIDE AIRBAG ASSEMBLY LH (FRONT DRIVER SIDE - SIDE SQUIB) 2004-2009 Toyota Prius Service Manual...
  • Page 148 DTC B1820, B1821, B1822, B1823, or 55 is not output. HINT: Codes other than DTC B1820, B1821, B1822, B1823, and 55 may be output at this time, but they are not related to this check. REPLACE FRONT SEAT ASSEMBLY LH 2004-2009 Toyota Prius Service Manual...
  • Page 149 (2) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. (3) Measure the resistance according to the value(s) in the table below. Standard resistance: TESTER CONNECTION CONDITION SPECIFIED CONDITION BC1-1 (SFL-) - BC1-2 (SFL+) Always Below 1 2004-2009 Toyota Prius Service Manual...
  • Page 150 (b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. (c) Turn the power switch ON (IG), and wait for at least 60 seconds. (d) Clear the DTCs stored in the memory 2004-2009 Toyota Prius Service Manual...
  • Page 151 HINT: Codes other than DTC B1820, B1821, B1822, B1823, and 55 may be output at this time, but they are not related to this check. REPLACE CENTER AIRBAG SENSOR ASSEMBLY USE SIMULATION METHOD TO CHECK 2004-2009 Toyota Prius Service Manual...
  • Page 152 B+ signal in the front passenger side - side assembly RH (Front B1828/56 squib circuit for 0.5 seconds. passenger side - side squib) Front passenger side - side squib malfunction Center airbag sensor Center airbag sensor assembly malfunction assembly 2004-2009 Toyota Prius Service Manual...
  • Page 153 After selecting "check mode" (signal check), perform the simulation method by wiggling each connector of the airbag system or driving the vehicle on a city or rough road PROCEDURE CHECK FRONT SEAT SIDE AIRBAG ASSEMBLY RH (FRONT PASSENGER SIDE - SIDE SQUIB) 2004-2009 Toyota Prius Service Manual...
  • Page 154 DTC B1825, B1826, B1827, B1828, or 56 is not output. HINT: Codes other than DTC B1825, B1826, B1827, B1828, and 56 may be output at this time, but they are not related to this check. REPLACE FRONT SEAT ASSEMBLY RH 2004-2009 Toyota Prius Service Manual...
  • Page 155 (2) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. (3) Measure the resistance according to the value(s) in the table below. Standard resistance: TESTER CONNECTION CONDITION SPECIFIED CONDITION BG1-1 (SFR-) - BG1-2 (SFR+) Always Below 1 2004-2009 Toyota Prius Service Manual...
  • Page 156 (b) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. (c) Turn the power switch ON (IG), and wait for at least 60 seconds. (d) Clear the DTCs stored in the memory 2004-2009 Toyota Prius Service Manual...
  • Page 157 HINT: Codes other than DTC B1825, B1826, B1827, B1828, and 56 may be output at this time, but they are not related to this check. REPLACE CENTER AIRBAG SENSOR ASSEMBLY USE SIMULATION METHOD TO CHECK 2004-2009 Toyota Prius Service Manual...
  • Page 158 Curtain shield airbag LH Center airbag sensor receives a short to B+ signal from the B1833/57 (Driver side curtain shield driver side curtain shield squib circuit for 0.5 seconds. squib) Center airbag sensor WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 159 (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Disconnect the connector from the curtain shield airbag LH. (d) Connect SST (resistance 2.1 ) to connector C. CAUTION: 2004-2009 Toyota Prius Service Manual...
  • Page 160 (d) Check that the floor wire connector (on the curtain shield LH side) is not damaged. Lock button is not disengaged, and claw of lock is not deformed or damaged. REPAIR OR REPLACE FLOOR WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 161 (h) Release the activation prevention mechanism built into connector (i) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION C17-1 (IGL+) - C17-2 (IGL-) or higher REPAIR OR REPLACE FLOOR WIRE REPLACE CENTER 2004-2009 Toyota Prius Service Manual...
  • Page 162 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1830/57-B1833/57: Short in Driver Side Curtain Shield Squib Circuit (2009 Prius) AIRBAG SENSOR ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 163 Curtain shield airbag RH (Front Center airbag sensor receives a short to B+ signal from the B1838/58 passenger side curtain shield front passenger side curtain shield squib circuit for 0.5 seconds. squib) Center airbag sensor WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 164 (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Disconnect the connectors from the curtain shield airbag RH. (d) Connect SST (resistance 2.1 ) to connector C. CAUTION: 2004-2009 Toyota Prius Service Manual...
  • Page 165 (d) Check that the floor wire No. 2 connector (on the curtain shield airbag RH side) are not damaged. Lock button is not disengaged, and claw of lock is not deformed or damaged. REPAIR OR REPLACE FLOOR WIRE NO. 2 2004-2009 Toyota Prius Service Manual...
  • Page 166 (h) Release the activation prevention mechanism built into connector (i) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION C18-1 (IGR+) - C18-2 (IGR-) or higher REPAIR OR REPLACE FLOOR WIRE NO. 2 REPLACE CENTER 2004-2009 Toyota Prius Service Manual...
  • Page 167 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1835/58-B1838/58: Short in Front Passenger Side Curtain Shield Squib Circuit (20... AIRBAG SENSOR ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 168 Center airbag sensor receives a short circuit to B+ signal from Front seat outer belt LH (Driver B1903/73 the driver side front pretensioner squib circuit for 0.5 seconds. side front pretensioner squib) Center airbag sensor WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 169 ) to connector C. CAUTION: Never connect SST to the front seat outer belt LH (driver side front pretensioner squib) for measurement, as this may lead to a serious injury due to airbag deployment. NOTICE: 2004-2009 Toyota Prius Service Manual...
  • Page 170 (d) Check that the floor wire connector (on the driver side front seat outer belt) is not damaged. The lock button is not disengaged, or the claw of the lock is not deformed or damaged. REPAIR OR REPLACE FLOOR WIRE 2004-2009 Toyota Prius Service Manual...
  • Page 171 (h) Release the activation prevention mechanism built into connector (i) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION P22-1 (L+) - P22-2 (L-) or higher REPAIR OR REPLACE FLOOR WIRE REPLACE CENTER AIRBAG SENSOR ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 172 Center airbag sensor receives a short to B+ signal from the Front seat outer belt RH (Front B1908/74 front passenger side front pretensioner squib circuit for 0.5 passenger side front pretensioner seconds. squib) Center airbag sensor WIRING DIAGRAM 2004-2009 Toyota Prius Service Manual...
  • Page 173 (b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Disconnect the connectors from the front seat outer belt RH. (d) Connect SST (resistance 2.1 ) to connector C. 2004-2009 Toyota Prius Service Manual...
  • Page 174 (d) Check that the floor wire No. 2 connector (on the front seat outer belt RH side) is not damaged. Lock button is not disengaged, or the claw of the lock is not deformed or damaged. REPAIR OR REPLACE FLOOR WIRE NO. 2 2004-2009 Toyota Prius Service Manual...
  • Page 175 (g) Release the activation prevention mechanism built into connector (h) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION P23-1 (R+) - P23-2 (R-) or higher REPAIR OR REPLACE FLOOR WIRE NO. 2 REPLACE CENTER 2004-2009 Toyota Prius Service Manual...
  • Page 176 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1905/74-B1908/74: Short in Front Passenger Side Pretensioner Squib Circuit (2009 ... AIRBAG SENSOR ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 177 A malfunction in this circuit is not recorded in the center airbag sensor. The SRS warning light automatically goes off when the source voltage returns to normal. WIRING DIAGRAM INSPECTION PROCEDURE PROCEDURE CHECK WIRE HARNESS (CENTER AIRBAG SENSOR BATTERY) 2004-2009 Toyota Prius Service Manual...
  • Page 178 (a) Measure the resistance of the wire harness side connector. Standard resistance: TESTER CONNECTION SPECIFIED CONDITION A18-25 (E1) - Body ground Below 1 A18-26 (E2) - Body ground Below 1 REPAIR OR REPLACE HARNESS AND CONNECTOR 2004-2009 Toyota Prius Service Manual...
  • Page 179 (f) Operate all components of the electrical system (defogger, wiper, headlight, heater, blower, etc.) and check that the SRS warning light does not come on. SRS warning light does not come on. REPLACE CENTER AIRBAG SENSOR ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 180 When terminals TC and CG of the DLC3 are connected, the DTCs are communicated through SRS warning light blinking patterns. WIRING DIAGRAM INSPECTION PROCEDURE PROCEDURE INSPECT BATTERY (a) Measure the voltage of the battery. Standard voltage: 14 V 2004-2009 Toyota Prius Service Manual...
  • Page 181 (a) Disconnect the connector from the center airbag sensor. (b) Disconnect the connector from the steering pad connector. NEXT CHECK CENTER AIRBAG SENSOR ASSEMBLY (a) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds. 2004-2009 Toyota Prius Service Manual...
  • Page 182 (b) Turn the power switch ON (IG). (c) Measure the voltage of the wire harness side connector. Standard voltage: TESTER CONNECTION SPECIFIED CONDITION C10-21 - Body ground 8 to 14 V REPAIR OR REPLACE HARNESS AND CONNECTOR 2004-2009 Toyota Prius Service Manual...
  • Page 183 (a) Disconnect the A18 ECU connector with the C10 meter connector connected. (b) Turn the power switch ON (IG). (c) Check that the warning light illuminates for 6 seconds after turning the power switch ON (IG). 2004-2009 Toyota Prius Service Manual...
  • Page 184 REPAIR OR REPLACE HARNESS AND CONNECTOR REPLACE CENTER AIRBAG SENSOR ASSEMBLY (a) Replace the center airbag sensor. (b) Check that the SRS warning light illuminates normally. SRS warning light illuminates normally. REPLACE COMBINATION METER ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 185 CHECK CONNECTION OF CONNECTORS (a) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (b) Check that the connectors are properly connected to the center airbag sensor and combination meter. 2004-2009 Toyota Prius Service Manual...
  • Page 186 (b) Turn the power switch ON (IG). (c) Check that the warning light illuminates for 6 seconds after turning the power switch ON (IG). Warning light illuminates for 6 seconds after turning power switch ON (IG). REPLACE COMBINATION METER ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 187 SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: SRS Warning Light does not Come ON (2009 Prius) REPLACE CENTER AIRBAG SENSOR ASSEMBLY (a) Replace the center airbag sensor. (b) Check that the SRS warning light illuminates normally. SRS warning light illuminates normally. REPLACE COMBINATION METER ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 188 TC of the DLC3 or an internal ground short in each ECU. WIRING DIAGRAM INSPECTION PROCEDURE CAUTION: Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag deployment. Turn the power switch OFF. 2004-2009 Toyota Prius Service Manual...
  • Page 189 TESTER CONNECTION SPECIFIED CONDITION D1-13 (TC) - A18-15 (TC) Below 1 D1-4 (CG) - Body ground Below 1 A18-15 (TC) - Body ground or higher REPAIR OR REPLACE HARNESS AND CONNECTOR REPLACE CENTER AIRBAG SENSOR ASSEMBLY 2004-2009 Toyota Prius Service Manual...
  • Page 190 COMPONENTS ILLUSTRATION ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 191 ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 192 ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 193 2010 Toyota Prius Repair Manual...
  • Page 194 3. INSPECT CENTER AIRBAG SENSOR ASSEMBLY (for Vehicle Involved in Collision and Airbag is Deployed) (a) Replace the center airbag sensor assembly. HINT: The center airbag sensor assembly should be replaced after any of the airbags has deployed, as it has been subjected to an impact. 2010 Toyota Prius Repair Manual...
  • Page 195 11. REMOVE RADIO RECEIVER WITH BRACKET (w/o Navigation System) 12. REMOVE NAVIGATION RECEIVER WITH BRACKET (w/ Navigation System) 13. REMOVE NO. 1 SIDE DEFROSTER NOZZLE 14. REMOVE NO. 2 INSTRUMENT PANEL REGISTER 15. REMOVE GLOVE COMPARTMENT DOOR 2010 Toyota Prius Repair Manual...
  • Page 196 (c) Disconnect the connectors from the center airbag sensor assembly as shown in the illustration. NOTICE: When disconnecting any airbag connector, take care not to damage the airbag wire harness. (d) Remove the 3 bolts and center airbag sensor assembly. 2010 Toyota Prius Repair Manual...
  • Page 197 (d) Connect the connectors to the center airbag sensor assembly as shown in the illustration. NOTICE: When connecting any airbag connector, take care not to damage the airbag wire harness. (e) Check that the waterproof sheet is properly set. 2010 Toyota Prius Repair Manual...
  • Page 198 20. INSTALL REAR CONSOLE BOX ASSEMBLY HINT: Refer to the procedure from Install Rear Console Box Assembly 21. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected 2010 Toyota Prius Repair Manual...
  • Page 199 23. INSTALL REAR DECK FLOOR BOX 24. INSTALL REAR NO. 2 FLOOR BOARD (for Separate Type) 25. PERFORM DIAGNOSTIC SYSTEM CHECK (a) Perform a diagnostic system check 26. INSPECT SRS WARNING LIGHT (a) Inspect the SRS warning light 2010 Toyota Prius Repair Manual...
  • Page 200 COMPONENTS ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 201 Significant discoloration on the curtain shield airbag assemblies Cracks or other damage to the connector No defects are found. HINT: If any of the defects is found, replace the curtain shield airbag assembly with a new one. 2010 Toyota Prius Repair Manual...
  • Page 202 Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. (c) Using a screwdriver with the tip wrapped with protective tape, release the airbag connector lock and disconnect the curtain shield airbag connector. 2010 Toyota Prius Repair Manual...
  • Page 203 Protective Tape NOTICE: When disconnecting any airbag connector, take care not to damage the airbag wire harness. (d) Remove the 5 bolts. (e) Remove the 4 clips. (1) Using a clip remover, remove the 4 pins. 2010 Toyota Prius Repair Manual...
  • Page 204 Text in Illustration Clip Airbag Body Spacer (f) Disengage the 5 hooks to remove the curtain shield airbag assembly. (g) Remove the 4 clips and 4 spacers from the curtain shield airbag assembly. 2010 Toyota Prius Repair Manual...
  • Page 205 (c) Temporarily install the curtain shield airbag assembly with the 5 hooks. NOTICE: Do not twist the curtain shield airbag assembly when installing it. (d) Install the curtain shield airbag assembly to the body panel with 4 new clips and 4 new spacers. 2010 Toyota Prius Repair Manual...
  • Page 206 (1) Install 4 new pins as shown in the illustration. Text in Illustration Clip Airbag Body Spacer NOTICE: Make sure that the pins of the clips are pushed in firmly. (e) Install the 5 bolts. Torque: 9.8 N·m (100 kgf·cm, 87in·lbf) 2010 Toyota Prius Repair Manual...
  • Page 207 (g) Push in the lock to install the airbag connector. 2. INSTALL ROOF HEADLINING ASSEMBLY HINT: Refer to the procedure from Install Roof Headlining Assembly 3. PERFORM DIAGNOSTIC SYSTEM CHECK (a) Perform a diagnostic system check 2010 Toyota Prius Repair Manual...
  • Page 208 If any abnormality occurs with the airbag deployment, contact the Service Dept. of TOYOTA MOTOR SALES, U.S.A., INC. 2. DISPOSE OF CURTAIN SHIELD AIRBAG ASSEMBLY (When Installed in Vehicle) NOTICE: When disposing of the curtain shield airbag assembly, never use the customer's vehicle to deploy the airbag.
  • Page 209 NOTICE: To avoid damaging the SST connector or wire harness, do not lock the secondary lock of the twin lock. (3) Move SST at least 10 m (32.8 ft.) away from the rear side window. 2010 Toyota Prius Repair Manual...
  • Page 210 3. DISPOSE OF CURTAIN SHIELD AIRBAG ASSEMBLY (When Not Installed in Vehicle) NOTICE: Be sure to observe the following procedure when deploying the airbag. HINT: Prepare a battery as the power source to deploy the airbag. 2010 Toyota Prius Repair Manual...
  • Page 211 (c) Cut off the deployment section of the curtain shield airbag assembly. (d) Using braided wire, tie down the curtain shield airbag assembly to an unneeded tire. Text in Illustration Stripped Wire Section Wire Diameter Wire: 2010 Toyota Prius Repair Manual...
  • Page 212 NOTICE: The tire may be marked by the airbag deployment, so use an unneeded tire. (e) Install SST. (1) After connecting the following SST to each other, connect them to the 2010 Toyota Prius Repair Manual...
  • Page 213 (3) Tie the tires together with the 2 wires. CAUTION: Make sure that the wires are tight. Looseness in the wires results in the tires breaking loose when the airbag is deployed. (g) Install SST. (1) Connect the SST connector. 2010 Toyota Prius Repair Manual...
  • Page 214 Always wash your hands with water after completing the operation. (1) Remove the curtain shield airbag assembly from the tire. (2) Place the curtain shield airbag assembly in a plastic bag, tie it tightly, and dispose of it according to local regulations. 2010 Toyota Prius Repair Manual...
  • Page 215 COMPONENTS ILLUSTRATION ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 216 2010 Toyota Prius Repair Manual...
  • Page 217 (b) Visually check the front airbag sensors in undamaged areas for defects. (1) The defects are as follows: Cracks on the sensor housing Dents on the sensor housing Chips on the sensor housing Cracks or other damage to the connector Damage to the serial number 2010 Toyota Prius Repair Manual...
  • Page 218 No defects are found. HINT: If any of the defects is found or a front airbag sensor has detected a major collision, replace the front airbag sensor with a new one. 2010 Toyota Prius Repair Manual...
  • Page 219 (b) Check that the cable is disconnected from the negative (-) battery terminal. CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. (c) Disconnect the connector from the front airbag sensor. 2010 Toyota Prius Repair Manual...
  • Page 220 NOTICE: Do not push down the part (A) shown in the illustration when disconnecting. (3) After disconnecting the connector, check that the position of the white housing lock is correct as shown in the illustration. 2010 Toyota Prius Repair Manual...
  • Page 221 (d) Remove the bolt and front airbag sensor. NOTICE: Loosen the bolt while holding the front airbag sensor because the front airbag sensor pin (stopper) is easily damaged. 2010 Toyota Prius Repair Manual...
  • Page 222 Make sure that the pin (stopper) is securely inserted into the body hole. Tighten the bolt while holding the front airbag sensor because the front airbag sensor pin (stopper) is easily damaged. (d) Connect the connector to the front airbag sensor. 2010 Toyota Prius Repair Manual...
  • Page 223 (1) Before connecting the connector, check that the position of the white housing lock is correct as shown in the illustration. (2) Be sure to engage the connectors until they are locked (when locking, make sure that a click sound can be heard). 2010 Toyota Prius Repair Manual...
  • Page 224 5. INSTALL REAR NO. 2 FLOOR BOARD (for Separate Type) 6. INSTALL FRONT BUMPER ASSEMBLY HINT: Refer to the procedure from Install Front Bumper Assembly 7. PERFORM DIAGNOSTIC SYSTEM CHECK (a) Perform a diagnostic system check 8. INSPECT SRS WARNING LIGHT 2010 Toyota Prius Repair Manual...
  • Page 225 (a) Inspect the SRS warning light 2010 Toyota Prius Repair Manual...
  • Page 226 COMPONENTS ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 227 Deformation or cracks on the instrument panel or instrument panel reinforcement No defects are found. HINT: If any of the defects is found, replace the front passenger airbag assembly, instrument panel or instrument panel reinforcement with a new one. 2010 Toyota Prius Repair Manual...
  • Page 228 3. REMOVE UPPER INSTRUMENT PANEL ASSEMBLY 4. REMOVE FRONT PASSENGER AIRBAG ASSEMBLY CAUTION: When storing the front passenger airbag assembly, keep the airbag deployment side facing upward. (a) Remove the 2 screws and 2 clamps. 2010 Toyota Prius Repair Manual...
  • Page 229 5. REMOVE NO. 3 INSTRUMENT PANEL WIRE (a) Disengage the clamp. (b) Separate the No. 3 instrument panel wire from the front passenger airbag assembly clamp. 2010 Toyota Prius Repair Manual...
  • Page 230 (d) Disconnect the 2 airbag connectors to remove the No. 3 instrument panel wire from the front passenger airbag assembly. NOTICE: When disconnecting any airbag connector, take care not to damage the airbag wire harness. 2010 Toyota Prius Repair Manual...
  • Page 231 2. INSTALL FRONT PASSENGER AIRBAG ASSEMBLY (a) Engage the 3 hooks. (b) Push the front passenger airbag assembly to engage the 3 hooks. (c) Install the 2 screws to install the front passenger airbag assembly. 2010 Toyota Prius Repair Manual...
  • Page 232 5. INSTALL CENTER INSTRUMENT CLUSTER FINISH PANEL GARNISH HINT: Refer to the procedure from Install Center Instrument Cluster Finish Panel Garnish 6. PERFORM DIAGNOSTIC SYSTEM CHECK (a) Perform a diagnostic system check 2010 Toyota Prius Repair Manual...
  • Page 233 If any abnormality occurs with the airbag deployment, contact the Service Dept. of TOYOTA MOTOR SALES, U.S.A., INC. 2. DISPOSE OF FRONT PASSENGER AIRBAG ASSEMBLY (When Installed in Vehicle) NOTICE: When disposing of the front passenger airbag assembly, never use the customer's vehicle to deploy the airbag.
  • Page 234 (1) Slide the slider to release the lock, and then disconnect the connector. Text in Illustration Slider (f) Install SST. CAUTION: Check that there is no looseness in the front passenger airbag assembly and upper instrument panel assembly. 2010 Toyota Prius Repair Manual...
  • Page 235 Do not apply water etc. to a front passenger airbag assembly with a deployed airbag. Always wash your hands with water after completing the operation. HINT: The airbag is deployed as the LED of the SST activation switch comes on. 2010 Toyota Prius Repair Manual...
  • Page 236 (1) After connecting the following SST to each other, connect them to the front passenger airbag assembly. SST: 09082-00802 09082-10801 09082-30801 (d) Using braided wire, tie down the front passenger airbag assembly to an unneeded tire. 2010 Toyota Prius Repair Manual...
  • Page 237 (1) Position the front passenger airbag assembly inside the tire with the airbag deployment side facing inside. Minimum tire size: Must exceed the following dimensions Width: 185 mm (7.28 in.) Inner diameter: 360 mm (1.18 ft.) 2010 Toyota Prius Repair Manual...
  • Page 238 The tires may be damaged by the airbag deployment, so use an unneeded tire. (e) Place the tires. (1) Place at least 2 tires under the tire to which the front passenger airbag assembly is tied. 2010 Toyota Prius Repair Manual...
  • Page 239 (2) Check that no one is within a 10 m (32.8 ft.) radius of the tire to which the front passenger airbag assembly is tied. (3) Press the SST activation switch and deploy the airbag. CAUTION: 2010 Toyota Prius Repair Manual...
  • Page 240 Always wash your hands with water after completing the operation. (1) Remove the front passenger airbag assembly from the tire. (2) Place the front passenger airbag assembly in a plastic bag, tie it tightly, and dispose of it according to local regulations. 2010 Toyota Prius Repair Manual...
  • Page 241 Deformation on the installation part of the front seat side airbag assemblies Cracks or other damage to the wire harness or connector No defects are found. HINT: If any of the defects is found, replace the front seat assembly with a new one. 2010 Toyota Prius Repair Manual...
  • Page 242 If any abnormality occurs with the airbag deployment, contact the Service Dept. of TOYOTA MOTOR SALES, U.S.A., INC. 2. DISPOSE OF FRONT SEAT SIDE AIRBAG ASSEMBLY (When Installed in Vehicle) NOTICE: When disposing of the front seat side airbag assembly, never use the customer's vehicle to deploy the airbag.
  • Page 243 When disconnecting any airbag connector, take care not to damage the airbag wire harness. (1) Slide the slider to release the lock, and then disconnect the yellow airbag connector under the front seat assembly. Text in Illustration Slider (e) Install SST. CAUTION: 2010 Toyota Prius Repair Manual...
  • Page 244 Use gloves and safety glasses when handling a front seat side airbag assembly with a deployed airbag. Do not apply water etc. to a front seat side airbag assembly with a deployed airbag. Always wash your hands with water after completing the operation. HINT: 2010 Toyota Prius Repair Manual...
  • Page 245 CAUTION: When storing the front seat side airbag assembly, keep the airbag deployment side facing upward. (c) Using braided wire, tie down the front seat side airbag assembly to an unneeded tire. 2010 Toyota Prius Repair Manual...
  • Page 246 Area = 3.14 x (Diameter) (1) Install the 2 nuts to the front seat side airbag assembly. (2) Wind the wires around the stud bolts of the front seat side airbag assembly as shown in the illustration. 2010 Toyota Prius Repair Manual...
  • Page 247 NOTICE: The tire may be marked by the airbag deployment, so use an unneeded tire. (d) Install SST. (1) Connect the SST connector to the front seat side airbag assembly connector. SST: 09082-00820 2010 Toyota Prius Repair Manual...
  • Page 248 (3) Tie the tires together with the 2 wires. CAUTION: Make sure that the wires are tight. Looseness in the wires results in the tires breaking loose when the airbag is deployed. (f) Install SST. (1) Connect the SST connector. Text in Illustration 2010 Toyota Prius Repair Manual...
  • Page 249 Always wash your hands with water after completing the operation. (1) Remove the front seat side airbag assembly from the tire. (2) Place the front seat side airbag assembly in a plastic bag, tie it tightly, and dispose of it according to local regulations. 2010 Toyota Prius Repair Manual...
  • Page 250 COMPONENTS ILLUSTRATION ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 251 ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 252 ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 253 ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 254 2010 Toyota Prius Repair Manual...
  • Page 255 Deformation or cracks on the instrument panel or instrument panel reinforcement No defects are found. HINT: If any of the defects is found, replace the driver side knee airbag assembly, instrument panel or instrument panel reinforcement with a new one. 2010 Toyota Prius Repair Manual...
  • Page 256 11. REMOVE RADIO RECEIVER WITH BRACKET (w/o Navigation System) 12. REMOVE NAVIGATION RECEIVER WITH BRACKET (w/ Navigation System) 13. REMOVE NO. 1 SIDE DEFROSTER NOZZLE 14. REMOVE NO. 2 INSTRUMENT PANEL REGISTER 15. REMOVE GLOVE COMPARTMENT DOOR 2010 Toyota Prius Repair Manual...
  • Page 257 (b) Check that the cable is disconnected from the negative (-) battery terminal. CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. (c) Remove the 4 bolts. 2010 Toyota Prius Repair Manual...
  • Page 258 (d) Disengage the 2 claws to separate the DLC3. (e) Disengage the 6 claws and 4 guides to separate the driver side knee airbag assembly. (f) Disengage the clamp to separate the wire harness. 2010 Toyota Prius Repair Manual...
  • Page 259 (g) Using a screwdriver with the tip wrapped with protective tape, release the airbag connector lock. Text in Illustration Protective Tape (h) Disconnect the airbag connector to remove the driver side knee airbag assembly. NOTICE: When disconnecting any airbag connector, take care not to damage the airbag wire harness. 2010 Toyota Prius Repair Manual...
  • Page 260 (d) Push in the lock to install the airbag connector. (e) Temporarily install the driver side knee airbag assembly with the 6 claws and 4 guides. (f) Install the driver side knee airbag assembly with the 4 bolts. Torque: 10 N·m (102 kgf·cm, 7ft·lbf) 2010 Toyota Prius Repair Manual...
  • Page 261 11. INSTALL FRONT NO. 1 CONSOLE BOX INSERT 12. INSTALL NO. 2 CONSOLE BOX MOUNTING BRACKET 13. INSTALL ELECTRICAL KEY OSCILLATOR 14. INSTALL SHIFT LOCK CONTROL UNIT ASSEMBLY 15. INSTALL AIR CONDITIONING CONTROL ASSEMBLY 16. INSTALL GLOVE COMPARTMENT DOOR 2010 Toyota Prius Repair Manual...
  • Page 262 28. INSTALL REAR DECK FLOOR BOX 29. INSTALL REAR NO. 2 FLOOR BOARD (for Separate Type) 30. PERFORM DIAGNOSTIC SYSTEM CHECK (a) Perform a diagnostic system check 31. INSPECT SRS WARNING LIGHT (a) Inspect the SRS warning light 2010 Toyota Prius Repair Manual...
  • Page 263 If any abnormality occurs with the airbag deployment, contact the Service Dept. of TOYOTA MOTOR SALES, U.S.A., INC. 2. DISPOSE OF DRIVER SIDE KNEE AIRBAG ASSEMBLY (When Installed in Vehicle) NOTICE: When disposing of the driver side knee airbag assembly, never use the customer's vehicle to deploy the airbag.
  • Page 264 To avoid damaging the SST connector or wire harness, do not lock the secondary lock of the twin lock. (2) Move SST at least 10 m (32.8 ft.) away from the side window of the 2010 Toyota Prius Repair Manual...
  • Page 265 3. DISPOSE OF DRIVER SIDE KNEE AIRBAG ASSEMBLY (When Not Installed in Vehicle) NOTICE: Be sure to observe the following procedure when deploying the airbag. HINT: Prepare a battery as the power source to deploy the airbag. (a) Check the function of SST 2010 Toyota Prius Repair Manual...
  • Page 266 If the wire is too thin or an alternative object is used to tie down the driver side knee airbag assembly, it may snap when the airbag is deployed. Always use a wire for vehicle use with an area of at least 1.25 mm (0.0019 HINT: 2010 Toyota Prius Repair Manual...
  • Page 267 Make sure that the wires are tight. If there is slack in the wires, the driver side knee airbag assembly may break loose when the airbag is deployed. Always tie down the driver side knee airbag assembly with the airbag deployment side facing inside the tire as shown in the illustration. NOTICE: 2010 Toyota Prius Repair Manual...
  • Page 268 (3) Tie the tires together with the 2 wires. CAUTION: Make sure that the wires are tight. Looseness in the wires results in the tires breaking loose when the airbag is deployed. (f) Install SST. 2010 Toyota Prius Repair Manual...
  • Page 269 Always wash your hands with water after completing the operation. (1) Remove the driver side knee airbag assembly from the tire. (2) Place the driver side knee airbag assembly in a plastic bag, tie it 2010 Toyota Prius Repair Manual...
  • Page 270 2010 Toyota Prius Repair Manual...
  • Page 271 COMPONENTS ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 272 (b) Visually check for defects with the occupant classification ECU. (1) The defects are as follows: Cracks on the ECU housing Dents on the ECU housing Chips on the ECU housing Cracks or other damage to the connector Damage to the serial number 2010 Toyota Prius Repair Manual...
  • Page 273 No defects are found. HINT: If any of the defects is found, replace the occupant classification ECU with a new one. 2010 Toyota Prius Repair Manual...
  • Page 274 3. REMOVE OCCUPANT CLASSIFICATION ECU (a) Disconnect the 2 connectors. (b) Using a screwdriver with the tip wrapped with protective tape, disengage the claw and remove the occupant classification ECU. Text in Illustration Protective Tape 2010 Toyota Prius Repair Manual...
  • Page 275 3. ZERO POINT CALIBRATION AND SENSITIVITY CHECK (a) Perform zero point calibration and sensitivity check 4. PERFORM DIAGNOSTIC SYSTEM CHECK (a) Perform a diagnostic system check 5. INSPECT SRS WARNING LIGHT (a) Inspect the SRS warning light 2010 Toyota Prius Repair Manual...
  • Page 276 The front passenger seat is removed from the vehicle. The passenger airbag ON/OFF indicator ("OFF") comes on when the front passenger seat is not occupied. The vehicle is brought to the workshop for repair due to an accident or a collision. 2010 Toyota Prius Repair Manual...
  • Page 277 PARTS LOCATION ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 278 SYSTEM DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 279 (b) This system is mainly comprised of 4 occupant classification sensors that detect the load on the front passenger seat. The occupant classification ECU controls the system, and the passenger airbag ON/OFF indicator indicates the ON/OFF condition of the front passenger airbag and front seat belt pretensioner RH. 2010 Toyota Prius Repair Manual...
  • Page 280 Result: Result Proceed to DTC is output. DTC is not output. B GO TO PROBLEM SYMPTOMS TABLE DTC CHART NEXT CIRCUIT INSPECTION* NEXT REPAIR NEXT CLEAR DTCS (Present and History DTCs)* (a) Clear the DTCs. 2010 Toyota Prius Repair Manual...
  • Page 281 (a) Check the passenger airbag ON/OFF indicator condition. Result: Result Proceed to Passenger airbag ON/OFF indicator operates normally. Passenger airbag ON/OFF indicator ("OFF") and SRS warning light come on. GO TO DIAGNOSTIC TROUBLE CODE CHART CONFIRMATION TEST NEXT END 2010 Toyota Prius Repair Manual...
  • Page 282 (4) Connect the Techstream to the DLC3. (5) Turn the power switch on (IG). (6) Turn the Techstream on. (7) Enter the following menus: Body Electrical / Occupant Detection / Utility / Zero Point Calibration. 2010 Toyota Prius Repair Manual...
  • Page 283 (9) Confirm that sensitivity is within the specified range. Standard: 27 to 33 kg (59.5 to 72.8 lb) HINT: When performing sensitivity check, use a solid metal weight (the check result may not appear properly if a liquid weight is used). 2010 Toyota Prius Repair Manual...
  • Page 284 If sensitivity deviates from the specified range, retighten the bolts of the front passenger seat without deforming the seat rail. After performing this procedure, if sensitivity is not within the specified range, replace the Front seat cushion spring assembly. 2010 Toyota Prius Repair Manual...
  • Page 285 Inspect the fuses and relays related to this system before inspecting the suspected areas below. Occupant Classification System Symptom Suspected Area page The front passenger seat condition differs from the indication by the Trouble in Passenger Airbag passenger airbag ON/OFF indicator (DTC is not output). ON/OFF Indicator 2010 Toyota Prius Repair Manual...
  • Page 286 GR - W Power switch on (IG) 4.9 to 5.1 V W2-3 (SGD3) sensor LH power supply line W2-6 (SVC4) - V - BR Rear occupant classification Power switch on (IG) 4.9 to 5.1 V 2010 Toyota Prius Repair Manual...
  • Page 287 4.9 to 5.1 V W2-1 (SGD1) sensor LH power supply line W2-12 (SVC2) - Front occupant classification W - LG Power switch on (IG) 4.9 to 5.1 V W2-2 (SGD2) sensor RH power supply line 2010 Toyota Prius Repair Manual...
  • Page 288 When the occupant classification system has trouble, both the SRS warning light and passenger airbag ON/OFF indicator ("OFF") come on. In this case, check the DTCs in the airbag system first. 2010 Toyota Prius Repair Manual...
  • Page 289 2 seconds. HINT: Refer to the table in previous step regarding the passenger airbag ON/OFF indicator when the power switch is turned on (IG) and approximately 6 seconds elapse. 2010 Toyota Prius Repair Manual...
  • Page 290 (e) Enter the following menus: Body Electrical / Occupant Detection / Trouble Codes. (f) Clear the DTCs by following the prompts on the Techstream screen. HINT: Refer to the Techstream operator's manual for further details. 2010 Toyota Prius Repair Manual...
  • Page 291 Side Airbag Indicator Indicator Pretensioner RH Airbag RH Airbag Adult is ○ ○ ○ ○ seated Child is ○ ○ ○ seated Vacant ○ ○ Failure ○ ○ ○ HINT: ○: Deployable X: Not deployable 2010 Toyota Prius Repair Manual...
  • Page 292 Unset: The seat belt is not fastened NG: Data is not determined Passenger classification/ Passenger AM50: Adult (more than 54 kg (119.1 lb)) is AM50/AF05/Child/CRS/OFF Classification seated AF05: Adult (36 to 54 kg (79.4 to 119.1 lb)) is 2010 Toyota Prius Repair Manual...
  • Page 293 Max.: More than 37 kg (81.6 lb) Rear right sensor range information/ OK: Sensor range is -17 to 37 kg (-37.5 to 81.6 RR Sensor Range Info Min.: Less than -17 kg (-37.5 lb) Max.: More than 37 kg (81.6 lb) 2010 Toyota Prius Repair Manual...
  • Page 294 Weight Info (-37.5 to 81.6 lb) Max.: 37 kg (81.6 lb) Total weight information/ -68 to 128 kg Total Weight Min.: -68 kg (-149.9 lb) Information (-149.9 to 282.2 lb) Max.: 128 kg (282.2 lb) 2010 Toyota Prius Repair Manual...
  • Page 295 Diagnostic Tester Display Measurement Item/Range Normal Condition Note Number of present DTC recorded/ Number of Present DTC Min.: 0, Max.: 255 Number of past DTC recorded/ Number of Past Min.: 0, Max.: 255 2010 Toyota Prius Repair Manual...
  • Page 296 (Front occupant Sensor LH Collision Detection classification sensor LH) Front seat cushion spring Front Occupant Classification B1786 assembly (Front occupant Sensor RH Collision Detection classification sensor RH) B1787 Rear Occupant Classification Front seat cushion spring 2010 Toyota Prius Repair Manual...
  • Page 297 Open in Occupant Classification B1794 ECU Battery Positive Line 3. Wire harness 4. Occupant classification ECU Occupant Classification ECU B1795 Occupant classification ECU Malfunction Sleep Operation Failure of B1796 Occupant classification ECU Occupant Classification ECU 2010 Toyota Prius Repair Manual...
  • Page 298 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1771 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 299 (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Check that the connectors are properly connected to the occupant classification ECU and front seat inner belt assembly RH. 2010 Toyota Prius Repair Manual...
  • Page 300 CHECK FRONT SEAT WIRE RH (SHORT TO B+) (a) Connect the cable to the negative (-) battery terminal. (b) Turn the power switch on (IG). (c) Measure the voltage according to the value(s) in the table below. 2010 Toyota Prius Repair Manual...
  • Page 301 (b) Disconnect the cable from the negative (-) battery terminal. (c) Using SST, connect terminals 1 (BSW) and 2 (BGND) of connector C. NOTICE: Do not forcibly insert SST into the terminals of the connector when connecting. 2010 Toyota Prius Repair Manual...
  • Page 302 Front view of wire harness connector *6 Connector B (to Front Seat Inner Belt Assembly RH) *7 Connector C REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT) (a) Disconnect SST from connector C. 2010 Toyota Prius Repair Manual...
  • Page 303 Front view of wire harness connector (to Occupant Classification ECU) Connector B REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT TO GROUND) (a) Measure the resistance according to the value(s) in the table below. 2010 Toyota Prius Repair Manual...
  • Page 304 (d) Clear the DTCs stored in the occupant classification ECU (e) Clear the DTCs stored in the center airbag sensor assembly (f) Turn the power switch off. (g) Turn the power switch on (IG). (h) Check for DTCs DTC B1771 is not output. 2010 Toyota Prius Repair Manual...
  • Page 305 DTC B1771 is not output. HINT: Codes other than DTC B1771 may be output at this time, but they are not related to this check. REPLACE OCCUPANT CLASSIFICATION ECU REPLACE OCCUPANT CLASSIFICATION ECU (a) Turn the power switch off. 2010 Toyota Prius Repair Manual...
  • Page 306 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 307 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1780 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 308 (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Check that the connectors are properly connected to the occupant classification ECU and front occupant classification sensor LH. 2010 Toyota Prius Repair Manual...
  • Page 309 The terminals are not deformed or damaged. REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT TO B+) (a) Connect the cable to the negative (-) battery terminal. (b) Turn the power switch on (IG). 2010 Toyota Prius Repair Manual...
  • Page 310 (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Using SST, connect terminals 1 (SVC1) and 3 (SGD1), and connect terminals 2 (SIG1) and 3 (SGD1) of connector C. 2010 Toyota Prius Repair Manual...
  • Page 311 Front view of wire harness connector *6 Connector B (to Front Occupant Classification Sensor LH) *7 Connector C REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT) (a) Disconnect SST from connector C. 2010 Toyota Prius Repair Manual...
  • Page 312 Front Occupant Classification Sensor LH Occupant Classification ECU Front Seat Wire RH Front view of wire harness connector (to Occupant Classification ECU) Connector B REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT TO GROUND) 2010 Toyota Prius Repair Manual...
  • Page 313 (d) Clear the DTCs stored in the occupant classification ECU (e) Clear the DTCs stored in the center airbag sensor assembly (f) Turn the power switch off. (g) Turn the power switch on (IG). (h) Check for DTCs 2010 Toyota Prius Repair Manual...
  • Page 314 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 315 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1781 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 316 (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Check that the connectors are properly connected to the occupant classification ECU and front occupant classification sensor RH. 2010 Toyota Prius Repair Manual...
  • Page 317 The terminals are not deformed or damaged. REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT TO B+) (a) Connect the cable to the negative (-) battery terminal. (b) Turn the power switch on (IG). 2010 Toyota Prius Repair Manual...
  • Page 318 (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Using SST, connect terminals 1 (SVC2) and 3 (SGD2), and connect terminals 2 (SIG2) and 3 (SGD2) of connector C. 2010 Toyota Prius Repair Manual...
  • Page 319 Front view of wire harness connector *6 Connector B (to Front Occupant Classification Sensor RH) *7 Connector C REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT) (a) Disconnect SST from connector C. 2010 Toyota Prius Repair Manual...
  • Page 320 Front Occupant Classification Sensor RH Occupant Classification ECU Front Seat Wire RH Front view of wire harness connector (to Occupant Classification ECU) Connector B REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT TO GROUND) 2010 Toyota Prius Repair Manual...
  • Page 321 (d) Clear the DTCs stored in the occupant classification ECU (e) Clear the DTCs stored in the center airbag sensor assembly (f) Turn the power switch off. (g) Turn the power switch on (IG). (h) Check for DTCs 2010 Toyota Prius Repair Manual...
  • Page 322 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 323 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1782 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 324 (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Check that the connectors are properly connected to the occupant classification ECU and rear occupant classification sensor LH. 2010 Toyota Prius Repair Manual...
  • Page 325 CHECK FRONT SEAT WIRE RH (SHORT TO B+) (a) Connect the cable to the negative (-) battery terminal. (b) Turn the power switch on (IG). (c) Measure the voltage according to the value(s) in the table below. 2010 Toyota Prius Repair Manual...
  • Page 326 (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Using SST, connect terminals 1 (SVC3) and 3 (SGD3), and connect terminals 2 (SIG3) and 3 (SGD3) of connector C. NOTICE: 2010 Toyota Prius Repair Manual...
  • Page 327 Front view of wire harness connector *6 Connector B (to Rear Occupant Classification Sensor LH) *7 Connector C REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT) (a) Disconnect SST from connector C. 2010 Toyota Prius Repair Manual...
  • Page 328 Rear Occupant Classification Sensor LH Occupant Classification ECU Front Seat Wire RH Front view of wire harness connector (to Occupant Classification ECU) Connector B REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT TO GROUND) 2010 Toyota Prius Repair Manual...
  • Page 329 (d) Clear the DTCs stored in the occupant classification ECU (e) Clear the DTCs stored in the center airbag sensor assembly (f) Turn the power switch off. (g) Turn the power switch on (IG). (h) Check for DTCs 2010 Toyota Prius Repair Manual...
  • Page 330 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 331 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1783 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 332 (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Check that the connectors are properly connected to the occupant classification ECU and rear occupant classification sensor RH. 2010 Toyota Prius Repair Manual...
  • Page 333 CHECK FRONT SEAT WIRE RH (SHORT TO B+) (a) Connect the cable to the negative (-) battery terminal. (b) Turn the power switch on (IG). (c) Measure the voltage according to the value(s) in the table below. 2010 Toyota Prius Repair Manual...
  • Page 334 (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Using SST, connect terminals 1 (SVC4) and 3 (SGD4), and connect terminals 2 (SIG4) and 3 (SGD4) of connector C. NOTICE: 2010 Toyota Prius Repair Manual...
  • Page 335 Front view of wire harness connector *6 Connector B (to Rear Occupant Classification Sensor RH) *7 Connector C REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT) (a) Disconnect SST from connector C. 2010 Toyota Prius Repair Manual...
  • Page 336 Rear Occupant Classification Sensor RH Occupant Classification ECU Front Seat Wire RH Front view of wire harness connector (to Occupant Classification ECU) Connector B REPLACE FRONT SEAT WIRE RH CHECK FRONT SEAT WIRE RH (SHORT TO GROUND) 2010 Toyota Prius Repair Manual...
  • Page 337 (d) Clear the DTCs stored in the occupant classification ECU (e) Clear the DTCs stored in the center airbag sensor assembly (f) Turn the power switch off. (g) Turn the power switch on (IG). (h) Check for DTCs 2010 Toyota Prius Repair Manual...
  • Page 338 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 339 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1785 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 340 (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. REPLACE FRONT SEAT CUSHION SPRING ASSEMBLY 2010 Toyota Prius Repair Manual...
  • Page 341 REPLACE FRONT SEAT CUSHION SPRING ASSEMBLY (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Replace the front seat cushion spring assembly NEXT PERFORM ZERO POINT CALIBRATION 2010 Toyota Prius Repair Manual...
  • Page 342 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 343 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1786 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 344 (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. REPLACE FRONT SEAT CUSHION SPRING ASSEMBLY 2010 Toyota Prius Repair Manual...
  • Page 345 REPLACE FRONT SEAT CUSHION SPRING ASSEMBLY (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Replace the front seat cushion spring assembly NEXT PERFORM ZERO POINT CALIBRATION 2010 Toyota Prius Repair Manual...
  • Page 346 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 347 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1787 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 348 (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. REPLACE FRONT SEAT CUSHION SPRING ASSEMBLY 2010 Toyota Prius Repair Manual...
  • Page 349 REPLACE FRONT SEAT CUSHION SPRING ASSEMBLY (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Replace the front seat cushion spring assembly NEXT PERFORM ZERO POINT CALIBRATION 2010 Toyota Prius Repair Manual...
  • Page 350 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 351 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1788 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 352 (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. REPLACE FRONT SEAT CUSHION SPRING ASSEMBLY 2010 Toyota Prius Repair Manual...
  • Page 353 REPLACE FRONT SEAT CUSHION SPRING ASSEMBLY (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Replace the front seat cushion spring assembly NEXT PERFORM ZERO POINT CALIBRATION 2010 Toyota Prius Repair Manual...
  • Page 354 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 355 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1790 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 356 In the above case, hold the seat so that it does not fall down. Hold the seat only as necessary because holding the seat for a long period of time may cause seat rail deformation. PROCEDURE CHECK CONNECTORS (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. CAUTION: 2010 Toyota Prius Repair Manual...
  • Page 357 (e) Check that the terminals of connectors are not damaged. The terminals are not deformed or damaged. REPLACE WIRE HARNESS CHECK OCCUPANT CLASSIFICATION SYSTEM CIRCUIT (SHORT TO B+) (a) Connect the cable to the negative (-) battery terminal. 2010 Toyota Prius Repair Manual...
  • Page 358 Text in Illustration Occupant Classification ECU Center Airbag Sensor Assembly Front view of wire harness connector (to Occupant Classification ECU) Connector E CHECK NO. 2 FLOOR WIRE (SHORT TO B+) CHECK OCCUPANT CLASSIFICATION SYSTEM CIRCUIT (OPEN) 2010 Toyota Prius Repair Manual...
  • Page 359 *2 Center Airbag Sensor Assembly Front view of wire harness connector Front view of wire harness connector (to Center Airbag Sensor Assembly) (to Occupant Classification ECU) *5 Connector B *6 Connector E CHECK NO. 2 FLOOR WIRE (OPEN) 2010 Toyota Prius Repair Manual...
  • Page 360 W3-8 (FSR+) - W3-4 (FSR-) Always 1 MΩ or higher Text in Illustration Occupant Classification ECU Center Airbag Sensor Assembly Front view of wire harness connector (to Occupant Classification ECU) Connector E CHECK NO. 2 FLOOR WIRE (SHORT) 2010 Toyota Prius Repair Manual...
  • Page 361 (d) Turn the power switch on (IG). (e) Clear the DTCs stored in the occupant classification ECU (f) Clear the DTCs stored in the center airbag sensor assembly (g) Turn the power switch off. (h) Turn the power switch on (IG). 2010 Toyota Prius Repair Manual...
  • Page 362 (c) Clear the DTCs stored in the center airbag sensor assembly (d) Turn the power switch off. (e) Turn the power switch on (IG). (f) Using the Techstream, check for DTCs of the occupant classification ECU 2010 Toyota Prius Repair Manual...
  • Page 363 NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT CHECK NO. 2 FLOOR WIRE (SHORT TO B+) (a) Turn the power switch off. 2010 Toyota Prius Repair Manual...
  • Page 364 Power switch on (IG) Below 1 V Text in Illustration Occupant Classification ECU Center Airbag Sensor Assembly Front Seat Wire RH No. 2 Floor Wire Front view of wire harness connector (to Front Seat Wire RH) 2010 Toyota Prius Repair Manual...
  • Page 365 Front view of wire harness connector (to Center Airbag Sensor Assembly) (to Front Seat Wire RH) *7 Connector B *8 Connector C REPLACE NO. 2 FLOOR WIRE REPLACE FRONT SEAT WIRE RH CHECK NO. 2 FLOOR WIRE (SHORT) 2010 Toyota Prius Repair Manual...
  • Page 366 (to Front Seat Wire RH) Connector C REPLACE NO. 2 FLOOR WIRE REPLACE FRONT SEAT WIRE RH CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND) (a) Disconnect the front seat wire RH connector from the No. 2 floor wire. 2010 Toyota Prius Repair Manual...
  • Page 367 Center Airbag Sensor Assembly Front Seat Wire RH No. 2 Floor Wire Front view of wire harness connector (to Front Seat Wire RH) Connector C REPLACE NO. 2 FLOOR WIRE REPLACE FRONT SEAT WIRE RH 2010 Toyota Prius Repair Manual...
  • Page 368 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1793 is output, perform troubleshooting for the DTC. WIRING DIAGRAM 2010 Toyota Prius Repair Manual...
  • Page 369 CHECK CONNECTORS (a) Turn the power switch off. (b) Disconnect the cable from the negative (-) battery terminal. (c) Check that the connectors are properly connected to the 4 occupant classification sensors and occupant classification ECU. 2010 Toyota Prius Repair Manual...
  • Page 370 W2-5 (SVC3) - Body ground Power switch on (IG) Below 1 V W2-6 (SVC4) - Body ground Power switch on (IG) Below 1 V W2-11 (SVC1) - Body ground Power switch on (IG) Below 1 V 2010 Toyota Prius Repair Manual...
  • Page 371 W2-11 (SVC1) - Body ground Always 1 MΩ or higher W2-12 (SVC2) - Body ground Always 1 MΩ or higher Text in Illustration Front view of wire harness connector (to Occupant Classification ECU) REPLACE FRONT SEAT WIRE RH 2010 Toyota Prius Repair Manual...
  • Page 372 Always 1 MΩ or higher W2-5 (SVC3) - W2-11 (SVC1) Always 1 MΩ or higher W2-5 (SVC3) - W2-12 (SVC2) Always 1 MΩ or higher W2-6 (SVC4) - W2-11 (SVC1) Always 1 MΩ or higher 2010 Toyota Prius Repair Manual...
  • Page 373 DTC B1793 is not output. HINT: Codes other than DTC B1793 may be output at this time, but they are not related to this check. REPLACE FRONT SEAT CUSHION SPRING ASSEMBLY USE SIMULATION METHOD TO CHECK 2010 Toyota Prius Repair Manual...
  • Page 374 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 375 When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1794 is output, perform troubleshooting for the DTC. WIRING DIAGRAM INSPECTION PROCEDURE NOTICE: Inspect the fuses for circuits related to this system before performing the following inspection procedure. 2010 Toyota Prius Repair Manual...
  • Page 376 (f) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection Condition Specified Condition W3-1 (+B) - Body ground Always 11 to 14 V (g) Turn the power switch off. 2010 Toyota Prius Repair Manual...
  • Page 377 (k) Using the Techstream, check for DTCs of the occupant classification ECU DTC B1794 is not output. HINT: Codes other than DTC B1794 may be output at this time, but they are not related to this check. 2010 Toyota Prius Repair Manual...
  • Page 378 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 379 (a) Connect the cable to the negative (-) battery terminal. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG). (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT 2010 Toyota Prius Repair Manual...
  • Page 380 PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 381 (a) Connect the cable to the negative (-) battery terminal. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG). (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. 2010 Toyota Prius Repair Manual...
  • Page 382 NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 383 DTC. After the primary check period, the SRS warning light goes off. HINT: The primary check is performed for approximately 6 seconds after the power switch is turned on (IG). GO TO DTC CHART 2010 Toyota Prius Repair Manual...
  • Page 384 (b) Loosen the 4 installation bolts of the front seat assembly RH. (c) Tighten the 4 installation bolts of the front seat assembly RH to the specified torque. Torque: 37 N·m (374 kgf·cm, 27ft·lbf) NEXT PERFORM ZERO POINT CALIBRATION 2010 Toyota Prius Repair Manual...
  • Page 385 Set: The seat belt is fastened Passenger Buckle SW Unset/Set Unset: The seat belt is not fastened NG: Data is not determined The Techstream display changes correctly in accordance with the operation of the buckle switch. 2010 Toyota Prius Repair Manual...
  • Page 386 (a) Connect the cable to the negative (-) battery terminal. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG). (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. 2010 Toyota Prius Repair Manual...
  • Page 387 (a) Connect the connector to the occupant classification ECU. (b) Replace the front seat inner belt assembly RH NEXT PERFORM ZERO POINT CALIBRATION (a) Connect the cable to the negative (-) battery terminal. (b) Connect the Techstream to the DLC3. 2010 Toyota Prius Repair Manual...
  • Page 388 (d) Using the Techstream, perform Zero Point Calibration "Zero Point Calibration is complete." is displayed. NEXT PERFORM SENSITIVITY CHECK (a) Using the Techstream, perform Sensitivity Check Standard: 27 to 33 kg (59.5 to 72.8 lb) NEXT 2010 Toyota Prius Repair Manual...
  • Page 389 COMPONENTS ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 390 REMOVAL 1. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY 2. REMOVE PRE-COLLISION SYSTEM CANCEL SWITCH ASSEMBLY (a) Disengage the 2 claws and remove the pre-collision system cancel switch assembly. 2010 Toyota Prius Repair Manual...
  • Page 391 (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Switch Condition Specified Condition Pressed Below 1 Ω 1 - 2 Not pressed 10 kΩ or higher Text in Illustration Component without harness connected (Pre-collision Brake Cancel Switch Assembly) 2010 Toyota Prius Repair Manual...
  • Page 392 INSTALLATION 1. INSTALL PRE-COLLISION SYSTEM CANCEL SWITCH ASSEMBLY (a) Engage the 2 claws to install the pre-collision system cancel switch assembly. 2. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY 2010 Toyota Prius Repair Manual...
  • Page 393 COMPONENTS ILLUSTRATION ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 394 ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 395 2010 Toyota Prius Repair Manual...
  • Page 396 (b) Visually check the rear airbag sensors in undamaged areas for defects. (1) The defects are as follows: Cracks on the sensor housing Dents on the sensor housing Chips on the sensor housing Cracks or other damage to the connector Damage to the serial number 2010 Toyota Prius Repair Manual...
  • Page 397 No defects are found. HINT: If any of the defects is found or a rear airbag sensor has detected a major collision, replace the rear airbag sensor with a new one. 2010 Toyota Prius Repair Manual...
  • Page 398 10. REMOVE REAR NO. 2 FLOOR BOARD SUB-ASSEMBLY (for RH Side) 11. REMOVE REAR NO. 1 FLOOR BOARD (for RH Side) 12. REMOVE REAR FLOOR BOARD SPACER (for RH Side) 13. REMOVE NO. 1 HYBRID BATTERY INTAKE DUCT (for RH Side) 2010 Toyota Prius Repair Manual...
  • Page 399 When disconnecting any airbag connector, take care not to damage the airbag wire harness. (1) Push and hold the white housing lock, and slide the yellow outer connector locking sleeve. Text in Illustration *1 Housing Lock *2 Outer Connector Locking Sleeve 2010 Toyota Prius Repair Manual...
  • Page 400 (2) Push and hold the white housing lock again, and slide the yellow outer connector locking sleeve to disconnect the connector. (d) Remove the nut and rear airbag sensor. NOTICE: Loosen the nut while holding the rear airbag sensor because the rear airbag sensor pin (stopper) is easily damaged. 2010 Toyota Prius Repair Manual...
  • Page 401 Tighten the nut while holding the rear airbag sensor because the rear airbag sensor pin (stopper) is easily damaged. (d) Connect the connector to the rear airbag sensor. NOTICE: When connecting any airbag connector, take care not to damage the airbag wire harness. 2010 Toyota Prius Repair Manual...
  • Page 402 6. INSTALL REAR NO. 1 FLOOR BOARD SUB-ASSEMBLY (for RH Side) 7. INSTALL REAR SIDE SEATBACK ASSEMBLY for LH Side: for RH Side: 8. INSTALL REAR DOOR SCUFF PLATE 9. INSTALL REAR SEAT CUSHION ASSEMBLY 10. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 2010 Toyota Prius Repair Manual...
  • Page 403 12. INSTALL REAR DECK FLOOR BOX 13. INSTALL REAR NO. 2 FLOOR BOARD (for Separate Type) 14. PERFORM DIAGNOSTIC SYSTEM CHECK (a) Perform a diagnostic system check 15. INSPECT SRS WARNING LIGHT (a) Inspect the SRS warning light 2010 Toyota Prius Repair Manual...
  • Page 404 COMPONENTS ILLUSTRATION ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 405 2010 Toyota Prius Repair Manual...
  • Page 406 (a) Remove the bolt and 2 nuts. (b) Disconnect each connector and remove the ECU integration box RH. 7. REMOVE SEAT BELT CONTROL ECU (a) Disengage the 2 claws and remove the seat belt control ECU. 2010 Toyota Prius Repair Manual...
  • Page 407 When disconnecting the cable, some systems need to be initialized after the cable is reconnected 5. INSTALL REAR NO. 3 FLOOR BOARD 6. INSTALL REAR DECK FLOOR BOX 7. REMOVE REAR NO. 2 FLOOR BOARD (for Separate Type) 8. INSPECT SRS WARNING LIGHT (a) Inspect the SRS warning light 2010 Toyota Prius Repair Manual...
  • Page 408 COMPONENTS ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 409 Dents on the sensor housing Chips on the sensor housing Cracks or other damage to the connector No defects are found. HINT: If any of the defects is found, replace the seat position sensor with a new one. 2010 Toyota Prius Repair Manual...
  • Page 410 (c) Using a T30 "TORX" socket wrench, remove the "TORX" screw and seat position sensor with the seat slide position sensor protector. (d) Remove the seat position sensor from the seat slide position sensor protector as shown in the illustration. 2010 Toyota Prius Repair Manual...
  • Page 411 Be sure that the clearance between the seat position sensor and seat rail is between 0.6 mm (0.0236 in.) and 2.0 mm (0.0787 in.). (c) Using a T30 "TORX" socket wrench, tighten the "TORX" screw to install the seat position sensor. Torque: 8.0 N·m (82 kgf·cm, 71in·lbf) 2010 Toyota Prius Repair Manual...
  • Page 412 2. INSTALL FRONT SEAT CUSHION SHIELD ASSEMBLY LH 3. INSTALL VERTICAL ADJUSTING HANDLE LH (w/ Vertical Adjuster) 4. INSTALL RECLINING ADJUSTER RELEASE HANDLE LH 5. INSTALL FRONT SEAT ASSEMBLY LH HINT: Refer to the procedure from Install Front Seat Assembly 2010 Toyota Prius Repair Manual...
  • Page 413 COMPONENTS ILLUSTRATION ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 414 2010 Toyota Prius Repair Manual...
  • Page 415 (b) Visually check the side airbag sensors in undamaged areas for defects. (1) The defects are as follows: Cracks on the sensor housing Dents on the sensor housing Chips on the sensor housing Cracks or other damage to the connector Damage to the serial number 2010 Toyota Prius Repair Manual...
  • Page 416 No defects are found. HINT: If any of the defects is found or a side airbag sensor has detected a major collision, replace the side airbag sensor with a new one. 2010 Toyota Prius Repair Manual...
  • Page 417 (a) Check that the power switch is off. (b) Check that the cable is disconnected from the negative (-) battery terminal. CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. 2010 Toyota Prius Repair Manual...
  • Page 418 (2) Push and hold the white housing lock again, and slide the yellow outer connector locking sleeve to disconnect the connector. (d) Remove the bolt and side airbag sensor. NOTICE: Loosen the bolt while holding the side airbag sensor because the side airbag sensor pin (stopper) is easily damaged. 2010 Toyota Prius Repair Manual...
  • Page 419 2010 Toyota Prius Repair Manual...
  • Page 420 Tighten the bolt while holding the side airbag sensor because the side airbag sensor pin (stopper) is easily damaged. (d) Connect the connector to the side airbag sensor. NOTICE: When connecting any airbag connector, take care not to damage the airbag wire harness. 2010 Toyota Prius Repair Manual...
  • Page 421 8. INSTALL REAR DECK FLOOR BOX 9. INSTALL REAR NO. 2 FLOOR BOARD (for Separate Type) 10. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected 2010 Toyota Prius Repair Manual...
  • Page 422 11. PERFORM DIAGNOSTIC SYSTEM CHECK (a) Perform a diagnostic system check 12. INSPECT SRS WARNING LIGHT (a) Inspect the SRS warning light 2010 Toyota Prius Repair Manual...
  • Page 423 COMPONENTS ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 424 When disconnecting any airbag connector, take care not to damage the airbag wire harness. (b) Disconnect the other connector from the spiral cable with sensor sub-assembly. (c) Disengage the 3 claws to remove the spiral cable with sensor sub- assembly. 2010 Toyota Prius Repair Manual...
  • Page 425 2010 Toyota Prius Repair Manual...
  • Page 426 Standard Resistance Tester Connection Condition Specified Condition Center z9-1 - L52-8 (HO) 2.5 rotations to the left Below 1 Ω 2.5 rotations to the right z9-2 - L52-9 (IG) Center Below 1 Ω 2010 Toyota Prius Repair Manual...
  • Page 427 - L52-2 (ECC) 2.5 rotations to the left Below 1 Ω 2.5 rotations to the right Center z8-1 - L53-2 (D-) 2.5 rotations to the left Below 1 Ω 2.5 rotations to the right 2010 Toyota Prius Repair Manual...
  • Page 428 2.5 rotations to the right Center z7-2 - L53-4 (D2+) 2.5 rotations to the left Below 1 Ω 2.5 rotations to the right If the value is not within the specified range, replace the spiral cable. 2010 Toyota Prius Repair Manual...
  • Page 429 (f) Connect the connectors to the spiral cable with sensor sub-assembly. NOTICE: When connecting any airbag connector, take care not to damage the airbag wire harness. 2. INSTALL UPPER STEERING COLUMN COVER 2010 Toyota Prius Repair Manual...
  • Page 430 Do not turn the spiral cable using the airbag wire harness. HINT: The spiral cable will rotate approximately 2.5 turns to both the left and right from the center. 6. INSTALL STEERING WHEEL ASSEMBLY HINT: Refer to the procedure from Install Steering Wheel Assembly INSTALLATION 2010 Toyota Prius Repair Manual...
  • Page 431 (f) Connect the connectors to the spiral cable with sensor sub-assembly. NOTICE: When connecting any airbag connector, take care not to damage the airbag wire harness. 2. INSTALL UPPER STEERING COLUMN COVER 3. INSTALL LOWER STEERING COLUMN COVER 2010 Toyota Prius Repair Manual...
  • Page 432 Do not turn the spiral cable using the airbag wire harness. HINT: The spiral cable will rotate approximately 2.5 turns to both the left and right from the center. 6. INSTALL STEERING WHEEL ASSEMBLY HINT: Refer to the procedure from Install Steering Wheel Assembly 2010 Toyota Prius Repair Manual...
  • Page 433 COMPONENTS ILLUSTRATION ILLUSTRATION 2010 Toyota Prius Repair Manual...
  • Page 434 2010 Toyota Prius Repair Manual...
  • Page 435 Interference or uneven clearance between the steering pad and steering wheel assembly when the new steering pad is installed on the steering wheel assembly No defects are found. HINT: If any of the defects is found, replace the steering pad or steering wheel assembly with a new one. 2010 Toyota Prius Repair Manual...
  • Page 436 7. REMOVE LOWER NO. 2 STEERING WHEEL COVER (a) Using a screwdriver with its tip wrapped with protective tape, disengage the claw to remove the lower No. 2 steering wheel cover. Text in Illustration Protective Tape 2010 Toyota Prius Repair Manual...
  • Page 437 Text in Illustration Torsional Spring (d) Pull out the steering pad from the steering wheel assembly and support the steering pad with one hand. NOTICE: When removing the steering pad, do not pull the airbag wire harness. 2010 Toyota Prius Repair Manual...
  • Page 438 (f) Using a screwdriver with its tip wrapped with protective tape, release the 2 airbag connector locks. Text in Illustration Protective Tape (g) Disconnect the 2 airbag connectors to remove the steering pad. NOTICE: When disconnecting any airbag connector, take care not to damage the airbag wire harness. 2010 Toyota Prius Repair Manual...
  • Page 439 (f) Push the steering pad to engage the 2 pins. NOTICE: Make sure that the pins are securely inserted into the steering holes. 2. INSTALL LOWER NO. 3 STEERING WHEEL COVER (a) Engage the claw to install the lower No. 3 steering wheel cover. 2010 Toyota Prius Repair Manual...
  • Page 440 Cuts on the surface and in the grooves of the steering pad Small cracks on the surface and in the grooves of the steering pad Significant discoloration on the surface and in the grooves of the steering pad No defects are found. 2010 Toyota Prius Repair Manual...
  • Page 441 (b) Make sure that the horn sounds. HINT: If the horn does not sound, inspect the horn system 9. PERFORM DIAGNOSTIC SYSTEM CHECK (a) Perform a diagnostic system check 10. INSPECT SRS WARNING LIGHT (a) Inspect the SRS warning light 2010 Toyota Prius Repair Manual...
  • Page 442 When scrapping a vehicle equipped with an SRS or disposing of the steering pad, be sure to deploy the airbag first in accordance with the procedure described below. If any abnormality occurs with the airbag deployment, contact the Service Dept. of TOYOTA MOTOR SALES, U.S.A., INC. 2. DISPOSE OF STEERING PAD (When Installed in Vehicle) NOTICE: When disposing of the steering pad, never use the customer's vehicle to deploy the airbag.
  • Page 443 SST is malfunctioning. Replace SST. (3) Disconnect SST from the battery. (b) Refer to Precaution (c) Remove the lower steering column cover. (1) While turning the steering wheel assembly to the right and left, disengage the 2 claws. 2010 Toyota Prius Repair Manual...
  • Page 444 Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. (e) Disconnect the yellow airbag connector from the spiral cable. (1) Slide the slider to release the lock, and then disconnect the connector. 2010 Toyota Prius Repair Manual...
  • Page 445 Text in Illustration Battery (3) Maintaining sufficient clearance for the SST wire harness in the front side window, close all doors and windows of the vehicle. NOTICE: Take care not to damage the SST wire harness. 2010 Toyota Prius Repair Manual...
  • Page 446 Be sure to observe the following procedure when deploying the airbag. HINT: Prepare a battery as the power source to deploy the airbag. (a) Check the function of SST. SST: 09082-00700 CAUTION: When deploying the airbag, always use the specified SST: 2010 Toyota Prius Repair Manual...
  • Page 447 (-) battery terminal. When storing the steering pad, keep the airbag deployment side facing upward. (c) Using braided wire, tie down the steering pad to an unneeded wheel. Text in Illustration Stripped Wire Section Wire Diameter 2010 Toyota Prius Repair Manual...
  • Page 448 (3) Face the airbag deployment side of the steering pad upward on top of an unneeded tire and wheel set. Separately tie the left and right sides of the steering pad to the wheel through the hub nut holes. Position the SST 2010 Toyota Prius Repair Manual...
  • Page 449 To avoid damaging the SST connector or wire harness, do not lock the secondary lock of the twin lock. Also, secure some slack for the SST wire harness inside the disc wheel. (2) Move SST at least 10 m (32.8 ft.) away from the airbag tied down to the wheel. 2010 Toyota Prius Repair Manual...
  • Page 450 (f) Cover the steering pad (using tires). (1) Place at least 3 tires without wheels onto the wheel and tire to which the steering pad is tied. Text in Illustration Inner Diameter Width 2010 Toyota Prius Repair Manual...
  • Page 451 (g) Deploy the airbag. (1) Connect the red clip of SST to the positive (+) battery terminal and the black clip of SST to the negative (-) battery terminal. Text in Illustration Battery Steering Pad 2010 Toyota Prius Repair Manual...
  • Page 452 Always wash your hands with water after completing the operation. (1) Remove the steering pad from the wheel. (2) Place the steering pad in a plastic bag, tie it tightly and dispose of it according to local regulations. 2010 Toyota Prius Repair Manual...

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