Page 1 2007 4RUNNER ELECTRICAL WIRING DIAGRAM Page Section Code INTRODUCTION ....... HOW TO USE THIS MANUAL .
Page 2 A INTRODUCTION This manual consists of the following 13 sections: Section Description INDEX Index of the contents of this manual. INTRODUCTION Brief explanation of each section. HOW TO USE THIS Instructions on how to use this manual. MANUAL TROUBLE– Describes the basic inspection procedures for electrical circuits. SHOOTING ABBREVIATIONS Defines the abbreviations used in this manual.
Page 3 Manual Name Pub. No. D 2007 4RUNNER Repair Manual RM03M0U D 2007 TOYOTA New Car Features NM04J0U All information in this manual is based on the latest product information at the time of publication. However, specifications and procedures are subject to change without notice.
Page 4 HOW TO USE THIS MANUAL B This manual provides information on the electrical circuits installed on vehicles by dividing them into a circuit for each system. The actual wiring of each system circuit is shown from the point where the power source is received from the battery as far as each ground point.
Page 5 B HOW TO USE THIS MANUAL * The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION. Stop Light (BAT) (IG) 7.5A STOP GAUGE Stop Light SW 15 IE1 G –...
Page 6 [A] : System Title [H] : Indicates the wiring color. Wire colors are indicated by an alphabetical code. [B] : Indicates a Relay Block. No shading is used and only the Relay Block No. is shown to distinguish it B = Black W = White BR = Brown from the J/B...
Page 7 B HOW TO USE THIS MANUAL System Outline Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW. When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also flows through the rear lights warning light to TERMINAL 4 of the light failure sensor.
Page 8 [O] : Explains the system outline. [P] : Indicates the reference page showing the position on the vehicle of the parts in the system circuit. Example : Part ”L4” (Light Failure Sensor) is on page 36 of the manual. ∗ The letter in the code is from the first letter of the part, and the number indicates its order in parts starting with that letter.
Page 9 B HOW TO USE THIS MANUAL The ground points circuit diagram shows the connections from all major parts to the respective ground points. When troubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identify the problem ground quickly.
Page 10: Radio No
The ”Current Flow Chart” section, describes which parts each power source (fuses, fusible links, and circuit breakers) transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each system are explained. Since all System Circuit diagrams start from the power source, the power source system must be fully understood.
Page 11 B HOW TO USE THIS MANUAL K CONNECTOR LIST Dark Gray Gray 1 2 3 4 1 2 3 4 5 Black Dark Gray A A B C C C K CONNECTOR LIST Black Gray 1 2 3 5 6 7 8 9 10 11 6 7 8 9 10 11 12 13 [A] : Indicates connector to be connected to a part.
Page 12 Door Key Lock and Unlock SW RH [A] : Part Code [B] : Part Name [C] : Part Number Toyota Part Number are indicated. Not all of the above part numbers of the connector are established for the supply. 4RUNNER (EM03M0U)
Page 13 C TROUBLESHOOTING VOLTAGE CHECK To Ignition SW IG Terminal (a) Establish conditions in which voltage is present at the check point. Example: Fuse [A] – Ignition SW on [B] – Ignition SW and SW 1 on [C] – Ignition SW, SW 1 and Relay on (SW 2 off) (b) Using a voltmeter, connect the negative lead to a good ground point or negative battery terminal, and the positive lead to the SW 1...
Page 14 FINDING A SHORT CIRCUIT To Ignition SW IG Terminal (a) Remove the blown fuse and disconnect all loads of the fuse. (b) Connect a test light in place of the fuse. (c) Establish conditions in which the test light comes on. Test Light Fuse Case Example:...
Page 15 C TROUBLESHOOTING HOW TO REPLACE TERMINAL Reference: (with terminal retainer or secondary locking device) 1. PREPARE THE SPECIAL TOOL HINT : To remove the terminal from the connector, please construct and use the special tool or like object shown on the left.
Page 16 Tool For Waterproof Type Connector Example: Terminal (Case 1) Tool Retainer HINT : Terminal retainer color is different according to connector body. Example: Terminal Retainer : Connector Body Black or White : Gray Black or White : Dark Gray Tool Access Hole Gray or White : Black...
Page 17 C TROUBLESHOOTING Push the terminal retainer down to the temporary lock position. Retainer at Full Lock Position Retainer at Temporary Lock Position [Male] [Female] (c) Release the locking lug from terminal and pull the terminal out Locking Lug from rear. Tool 4.
Page 18 Specification Supplemental Restraint System Switch TEMP. Temperature TRAC Traction Control TVIP TOYOTA Vehicle Intrusion Protection Vehicle Stability Control Vacuum Switching Valve Variable Valve Timing VVT–i Variable Valve Timing–intelligent With Without ∗ The titles given inside the components are the names of the terminals (terminal codes) and are not treated as being abbreviations.
Page 19 E GLOSSARY OF TERMS AND SYMBOLS GROUND BATTERY The point at which wiring attaches to Stores chemical energy and the Body, thereby providing a return converts it into electrical energy. path for an electrical circuit; without a Provides DC current for the auto’s ground, current cannot flow.
Page 20 SPEAKER RELAY An electromechanical device which Basically, an electrically operated 1. NORMALLY creates sound waves from current switch which may be normally CLOSED flow. closed (1) or open (2). Current flow through a small coil creates a magnetic field which either opens or closes an attached switch.
Page 21: Engine Compartment
F RELAY LOCATIONS [Engine Compartment] Skid Control ECU Engine Room R/B No.3 with Actuator Engine Room Air Injection Control Driver Engine Room R/B No.4 [Body] Moon Roof Control ECU Rear Seat Audio Controller Tire Pressure Warning Antenna and Receiver Stereo Component Amplifier Towing Converter Relay Door Control Receiver...
Page 22: Instrument Panel
[Instrument Panel] Transponder Key Theft Deterrent Center J/B Amplifier Transponder Key Computer Engine Control Module 4WD Control Suspension Control ECU Tire Pressure Warning ECU A/C Control Assembly Turn Signal Flasher Relay Daytime Running Driver Side J/B Body ECU Airbag Sensor Shift Lock Light Relay Assembly...
Page 23: Table Of Contents
F RELAY LOCATIONS : Engine Room R/B Engine Compartment Left (See Page 20) * 1:ACC CUT Relay FUEL PUMP Relay * 2:FR FOG Relay * 3:STA Relay * 4:HEATER Relay * 5:MG CLT Relay AC115V INV Relay * 6:RADIO NO.1 * 7:C/OPN Relay IG Relay DEFOG Relay...
Page 24: Engine Compartment Left (See
: Engine Room R/B No.3 Engine Compartment Left (See Page 20) BATT CHG Relay TOWING TAIL Relay : Engine Room R/B No.4 Engine Compartment Left (See Page 20) AIR SUS Relay 4RUNNER (EM03M0U)
Page 25 F RELAY LOCATIONS : Driver Side J/B Lower Finish Panel (See Page 21) 201918 17 16 1514 1312 11 6 5 4 3 2 1 10 9 8 7 (from Roof Wire) 6 5 4 3 2 1 1 2 3 18 17 16 15 14 13 12 11 6 7 8 9 10111213...
Page 26 Body ECU POWER Relay DC SKT Relay TAIL Relay HORN Relay (from Instrument Panel Wire) 25 26 9 10 (from Instrument Panel Wire) 2122 23 24 15 16 9 10 11 12 16 15 13 1211 (from Instrument Panel Wire) (from Instrument Panel Wire) (from Instrument Panel Wire) 4RUNNER (EM03M0U)
Page 27 F RELAY LOCATIONS [Driver Side J/B Inner Circuit] 7.5A STA NO.2 3 1D 2 1K 13 1L 4 1K 4 1D 21 1E 10 1J 15 1L 10A IGN 6 1D 23 1E 2 1L 11 1J 7.5A GAUGE 1 1J 4 1G 10A SRS 2 1J...
Page 28 (Cont'd) 15A IG1 2 1C 20 1E 1 1E 8 1J 2 1E 2 1A 17 1J 7 1K 10A ECU-IG 18 1J 12 1E 20 1J 28 1J 15 1K 8 1F 16 1L 3 1A 30A FR WIP-WSH 16 1K 22 1E 4 1F...
Page 29 F RELAY LOCATIONS : Center J/B Instrument Panel Brace RH (See Page 21) Black B B B B B (from Instrument Panel Wire) (from Instrument Panel Wire) Gray D D D G G G (from Instrument Panel Wire) Black C C C (from Instrument Panel Wire) Dark Gray A A A...
Page 30 Memo 4RUNNER (EM03M0U)
Page 31 F RELAY LOCATIONS [Center J/B Inner Circuit] A 3A E 3C A 3A E 3C A 3A E 3C B 3A D 3C B 3A D 3C B 3A D 3C B 3A B 3D B 3A B 3D A 3B B 3D A 3B B 3D...
Page 32 (Cont'd) F 3E F 3E F 3E E 3E E 3E E 3E D 3E D 3E D 3E C 3E C 3E C 3E A 3F A 3F A 3F A 3F A 3F A 3F A 3F A 3F A 3F B 3F B 3F...
Page 33 G ELECTRICAL WIRING ROUTING Position of Parts in Engine Compartment [2UZ–FE] A 1 A/C Ambient Temp. Sensor E 1 Electronically Controlled Transmission Solenoid A 2 A/C Lock Sensor E 2 Engine Coolant Temp. Sensor A/C Magnetic Clutch E 3 Engine Hood Courtesy SW A 9 ABS Speed Sensor Front LH A 10 ABS Speed Sensor Front RH F 1 Front Fog Light LH...
Page 34 Position of Parts in Engine Compartment [2UZ–FE] 1 Ignition Coil and Igniter No.1 O 1 Oil Pressure SW 2 Ignition Coil and Igniter No.2 3 Ignition Coil and Igniter No.3 P 1 Park/Neutral Position SW 4 Ignition Coil and Igniter No.4 P 3 Pressure SW 5 Ignition Coil and Igniter No.5 6 Ignition Coil and Igniter No.6...
Page 35 G ELECTRICAL WIRING ROUTING Position of Parts in Engine Compartment [1GR–FE] H10 A14 A 1 A/C Ambient Temp. Sensor F 1 Front Fog Light LH A 2 A/C Lock Sensor F 2 Front Fog Light RH A/C Magnetic Clutch F 5 Front Parking Light LH A 9 ABS Speed Sensor Front LH Front Turn Signal Light LH A 10 ABS Speed Sensor Front RH...
Page 36 Position of Parts in Engine Compartment [1GR–FE] 1 Ignition Coil and Igniter No.1 P 1 Park/Neutral Position SW 2 Ignition Coil and Igniter No.2 P 2 Power Steering Oil Pressure SW 3 Ignition Coil and Igniter No.3 P 3 Pressure SW 4 Ignition Coil and Igniter No.4 5 Ignition Coil and Igniter No.5 S 2 Starter...
Page 37 G ELECTRICAL WIRING ROUTING Position of Parts in Instrument Panel (*4) (*3) (*4) (*3) * 1:w/ Side Airbag * 2:w/o Side Airbag * 3:Limited * 4:Except Limited (*1) (*2) (*1) (*2) A 16 A/C Control Assembly B 1 Back Door Power Window Control SW A 17 A/C Control Assembly B 2 Blower Motor A 18 A/C Evaporator Temp.
Page 38 Position of Parts in Instrument Panel C11 C13 C14 C 5 Center Speaker E 4 Engine Control Module C 6 Cigarette Lighter E 5 Engine Control Module C 7 Cigarette Lighter Illumination E 6 Engine Control Module C 8 Combination Meter E 7 Engine Control Module C 9 Combination Meter E 8 Engine Control Module...
Page 39 G ELECTRICAL WIRING ROUTING Position of Parts in Instrument Panel (*6) (*5) * 5:1GR-FE * 6:2UZ-FE J 4 Junction Connector J 24 Junction Connector J 5 Junction Connector J 25 Junction Connector J 6 Junction Connector J 26 Junction Connector J 7 Junction Connector J 27 Junction Connector J 8 Junction Connector...
Page 40 Position of Parts in Instrument Panel (*7) (*7) (*9) (*7) (*10) (*9) (*7) (*8) (*8) (*7) (*7) R13 S30 * 7:w/ Navigation System * 8:w/o Navigation System * 9:6 Speaker * 10:10 Speaker w/o Navigation System K 3 Key Interlock Solenoid S 4 Seat Heater SW LH Unlock Warning SW S 5 Seat Heater SW RH...
Page 41 G ELECTRICAL WIRING ROUTING Position of Parts in Body (*2) (*1) D19 C16 H18 * 1:w/ Rear Spoiler * 2:w/o Rear Spoiler A 40 ABS Speed Sensor Rear LH D19 Door Lock Detection SW Front RH A 41 ABS Speed Sensor Rear RH Door Lock Motor Front RH D20 Door Lock Detection SW Rear LH B 7 Back Door Courtesy SW...
Page 42 Position of Parts in Body M 3 Mirror Heater LH S 16 Side Airbag Sensor Front LH Remote Control Mirror LH S 17 Side Airbag Sensor Front RH M 4 Mirror Heater RH S 18 Side Airbag Sensor Rear LH Remote Control Mirror RH S 19 Side Airbag Sensor Rear RH M 5 Moon Roof Control ECU...
Page 43 G ELECTRICAL WIRING ROUTING Position of Parts in Seat [Power Seat] * 1:w/ Driving Position Memory * 2:w/o Driving Position Memory (*2) (*2) (*1) (*2) B 12 Buckle SW LH P 18 Power Seat Control SW (Driver’s Seat) Seat Position Airbag Sensor P 19 Power Seat Control SW (Front Passenger’s Seat) B 15 Buckle SW LH P 20 Power Seat Motor (Driver’s Seat Front Vertical Control)
Page 44 Position of Parts in Seat [Manual Seat] B 12 Buckle SW LH O 3 Occupant Classification ECU Seat Position Airbag Sensor O 4 Occupant Classification ECU B 15 Buckle SW LH O 5 Occupant Classification Sensor Front LH B 16 Buckle SW RH O 6 Occupant Classification Sensor Front RH B 17 Buckle SW RH O 7 Occupant Classification Sensor Rear LH...
Page 45 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points [2UZ–FE] Engine Wire Engine Room Main Wire Engine No.2 Wire 4RUNNER (EM03M0U)
Page 46 : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points [1GR–FE] Engine Wire Sensor Wire Differential Wire Engine Room Main Wire Engine No.2 Wire 4RUNNER (EM03M0U)
Page 47 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness Relay Wire Instrument Panel Engine Wire Engine Room No.2 Wire Main Wire Roof Wire Instrument Panel Engine Room Wire Assembly Main Wire Instrument Panel Wire Front Door RH Wire Cigarette Lighter Wiring Assembly...
Page 48 : Location of Connector Joining Wire Harness and Wire Harness Instrument Panel Instrument Engine Wire Instrument Panel Engine Room No.2 Wire Panel Wire Wire Assembly Main Wire Engine Room Main Wire Roof Wire Radio Front Door Installation RH Wire Wiring Sub Assembly Front Door LH Wire...
Page 49 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points Radio Installation Front Door Roof Wire Wiring Sub Assembly RH Wire Instrument Panel Wire Rear Door No.1 Wire Floor Wire Front Door Back Door LH Wire No.1 Wire...
Page 50 Memo 4RUNNER (EM03M0U)
Page 51 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness [Power Seat] Floor Wire * 1:w/ Driving Position Memory Floor No.2 Wire (*1) Seat No.2 Wire Seat No.1 Wire 4RUNNER (EM03M0U)
Page 52 : Location of Connector Joining Wire Harness and Wire Harness [Manual Seat] Floor Wire Floor No.2 Wire Seat No.2 Wire Seat No.1 Wire 4RUNNER (EM03M0U)
Page 53 Power Source 10A MIR HEATER B–R B–L 30A DEFOG Y–G DEFOG Relay Y–R B–R W–B 10A AIRSUS NO. 2 L–Y L–B 50A AIR SUS BR–Y W–B 30A TOWING BRK AIR SUS Relay 30A BATT CHG 50A AM1 B–Y W–L 50A A/PUMP 50A J/B 10A SECU/HORN L–W...
Page 54 HEATER Relay Y–R 7. 5A HEATER NO. 2 B–Y G–Y W–B Ignition SW W–G W–L L–Y W–L 30A AM2 B–R G–B 40A ABS MTR Y–B 60A HEATER 30A ABS SOL Short Pin 20A EFI 7. 5A ALT–S 10A ETCS 10A HORN 20A DR/LCK 10A HEAD ( HI RH ) W–G...
Page 55 Power Source 7. 5A ACC 10A CIG W–G 15A IG1 10A ECU–IG 15A RR WSH 20A 4WD W–G 30A FR WIP–WSH L–Y 10A IGN 7. 5A GAUGE B–R 10A SRS G–B 7. 5A STA NO. 2 10A DOME 20A RADIO NO. 1 L–Y 10A ECU–B W–R...
Page 56 : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) Engine Room R/B No.4 (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location)
Page 57 Starting ∗ 1 : 2UZ–FE ∗ 2 : 1GR–FE ∗ 3 : 1GR–FE Cold Area Spec. ∗ 4 : 1GR–FE Except Cold Area Spec. G–B Ignition SW 7. 5A NO. 2 ( ∗1 ) ( ∗2 ) ( ∗1 ) ( ∗2 ) ( ∗1 ) ( ∗1 )
Page 58 : Parts Location Code See Page Code See Page Code See Page 35 (1GR–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...
Page 59 H SYSTEM CIRCUITS 2007 4RUNNER ELECTRICAL WIRING DIAGRAM SYSTEM CIRCUITS Page ABS ............. . . Active Height Control Suspension .
Page 60 Page Power Seat (Driver’s Seat w/o Driving Position Memory) ....Power Seat (Front Passenger’s Seat) ....... . . Power Source .
Page 61 Ignition for 2UZ–FE B–R Ignition SW B–R B–R B–R B–R B–R B–R B–R B–R W–B W–B W–B R–Y R–Y R–Y R–Y R–W R–W R–W IGT1 IGF1 IGT2 IGF2 IGT3 IGT4 Battery Engine Control Module 4RUNNER (EM03M0U)
Page 62 B–R B–R B–R B–R B–R B–R B–R W–B W–B W–B W–B R–Y R–Y R–Y R–W R–W R–W IGT5 IGT6 IGT7 IGT8 Engine Control Module 4RUNNER (EM03M0U)
Page 63 Ignition for 2UZ–FE : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Connector Joining Wire Harness and Wire Harness...
Page 64 Memo 4RUNNER (EM03M0U)
Page 65 Ignition for 1GR–FE B–R Ignition SW 4 1H 13 IM1 B–R B–R B–R W–B W–B W–B W–R W–R W–R W–R IGT1 IGF1 IGT2 IGT3 IGT4 Battery Engine Control Module 4RUNNER (EM03M0U)
Page 66 B–R B–R W–B W–B W–R W–R IGT5 IGT6 Engine Control Module 4RUNNER (EM03M0U)
Page 67 Ignition for 1GR–FE : Parts Location Code See Page Code See Page Code See Page 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code...
Page 68 Memo 4RUNNER (EM03M0U)
Page 69 Charging B–R W–L L–Y 7. 5A B–R GAUGE Ignition SW Body ECU ∗ 1 : 2UZ–FE ∗ 2 : 1GR–FE 5 EA1 ( ∗1 ) ( ∗1 ) ( ∗2 ) ( ∗2 ) 1 EA2 IC Regulator Battery G 1 ( A ) , G 2 ( B ) Generator 4RUNNER (EM03M0U)
Page 70 : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 34 (1GR–FE) 32 (2UZ–FE) 33 (2UZ–FE) 34 (1GR–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...
Page 71 Engine Control for 2UZ–FE ( ACC ) ( BAT ) ( BAT ) 7. 5A A/F HEATER B–R F 3E W–G B–R B–O B–W 38 IC4 Ignition SW Junction Connector GR–B Battery J 2 ( A ) , J 3 ( B ) Junction Connector L–W...
Page 72 B–R B–R B–R B–R W–G B–O B–W B–W 6 1D BATT MREL STAR/ E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module IGSW ACCR...
Page 73 Engine Control for 2UZ–FE B–R B–R B–R B–R B–R B–R B–R # 10 # 20 # 30 # 40 # 50 # 60 # 70 # 80 E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module MPMP VPMP...
Page 74 ∗ 1 : Shielded ( ST ) 7. 5A NO. 2 Accel Position Sensor 2 1K VPA1 VPA2 VCP1 VCP2 6 IM2 34 IC4 31 IC4 26 IC4 9 IC3 17 C 16 C 15 C 14 C 12 C 19 E OC1+ OC1–...
Page 75 Engine Control for 2UZ–FE ∗ 1 : Shielded R–Y R–Y R–W R–W R–W 15 A 11 A 10 A 13 A 12 A 14 A IGF1 IGT1 IGT2 IGT3 IGT4 IGT5 IGT6 IGT7 E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module ACIS A2A+...
Page 76 ( BAT ) ( BAT ) ETCS STOP R–W Airbag Sensor Transponder Key Assembly Computer G–Y GSW2 EFIO EFII G–Y 25 A 32 D 16 D 15 E IGT8 IGF2 F/PS E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module OX1B HT1B...
Page 77 Engine Control for 2UZ–FE ∗ 1 : Shielded ( BAT ) ( BAT ) 140A TAIL DEFOG 5 1L DEFOG Relay Junction Connector Y–G 13 D ELS1 ELS2 E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module KNK2 EKN2...
Page 78 ( BAT ) 4WD Control ECU A/PUMP P–L P–L 13 C 34 D 33 D 25 E 13 E CANL CANH AIRP AIRV AIDI E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) BATT Engine Control Module ME01...
Page 79 Engine Control for 2UZ–FE ( BAT ) 7. 5A P–L Yaw Rate Sensor CANH CANL CANL CANH ST–Plug J47 ( A ) , J48 ( B ) , J49 ( C ) , J50 ( D ) , J51 ( E ) , J52 ( F ) Junction Connector CANH...
Page 80 ( IG ) ( BAT ) 7. 5A GAUGE DOME 7 IC2 GR–R R–B B–W V–R 4RUNNER (EM03M0U)
Page 81 Engine Control for 2UZ–FE System Outline The engine control system utilizes a microcomputer and maintains overall control of the engine, transmission etc. An outline of the engine control is given here. 1. Input Signals (1) Engine coolant temp. signal circuit The engine coolant temp.
Page 82 2. Control System ∗ SFI system The SFI system monitors the engine condition through the signals input from each sensors to the engine control module. The control signal is sent to the engine control module TERMINALS #10, #20, #30, #40, #50, #60, #70 and #80 to operate the injector (Fuel injection).
Page 83 Engine Control for 2UZ–FE : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 33 (2UZ–FE) 32 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 32 (2UZ–FE) 33 (2UZ–FE) 32 (2UZ–FE) 33 (2UZ–FE) 32 (2UZ–FE) 33 (2UZ–FE) 32 (2UZ–FE)
Page 84 : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) 44 (2UZ–FE) Engine No.2 Wire and Engine Room Main Wire (Under the Engine Room R/B) 44 (2UZ–FE) 44 (2UZ–FE) Engine No.2 Wire and Engine Wire (Near the Starter) Engine No.2 Wire and Engine Wire (Near the Starter) Floor No.2 Wire and Engine Room Main Wire (Left Kick Panel) Floor No.2 Wire and Engine Room Main Wire (Left Kick Panel)
Page 85 Engine Control for 1GR–FE ( ACC ) ( BAT ) ( BAT ) 7. 5A A/F HEATER B–R F 3E W–G B–R B–O B–W 38 IC4 Ignition SW Junction Connector GR–B Battery J 2 ( A ) , J 3 ( B ) Junction Connector L–W...
Page 86 B–R B–R W–G B–O B–W B–W 3 1H BATT MREL STAR/ E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module IGSW ACCR...
Page 87 Engine Control for 1GR–FE ( ST ) 7. 5A B–R B–R B–R B–R B–R NO. 2 # 10 # 20 # 30 # 40 # 50 # 60 STSW E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module MPMP VPMP...
Page 88 ∗ 1 : Shielded Accel Position Sensor VPA1 VPA2 VCP1 VCP2 29 IC4 8 IC3 18 E 20 E OC1+ OC1– OC2+ OC2– VPA2 VCPA VCP2 EPA2 E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module VTA1 VTA2...
Page 89 Engine Control for 1GR–FE ∗ 1 : Shielded W–R W–R W–R W–R W–R IGT1 IGT2 IGT3 IGT4 IGT5 IGT6 IGF1 E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module ACIS A2A+...
Page 90 ( BAT ) ( BAT ) ETCS STOP Airbag Sensor Transponder Key Assembly Computer G–Y GSW2 EFIO EFII E 3C E 3C 13 IC4 15 IC3 2 IL1 G–Y 15 D F/PS E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module OX1B HT1B...
Page 91 Engine Control for 1GR–FE ∗ 1 : Shielded ( BAT ) ( BAT ) 140A TAIL DEFOG Junction Connector Y–G D 3D J31 ( A ) , J32 ( B ) D 3D Junction Connector 13 D ELS2 ELS1 E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module EKN2 KNK2...
Page 92 F 9 ( A ) , F10 ( B ) ( BAT ) 4WD Control ECU ADD Actuator 7. 5A 6 EC1 P–L 15 IM2 23 E CANL CANH E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) CANL CANH Engine Control Module...
Page 93 Engine Control for 1GR–FE Yaw Rate Sensor CANH CANL ST–Plug J47 ( A ) , J48 ( B ) , J49 ( C ) , J50 ( D ) , J51 ( E ) , J52 ( F ) Junction Connector CANH CANL...
Page 94 ( IG ) ( BAT ) 7. 5A GAUGE DOME 7 IC2 GR–R B–W R–B B–W V–R 4RUNNER (EM03M0U)
Page 95 Engine Control for 1GR–FE System Outline The engine control system utilizes a microcomputer and maintains overall control of the engine, transmission etc. An outline of the engine control is given here. 1. Input Signals (1) Engine coolant temp. signal circuit The engine coolant temp.
Page 96 2. Control System ∗ SFI system The SFI system monitors the engine condition through the signals input from each sensors to the engine control module. The control signal is sent to the engine control module TERMINALS #10, #20, #30, #40, #50 and #60 to operate the injector (Fuel injection).
Page 97 Engine Control for 1GR–FE : Parts Location Code See Page Code See Page Code See Page 34 (1GR–FE) 35 (1GR–FE) 34 (1GR–FE) 35 (1GR–FE) 34 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 34 (1GR–FE) 35 (1GR–FE) 34 (1GR–FE) 35 (1GR–FE) 34 (1GR–FE)
Page 98 : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) 45 (1GR–FE) Engine Wire and Differential Wire (Near the Front Differential) 45 (1GR–FE) Engine Wire and Sensor Wire (Rear Side of Right Bank Cylinder Block) Floor No.2 Wire and Engine Room Main Wire (Left Kick Panel) Floor No.2 Wire and Engine Room Main Wire (Left Kick Panel) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
Page 99: Engine Immobiliser System
Engine Immobiliser System ( IG ) ( BAT ) Data Link ECU–B Connector 3 Junction Connector Transponder Key Amplifier Transponder Key Coil Junction Connector ANT1 ANT2 CODE TXCT Junction Junction Connector Connector CODE TXCT AGND Transponder Key Computer EFIO EFII Junction Connector Security...
Page 100 : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
Page 101 Multiplex Communication System – BEAN Bus B 4 ( A ) , B 6 ( C ) Body ECU MPX3 MPX2 26 C Junction Connector MPX1 MPX2 Theft Deterrent Back Door 4RUNNER (EM03M0U)
Page 102 Multiplex Communication System Includes Following Systems ∗ Automatic Light Control ∗ Door Lock Control ∗ Front Fog Light ∗ Garage Door Opener ∗ Headlight ∗ Interior Light ∗ Key Reminder ∗ Light Auto Turn Off System ∗ Mirror Heater ∗ Power Window ∗...
Page 103 Multiplex Communication System – CAN Bus Data Link Yaw Rate Sensor Connector 3 Engine Control Module CANH CANL CANH CANL CANH CANL ST–Plug J47 ( A ) , J48 ( B ) , J49 ( C ) , J50 ( D ) , J51 ( E ) , J52 ( F ) Junction Connector 11 IC2...
Page 104 System Outline CAN has two lines as a pair which make communication with operating voltage. CAN has excellent data speed and error detecting capacity. It consists of vehicle control systems such as engine control module, data link connector 3, skid control ECU with actuator, steering sensor and yaw rate sensor.
Page 105 Multiplex Communication System – BEAN B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ( BAT ) ( BAT ) ( ACC ) ( IG ) 7. 5A BDR1 CLTB CLTE CLTS DR/LCK...
Page 106 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU TRLY HRLY R–B 1 1C HEAD HEAD HEAD HEAD ( LO LH ) ( LO RH ) ( HI LH ) ( HI RH ) R–W L–W...
Page 107 Multiplex Communication System – BEAN B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU HEAD TAIL ∗ 1 : w/ Daytime Running Light ∗ 2 : w/ Rear Seat Entertainment System ∗...
Page 108 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU GND2 GND1 ( BAT ) ( BAT ) R–L FR FOG POWER 7 1A 8 1A 2 1F 25 1J 1 1H 1 1A 2 1H W ( ∗2 )
Page 109 Multiplex Communication System – BEAN B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU PCYL RCYL 10 B 22 B 12 1A 18 1A 9 1K DOWN 9 IP1 ( w/ Vanity Light ) Back Door Power Window Control SW Junction Connector...
Page 110 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU DCYL LCYL RDEF 26 A 21 B J20 ( A ) , J21 ( B ) ( BAT ) Junction Connector 140A 9 IA1 4 IE1...
Page 111 Multiplex Communication System – BEAN B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU STPI ( BAT ) ( IG ) ( BAT ) ( ∗4 ) STOP TRN–HAZ 20 1E 8 1J Y–R G–W...
Page 112 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU DEFSW DIND 17 B ∗ 1 : w/ Daytime Running Light ∗ 4 : w/o Daytime Running Light Defogger SW 8 IM1 Passenger Seat Belt Warning Light Security Indicator Light...
Page 113 Multiplex Communication System – BEAN B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU MPX3 ( IG ) ( BAT ) G–Y BR–Y ECU–IG SECU/HORN 2 IN1 J18 ( A ) , J19 ( B ) Junction Connector BR–Y...
Page 114 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU TOUT ( BAT ) Power Window Motor Front RH HORN L–B 10 1E HORN Relay 10 IP2 9 IP2 L–R 1 1D L–Y G–R Junction Connector...
Page 115 Multiplex Communication System – BEAN B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU W/L 1 W/L 2 Door Lock Control SW Front LH Power Window Master SW J22 ( A ) , J23 ( B ) Junction Connector L–R...
Page 116 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU Door Lock Control SW Front LH Power Window Master SW PLS2 7 BA1 SSRB PLS2 L–W L–O Power Window Control SW Rear LH Junction Connector 5 BA1...
Page 117 Multiplex Communication System – BEAN B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU LSWD ACTD LSWP 21 A 5 1K Door Lock Control SW Front RH B–W Junction Connector L–R 7 IA1 5 IP1...
Page 118 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ACT+ ACT– ACTY 6 1L 11 1L 10 1L B–W L–R DOOR Door Lock Detection Door Lock Detection Door Lock Detection SW Front RH SW Rear LH SW Rear RH...
Page 119 Multiplex Communication System – BEAN B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU BZR2 LMRY ( IG ) Junction Connector 7. 5A GAUGE ( BAT ) DOME Door Control Receiver DOME R–L...
Page 120 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU DRLP DCY2 KSWO ∗ 5 : 2UZ–FE ∗ 6 : 1GR–FE C 8 ( A ) , C 9 ( B ) , C10 ( C ) , C11 ( D ) Combination Meter 19 B 10 D...
Page 121 Multiplex Communication System – BEAN B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU B16 ( A ) , ( B ) Buckle SW RH C 8 ( A ) , C 9 ( B ) , C10 ( C ) , C11 ( D ) Combination Meter Skid Control ECU ( ∗11 )
Page 122 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU DBKL B–R E 7 ( D ) Engine Control Module ELS2 ( ∗5 ) ELS1 ( ∗6 ) ( ∗5 ) DEFOG MIR HEATER ( ∗6 )
Page 123 Multiplex Communication System – BEAN B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU BECU OBD2 ( BAT ) 4 1L 12 1F Junction Connector ECU–B 18 IP1 B–L 1 EA1 ( ∗5 ) Data Link Connector 3 3 EA2...
Page 124 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU WMTR RWON RWINT DCTY PCTY RLCY RRCY MPX2 23 B 24 B 12 B Diode 37 IE1 40 IE1 ( Rear Wiper ) BR–R 7 IH1 LG–B...
Page 125 Multiplex Communication System – BEAN B 8 ( A ) , B 9 ( B ) Back Door ECU MPX2 BECU HSW+ HSW– DOWN HALF FULL ACT+ ACT– 15 B 14 B 5 BD1 BR–R Tailgate Control SW Back Door Courtesy SW Back Door Half Latch SW Back Door Lock Detection SW Back Door Lock Motor...
Page 126 B 8 ( A ) , B 9 ( B ) Back Door ECU BDUP BDDN IC– SGND WIP+ WIP– 18 B 12 B SSRB PLS2 Return Position Furthest Position Stop Rear Wiper Motor Rear Wiper Position SW Back Door Power Window Motor 4RUNNER (EM03M0U)
Page 127 Multiplex Communication System – BEAN System Outline Communication Outline Communication is made among the body, theft deterrent and back door ECUs. When the ECU receives a signal from related switches, i.e., the rear wiper SW, the body ECU sends signals to the back door ECU, and moves rear wiper.
Page 128 : Parts Location Code See Page Code See Page Code See Page 34 (1GR–FE) 32 (2UZ–FE) 34 (1GR–FE) 32 (2UZ–FE) 34 (1GR–FE) 32 (2UZ–FE) 42 (*1) 34 (1GR–FE) 43 (*2) 32 (2UZ–FE) 42 (*1) 34 (1GR–FE) 43 (*2) 32 (2UZ–FE) 42 (*1) 34 (1GR–FE) 32 (2UZ–FE)
Page 129 Multiplex Communication System – BEAN : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Roof Wire and Driver Side J/B (Lower Finish Panel) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
Page 130 : Ground Points Code See Page Ground Points Location 44 (2UZ–FE) Front Right Fender Front Right Fender 45 (1GR–FE) 44 (2UZ–FE) Front Left Fender Front Left Fender 45 (1GR–FE) 44 (2UZ–FE) Left Bank Cylinder Head 44 (2UZ–FE) Rear Side of Cylinder Block 45 (1GR–FE) Rear Side of Right Bank Cylinder Block Left Kick Panel...
Page 131 Headlight B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ( BAT ) ( ACC ) ( IG ) 7. 5A BECU HRLY ECU–B ECU–IG R–B R–B W–R ∗ 1 : w/ Daytime Running Light ∗...
Page 132 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU R–B R–B HEAD HEAD HEAD HEAD ( LO LH ) ( LO RH ) ( HI LH ) ( HI RH ) R–G R–G R–G...
Page 133 Headlight B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU HEAD GND1 GND2 14 A 1 IH1 9 IH1 17 1J 1 1E Combination SW 6 IC4 Tail Head Auto ( ∗2 ) 1 EA1 3 EA2...
Page 134 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ( IG ) ( BAT ) 15 1J TRN–HAZ Junction Connector 3 IH1 2 IH1 G–Y ( ∗1 ) G–B ( ∗1 ) W–B ( ∗1 ) W–B ( ∗1 ) W–B...
Page 135 Headlight System Outline (w/ daytime running light) ∗ This system is designed to automatically activate the turn signal lights during the daytime to keep the car highly visible to other vehicles. This system is controlled by the body ECU. This system makes use of the turn signal lights as daytime running lights. For this reason, when the turn signal lights are operated, the daytime running lights function is interrupted momentarily, which, however, will be brought back into operation as soon as the interposed operation is over.
Page 136 : Ground Points Code See Page Ground Points Location 44 (2UZ–FE) Front Right Fender Front Right Fender 45 (1GR–FE) 44 (2UZ–FE) Front Left Fender Front Left Fender 45 (1GR–FE) 44 (2UZ–FE) Left Bank Cylinder Head 44 (2UZ–FE) Rear Side of Cylinder Block 45 (1GR–FE) Rear Side of Right Bank Cylinder Block Left Kick Panel...
Page 137 Front Fog Light R–L G–R B 6 ( C ) Body ECU HEAD HEAD ( HI LH ) HRLY W–B Combination SW Tail Head Auto High Flash HEAD Relay R–G Battery 4RUNNER (EM03M0U)
Page 138 ( BAT ) FR FOG R–L G–R FR FOG W–B Relay G–R C10 ( C ) , C11 ( D ) Combination Meter Junction Connector 4RUNNER (EM03M0U)
Page 139 Front Fog Light : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 34 (1GR–FE) 32 (2UZ–FE) 34 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...
Page 140 Memo 4RUNNER (EM03M0U)
Page 141: Automatic Light Control
Automatic Light Control ( BAT ) ( BAT ) ( IG ) ( ACC ) 7. 5A ECU–B ECU–IG TAIL Relay TRLY BECU HRLY GND1 GND2 CLTB CLTE CLTS B 5 ( B ) , B 6 ( C ) Body ECU 2 1H Combination SW...
Page 142 System Outline The automatic light control system works when the light control SW is turned to AUTO. The automatic light control sensor detects the brightness around the vehicle. By this function, the system automatically turns the taillight and headlight on if the brightness is below the regular level and turns the taillight and headlight off when the surroundings become brighter than the regular level.
Page 143 Light Auto Turn Off System ( BAT ) ( ACC ) 7. 5A TAIL Relay B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU TRLY HRLY GND1 GND2 HEAD TAIL DCTY PCTY RLCY...
Page 144 ( IG ) ( BAT ) ( BAT ) ECU–IG ECU–B DOME W–R 8 1F 12 1F 10 IC4 Junction Connector B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU BECU MPX2 Junction...
Page 145 Light Auto Turn Off System System Outline When all doors are closed after opening some or all of them after the Ignition SW is turned from ON to OFF with the head and tail lamps ON, these lamps will remain ON for 30 seconds after the doors are closed and then go OUT automatically. Pressing the lock SW on a wireless controller twice in succession turns OFF the lamps instantly.
Page 146 Memo 4RUNNER (EM03M0U)
Page 147 Turn Signal and Hazard Warning Light with DRL ( IG ) ( BAT ) TRN–HAZ Junction Connector L–Y J20 ( A ) , J21 ( B ) Junction L–B Connector 5 1J 15 1F 9 1F Turn Signal Flasher Relay 3 1G 2 1G Turn...
Page 148 L–Y L–B LTIN RTIN 4RUNNER (EM03M0U)
Page 149 Turn Signal and Hazard Warning Light with DRL : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 34 (1GR–FE) 32 (2UZ–FE) 34 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...
Page 150 Memo 4RUNNER (EM03M0U)
Page 151 Turn Signal and Hazard Warning Light without DRL ( IG ) ( BAT ) TRN–HAZ L–Y L–Y L–B L–B L–Y L–B 5 1J 15 1F 9 1F 3 1G 2 1G Turn Combination SW J22 ( A ) , J23 ( B ) Junction Connector Junction...
Page 152 L–Y L–B L–Y L–B LTIN RTIN W–B 4RUNNER (EM03M0U)
Page 153 Turn Signal and Hazard Warning Light without DRL : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 34 (1GR–FE) 32 (2UZ–FE) 34 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...
Page 154 Memo 4RUNNER (EM03M0U)
Page 155 Interior Light B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ( ACC ) 7. 5A GND2 GND1 2 1H 7 1A 8 1A ( ∗1 ) W ( ∗4 ) W ( ∗4 ) ( ∗3 ) ( ∗4 )
Page 156 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU PCYL RCYL DCYL LCYL 25 A J20 ( A ) , J21 ( B ) Junction Connector 5 IO3 8 BA1 Junction Connector 4 IO3 R ( ∗2 )
Page 157 Interior Light B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU LMRY DCTY PCTY Junction Connector ( BAT ) DOME Door Control Receiver DOME Relay W–B R–W 4RUNNER (EM03M0U)
Page 158 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU RLCY RRCY DRLP DCY2 11 B ( IG ) ( IG ) 7. 5A GAUGE ECU–IG 8 1F 6 IO3 R–L B–R W–B W–B...
Page 159 Interior Light B 4 ( A ) , B 5 ( B ) , B 6 ( C ) B 8 ( A ) , B 9 ( B ) Body ECU Back Door ECU BECU MPX2 MPX2 BECU FULL ( BAT ) 4 1B ECU–B...
Page 160 System Outline The interior light is controlled by the body ECU. This system has following features. 1. Normal Operation ∗ When one of the doors opened, the interior light, luggage compartment light and open door warning light is turned on. When the all doors are closed, the interior light, luggage compartment light and open door warning light is turned off.
Page 161 Interior Light : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel) Instrument Panel Wire and Floor No.2 Wire (Left Kick Panel) Engine Wire and Instrument Panel Wire (Right Side of Blower Unit)
Page 162 Memo 4RUNNER (EM03M0U)
Page 163 Taillight and Illumination 13 1F TRLY B 6 ( C ) 140A Body ECU TAIL Tail Head W–B W–B Junction Connector 4RUNNER (EM03M0U)
Page 164 ∗ 1 : w/ Navigation System Junction Connector ∗ 2 : w/o Navigation System 10 BD1 W–B W–R ( ∗1 ) J40 ( A ) , J41 ( B ) J16 ( A ) , J17 ( B ) Junction Connector Junction Connector W–R ( ∗2 )
Page 165 Taillight and Illumination D 3D D 3D D 3D ( ∗5 ) ( ∗6 ) ILL+ ( ∗7 ) ILL+ ILL+ ILL+B ( ∗8 ) ILL– ILL– ILL– ( ∗5 ) ( ∗6 ) ( ∗3 ) ( ∗4 ) ELS1 ( ∗3 ) ELS2 ( ∗4 ) E 7 ( D )
Page 166 ∗ 1 : w/ Navigation System ∗ 2 : w/o Navigation System ∗ 3 : 2UZ–FE ∗ 4 : 1GR–FE ∗ 5 : Except 6 Speaker ∗ 6 : 6 Speaker ∗ 7 : w/ CD Changer ∗ 8 : w/o CD Changer 1 IR1 3 IR1 2 IR1...
Page 167 Taillight and Illumination ( IG ) ( BAT ) 7. 5A ( IG ) GAUGE DOME ∗ 3 : 2UZ–FE ∗ 4 : 1GR–FE Junction Connector J20 ( A ) Junction Connector ILL– – W–G W–B Junction Junction W–G Connector Connector 4RUNNER (EM03M0U)
Page 168 : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 34 (1GR–FE) 32 (2UZ–FE) 34 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location)
Page 169 Taillight and Illumination : Ground Points Code See Page Ground Points Location 44 (2UZ–FE) Front Right Fender Front Right Fender 45 (1GR–FE) 44 (2UZ–FE) Front Left Fender Front Left Fender 45 (1GR–FE) 44 (2UZ–FE) Left Bank Cylinder Head 44 (2UZ–FE) Rear Side of Cylinder Block 45 (1GR–FE) Rear Side of Right Bank Cylinder Block...
Page 170 Memo 4RUNNER (EM03M0U)
Page 171 Stop Light ( BAT ) ( IG ) STOP 20 1E Junction Connector Y–R G–W Stop Light Junction Connector STPO Skid Control ECU with Actuator Junction Connector G–B G–B 4RUNNER (EM03M0U)
Page 172 ∗ 1 : w/ Rear Spoiler ∗ 2 : w/o Rear Spoiler G–Y 3 BD1 10 BD1 G–B 4RUNNER (EM03M0U)
Page 173 Stop Light : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 33 (2UZ–FE) 35 (1GR–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location)
Page 174 Memo 4RUNNER (EM03M0U)
Page 175 Back–Up Light ( IG ) R–Y Junction Connector Junction Connector Junction Connector Park/Neutral Position SW Junction Connector J40 ( A ) , J41 ( B ) Junction Connector Y–R B/UP Trailer Socket J40 ( A ) , J41 ( B ) Junction Connector 4RUNNER (EM03M0U)
Page 176 : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 35 (1GR–FE) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Floor No.2 Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) : Connector Joining Wire Harness and Wire Harness...
Page 177: Key Reminder
Key Reminder ( BAT ) ( IG ) ( ACC ) ( IG ) ( BAT ) 7. 5A 7. 5A ECU–B ECU–IG GAUGE DOME BECU B 5 ( B ) , B 6 ( C ) Body ECU DCTY GND2 GND1 DCY2...
Page 178 System Outline Key Reminder System With the ignition key inserted in the key cylinder (Unlock warning SW on), the ignition SW still off and driver’s door open (Door courtesy SW on), when a signal is input to TERMINAL (B) 23 of the body ECU, the body ECU operates, current flows from TERMINAL (C) 15 of the ECU to TERMINAL (B) 19 of the combination meter to GROUND and key reminder buzzer sounds.
Page 179 Seat Belt Warning G–Y ( BAT ) ( IG ) ( ACC ) 7. 5A ( IG ) ( BAT ) ( IG ) ECU–B ECU–IG 7. 5A DOME GAUGE 8 1J Junction Connector Junction Connector BECU DBKL R–L GND2 GND1 B 4 ( A ) Body ECU...
Page 180 G–Y J20 ( A ) , J21 ( B ) Junction Connector C 9 ( B ) , C10 ( C ) Combination Meter Buzzer R–L PBEW PBEW FSR+ FSR– ( ∗3 ) ( ∗4 ) Buckle SW LH Junction A 3C FSR+ FSR–...
Page 181 Seat Belt Warning System Outline When the driver has not fastened the seat belt while the ignition SW is ON, the driver seat belt warning light blinks, and a warning buzzer comes on. Also, in the front passenger seat, a sensor recognizes passenger, and when the passenger has not fastened the seat belt, the front passenger seat belt warning light blinks.
Page 182 Memo 4RUNNER (EM03M0U)
Page 183 Garage Door Opener ( BAT ) DOME DOME Relay LMRY Body ECU Garage Door Opener Junction Connector 4RUNNER (EM03M0U)
Page 184 : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Roof Wire and Driver Side J/B (Lower Finish Panel) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
Page 185 Front Wiper and Washer ( IG ) FR WIP–WSH Combination SW 22 1E Wiper Relay L–Y L–Y Washer Motor W–B L–W L–W L–B L–B L–R L–R Front Wiper and Washer SW Front Wiper Motor Junction Connector 4RUNNER (EM03M0U)
Page 186 System Outline With the ignition SW turned on, the current flows to TERMINAL 17 of the wiper and washer SW, TERMINAL 1 of the washer motor and TERMINAL 2 of the front wiper motor through the FR WIP–WSH fuse. 1. Low Speed Position With the wiper and washer SW turned to LO position, the current flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to GROUND and causes the front wiper motor to run at low speed.
Page 187 Rear Wiper and Washer B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ( BAT ) ( IG ) ( ACC ) ( IG ) 7. 5A BECU GND2 GND1 ECU–B ECU–IG 8 1F...
Page 188 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU WMTR RWON RWINT MPX2 10 C 23 A 1 1B BR–R 3 IC3 Washer Washer Combination SW W–R W–R B–R B–R W–B 4RUNNER (EM03M0U)
Page 189 Rear Wiper and Washer B 8 ( A ) , B 9 ( B ) Back Door ECU MPX2 IC– HALF FULL BECU 11 B 17 B 16 B 23 B 9 BD1 5 BD1 BR–R SSRB PLS2 Back Door Courtesy SW Back Door Half Latch SW Back Door Power Window Motor Junction...
Page 190 B 8 ( A ) , B 9 ( B ) Back Door ECU ( BAT ) SGND WIP+ WIP– POWER 18 B 12 B 2 1F 6 BD1 Return Position Furthest Position Stop Rear Wiper Motor Rear Wiper Position SW 4RUNNER (EM03M0U)
Page 191 Rear Wiper and Washer System Outline ∗ Rear wiper operation The back door ECU initiates rear wiper intermittent or continuous operation according to rear wiper SW command from the body ECU. At this point, the position of the back door window is confirmed and, if it is not fully closed, the command will be neglected preventing the rear wiper from starting.
Page 192 Memo 4RUNNER (EM03M0U)
Page 193 Power Window B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ( BAT ) ( ACC ) 7. 5A BDR1 DR/LCK 19 B G–W DOWN Back Door Power Window Control SW 4RUNNER (EM03M0U)
Page 194 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU GND1 GND2 ( BAT ) ( IG ) POWER ECU–IG 1 1H 2 1F 8 1F 28 1J Junction Connector W–B B–R B–R L–O...
Page 195 Power Window B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU W/L 1 W/L 2 Power Window Motor Front RH L–B J22 ( A ) , J23 ( B ) Power Window Control SW Junction Front RH...
Page 196 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU Power Window Master SW R–B Power Window Control Power Window Control SW Rear RH SW Rear LH 5 BA1 W–B W–B B–R B–R B–R...
Page 197 Power Window B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU BZR2 Power Window Master SW PLS2 SSRB PLS2 Junction Connector Power Window Motor Front LH W–B W–B B–R B–R L–O L–O 4RUNNER (EM03M0U)
Page 198 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU DCTY PCTY RLCY RRCY 11 B ( BAT ) DOME 6 IO3 10 IC4 Junction Connector Door Control Receiver W–B W–B B–R B–R L–O...
Page 199 Power Window B 4 ( A ) , B 5 ( B ) , B 6 ( C ) B 8 ( A ) , B 9 ( B ) Body ECU Back Door ECU BECU MPX2 MPX2 BECU ( BAT ) 12 1F ECU–B 40 IE1...
Page 200 B 8 ( A ) , B 9 ( B ) Back Door ECU DOWN BDUP BDDN IC– HALF FULL 21 B SSRB PLS2 Tailgate Control SW Back Door Courtesy SW Back Door Half Latch SW Back Door Power Window Motor 4RUNNER (EM03M0U)
Page 201 Power Window System Outline ∗ The power window system is controlled by the body ECU. This system has following features. 1. Manual Up and Down Function This function causes the window to open or close while the power window switch is being pulled halfway up or pushed halfway down.
Page 202 : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel) Floor No.2 Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
Page 203 Door Lock Control B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ( IG ) ( BAT ) ( IG ) ( BAT ) ( ACC ) BDR1 DRLP DCY2 11 C 1 1G Skid Control...
Page 204 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU DCTY PCTY RLCY RRCY 23 B 24 B 12 B 5 1K Door Lock Control SW Front LH Junction Connector 6 IO3 5 IA1 4 IA1 L–O...
Page 205 Door Lock Control B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU LSWD ACTD LSWP ACT+ ACT– Door Lock Control SW Front RH 6 1L 5 IP1 L–O 4 IP2 L–W Door Key Lock and Unlock SW Front LH Door Lock Detection...
Page 206 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU GND2 GND1 DBKL 14 A 13 A 11 1L 10 1L 6 IC4 1 EA1 ( ∗1 ) 3 EA2 ( ∗2 ) Door Lock Detection SW Door Lock Detection SW Rear LH...
Page 207 Door Lock Control B 4 ( A ) , B 5 ( B ) , B 6 ( C ) B 8 ( A ) , B 9 ( B ) Body ECU Back Door ECU ( IG ) ( BAT ) ( BAT ) MPX2 BECU...
Page 208 B 8 ( A ) , B 9 ( B ) Back Door ECU HALF FULL ACT+ ACT– HSW+ HSW– Back Door Courtesy SW Back Door Half Latch SW Back Door Lock Detection SW Back Door Lock Motor J40 ( A ) , J41 ( B ) Junction Connector 4RUNNER (EM03M0U)
Page 209 Door Lock Control System Outline The door lock control is controlled through the various signal input into the body ECU through communication control of the body ECU etc. 1. Manual Unlock Operation When the door lock control SW of the driver’s or passenger’s side door is pushed to UNLOCK, the door will unlock. 2.
Page 210 : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 34 (1GR–FE) 42 (*1) 42 (*1) 43 (*2) 43 (*2) 42 (*1) 43 (*2) 42 (*1) 33 (2UZ–FE) 35 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location)
Page 211 Door Lock Control : Ground Points Code See Page Ground Points Location 44 (2UZ–FE) Left Bank Cylinder Head 45 (1GR–FE) Rear Side of Right Bank Cylinder Block Left Kick Panel Right Kick Panel Floor Seat Crossmember LH Rear Pillar LH 4RUNNER (EM03M0U)
Page 212 Memo 4RUNNER (EM03M0U)
Page 213 Wireless Door Lock Control B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ( BAT ) ( BAT ) ( ACC ) 7. 5A BDR1 TRLY HRLY GND2 DR/LCK 8 1B 14 1J 2 1H Turn Signal...
Page 214 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU GND1 TOUT DCTY PCTY RLCY RRCY 11 B ( BAT ) HORN 6 IO3 7 1A 8 1A ( ∗4 ) ( ∗3 ) W ( ∗3 ) W ( ∗4 )
Page 215 Wireless Door Lock Control B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU MPX3 BZR2 ( IG ) ( BAT ) BR–Y ECU–IG SECU/HORN 8 1F 28 1J MPX1 HORN SH–...
Page 216 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU LSWD ACTD LSWP ACT+ ACT– 6 1L 11 1L 10 1L Door Lock Detection SW Door Lock Detection SW Door Lock Detection SW Door Lock Detection Front LH Front RH...
Page 217 Wireless Door Lock Control B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU LMRY DRLP Junction Connector ( BAT ) DOME 17 A Door Control Receiver W–B 16 C DOME Relay J 8 ( A ) , J 9 ( B ) Junction...
Page 218 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) B 8 ( A ) , B 9 ( B ) Body ECU Back Door ECU ( BAT ) BECU MPX2 MPX2 BECU POWER ( BAT ) 4 1L...
Page 219 Wireless Door Lock Control B 8 ( A ) , B 9 ( B ) Back Door ECU HALF FULL ACT+ ACT– Back Door Courtesy SW Back Door Half Latch SW Back Door Lock Detection SW Back Door Lock Motor 4RUNNER (EM03M0U)
Page 220 System Outline Door lock control (Lock and unlock), back window control (Back window open) and panic control (Theft alarm and flash) is performed by remote control, without the ignition key inserted in the door key cylinder, using low–power electrical waves emitted by a transmitter.
Page 221 Wireless Door Lock Control : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 35 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...
Page 222 : Ground Points Code See Page Ground Points Location Left Kick Panel Instrument Panel Brace RH Right Kick Panel Floor Seat Crossmember LH Rear Pillar LH 4RUNNER (EM03M0U)
Page 223 Theft Deterrent B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ( BAT ) ( BAT ) ( ACC ) 7. 5A BDR1 TRLY HRLY GND2 GND1 DR/LCK 1 1C 2 1H 7 1A 8 1A...
Page 224 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU LMRY DCTY PCTY RLCY RRCY DRLP 11 B ( BAT ) DOME 6 IO3 14 1J Turn Signal Turn Signal Flasher Relay Flasher Relay ∗...
Page 225 Theft Deterrent B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU TOUT ( IG ) ( BAT ) ( BAT ) ECU–IG SECU/HORN HORN HORN Security Indicator Light DSWH HORN Relay SIND 13 1K...
Page 226 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU MPX3 LSWD ACTD LSWP BR–Y 2 IN1 B–W L–R Theft Deterrent Horn SH– MPX1 Theft Deterrent ECU Junction Junction Connector Connector Door Key Lock and Unlock SW Front LH Door Lock Detection SW Front LH Door Lock Motor Front LH...
Page 227 Theft Deterrent B 4 ( A ) , B 5 ( B ) , B 6 ( C ) Body ECU ACT+ ACT– BECU 6 1L 11 1L 10 1L 4 1L B–W L–R W–R Door Lock Detection Door Lock Detection Door Lock Detection SW Front RH SW Rear LH...
Page 228 B 4 ( A ) , B 5 ( B ) , B 6 ( C ) B 8 ( A ) , B 9 ( B ) Body ECU Back Door ECU MPX2 MPX2 BECU HALF FULL ( BAT ) ( BAT ) ECU–B POWER...
Page 229 Theft Deterrent : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 34 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location)
Page 230 : Ground Points Code See Page Ground Points Location 44 (2UZ–FE) Front Left Fender Front Left Fender 45 (1GR–FE) Left Kick Panel Instrument Panel Brace RH Right Kick Panel Floor Seat Crossmember LH Rear Pillar LH 4RUNNER (EM03M0U)
Page 231 ECT and A/T Indicator for 2UZ–FE Data Link Connector 3 ( BAT ) ( BAT ) ETCS CANH CANL C 3C ST–Plug W–G C 3C 12 IC4 Relay 23 E MREL BATT CANH CANL E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module SLT+ SLT–...
Page 232 ( BAT ) STOP Accel Position Sensor Stop Light SW VPA1 VPA2 VCP1 VCP2 Junction Connector VPA2 VCPA VCP2 EPA2 E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module SL1+ SL1–...
Page 233 ECT and A/T Indicator for 2UZ–FE ( ST ) 7. 5A NO. 2 Park/Neutral Position SW B–Y STA Relay NT– SP2+ SP2– STSW STAR/ E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module VTA1 VTA2...
Page 234 ( IG ) G–R Transmission Control SW NSSL NSSD G 3C IGSW E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module OILW 29 D...
Page 235 ECT and A/T Indicator for 2UZ–FE ( IG ) G–R Y–R Junction Connector Y–R G–R G–B R–Y R–Y G–W P–L P–L B–L B–L V–R V–R 4RUNNER (EM03M0U)
Page 236 ( IG ) ( BAT ) Skid Control ECU with Actuator 7. 5A Junction GAUGE DOME Connector G–B 18 D 14 D R–Y G–W P–L B–L V–R V–R 4RUNNER (EM03M0U)
Page 237 ECT and A/T Indicator for 2UZ–FE System Outline Previous automatic transmissions have selected each gear shift using mechanically controlled throttle hydraulic pressure, governor hydraulic pressure and lock–up hydraulic pressure. The electronically controlled transmission, however, electrically controls the line pressure, throttle pressure, lock–up pressure and accumulator pressure etc. through the solenoid valve. The electronically controlled transmission is a system which precisely controls gear shift timing and lock–up timing in response to the vehicle’s driving conditions and the engine condition detected by various sensors.
Page 238 : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 32 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code...
Page 239 ECT and A/T Indicator for 1GR–FE Data Link Connector 3 ( BAT ) ( BAT ) ETCS CANH CANL ST–Plug 12 IC4 Relay 33 D 34 D MREL BATT CANH CANL E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module SLT+ SLT–...
Page 240 ( BAT ) STOP Accel Position Sensor Stop Light SW VPA1 VPA2 VCP1 VCP2 Junction Connector VPA2 VCPA VCP2 EPA2 E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module SL1+ SL1–...
Page 241 ECT and A/T Indicator for 1GR–FE ( ST ) 7. 5A NO. 2 2 1K Park/Neutral Position SW 4 IM2 B–Y STA Relay 35 B 27 B 34 B 26 B 11 C NT– SP2+ SP2– STSW STAR/NSW E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module VTA1 VTA2...
Page 242 ( IG ) G–R Transmission Control SW NSSL NSSD 11 1J D 3E G 3C G 3C D 3E 10 D IGSW E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module OILW 35 D...
Page 243 ECT and A/T Indicator for 1GR–FE ( IG ) G–R Y–R Junction Connector Y–R G–R G–B R–Y R–Y G–W P–L P–L B–L B–L V–R V–R 4RUNNER (EM03M0U)
Page 244 ( IG ) ( BAT ) Skid Control ECU 7. 5A with Actuator Junction GAUGE DOME Connector G–B 18 D 17 D 14 D R–Y G–W P–L B–L V–R V–R 4RUNNER (EM03M0U)
Page 245 ECT and A/T Indicator for 1GR–FE System Outline Previous automatic transmissions have selected each gear shift using mechanically controlled throttle hydraulic pressure, governor hydraulic pressure and lock–up hydraulic pressure. The electronically controlled transmission, however, electrically controls the line pressure, throttle pressure, lock–up pressure and accumulator pressure etc. through the solenoid valve. The electronically controlled transmission is a system which precisely controls gear shift timing and lock–up timing in response to the vehicle’s driving conditions and the engine condition detected by various sensors.
Page 246 : Parts Location Code See Page Code See Page Code See Page 34 (1GR–FE) 34 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code...
Page 247 Cruise Control for 2UZ–FE Data Link Connector 3 ( BAT ) ( BAT ) ETCS CANH CANL 12 IC4 Relay 34 D MREL BATT CANH CANL E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module SLT+ SLT–...
Page 248 ( IG ) Transmission Control SW NSSD Accel Position Sensor VPA1 VPA2 VCP1 VCP2 Y–R Junction Connector VPA2 VCPA VCP2 EPA2 E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module SL1+ SL1–...
Page 249 Cruise Control for 2UZ–FE ( BAT ) ( IG ) STOP 23 1E B–O B–O Junction Connector J 8 ( A ) Junction Connector J31 ( A ) , J32 ( B ) Junction Connector 11 IC3 16 E ST1– IGSW E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module...
Page 250 ( IG ) ( BAT ) 7. 5A GAUGE DOME Junction Connector J 8 ( A ) , J 9 ( B ) Junction Connector Skid Control ECU with Actuator V–R V–R 4RUNNER (EM03M0U)
Page 251 Cruise Control for 2UZ–FE System Outline The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes it possible to automatically adjust the opening of the engine throttle valve without depressing of the accel pedal. 1.
Page 252 : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 33 (2UZ–FE) 32 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) 33 (2UZ–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...
Page 253 Cruise Control for 1GR–FE Data Link Connector 3 ( BAT ) ( BAT ) ETCS CANH CANL 12 IC4 Relay 34 D MREL BATT CANH CANL E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module SLT+ SLT–...
Page 254 ( IG ) Transmission Control SW NSSD Accel Position Sensor VPA1 VPA2 VCP1 VCP2 Y–R Junction Connector VPA2 VCPA VCP2 EPA2 E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module SL1+ SL1–...
Page 255 Cruise Control for 1GR–FE ( BAT ) ( IG ) STOP 23 1E B–O B–O Junction Connector J 8 ( A ) Junction Connector J31 ( A ) , J32 ( B ) Junction Connector 11 IC3 16 E ST1– IGSW E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module...
Page 256 ( IG ) ( BAT ) 7. 5A GAUGE DOME Junction Connector J 8 ( A ) , J 9 ( B ) Junction Connector Skid Control ECU with Actuator V–R V–R 4RUNNER (EM03M0U)
Page 257 Cruise Control for 1GR–FE System Outline The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes it possible to automatically adjust the opening of the engine throttle valve without depressing of the accel pedal. 1.
Page 258 : Parts Location Code See Page Code See Page Code See Page 35 (1GR–FE) 34 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...
Page 259 ABS, TRAC, VSC, Auto LSD, DAC and HAC ( BAT ) ( BAT ) ( IG ) ABS MTR ABS SOL ∗ 1 : 2UZ–FE ∗ 2 : 1GR–FE 4WD ∗ 3 : w/ Electric Modulated Air Suspension ∗ 4 : w/o Electric Modulated Air Suspension Junction Connector 31 A...
Page 260 ( BAT ) ( IG ) G–W Y–R 8 1J Y–R STOP Junction Connector Y–R G–B Junction Connector Y–R STP2 STPO S28 ( A ) , S29 ( B ) Skid Control ECU with Actuator EXI3 EXI4 HDCS W–B ( ∗1 ) 2 IC2 Transfer Shift ADD Actuator...
Page 261 ABS, TRAC, VSC, Auto LSD, DAC and HAC B–R ( IG ) R–Y R–B ECU–IG R–W 12 1E B–R Junction Connector WFSE S28 ( A ) , S29 ( B ) Skid Control ECU with Actuator CANL CANH INFR VSCW HDCW BR–Y ( 4WD ) Y–R...
Page 262 B–R B–R R–Y R–Y R–B R–B R–W R–W ∗ 1 : 2UZ–FE ( IG ) ( BAT ) ∗ 2 : 1GR–FE 4WD ∗ 5 : 2UZ–FE 2WD ∗ 6 : 2UZ–FE 4WD 7. 5A ∗ 7 : 1GR–FE 2WD GAUGE DOME ∗...
Page 263 ABS, TRAC, VSC, Auto LSD, DAC and HAC B–R R–Y R–Y R–B R–B R–W R–W ( BAT ) ECU–B J20 ( A ) Junction Connector B 3E B 3E CANL CANH CANL CANH Yaw Rate Sensor W–B W–B 4RUNNER (EM03M0U)
Page 264 R–Y R–B R–W J18 ( A ) Junction Connector Engine Control Module WFSE CANH CANL CANH CANL ST–Plug J47 ( A ) , J48 ( B ) , J49 ( C ) , J50 ( D ) , J51 ( E ) , J52 ( F ) Junction Connector 4RUNNER (EM03M0U)
Page 265 ABS, TRAC, VSC, Auto LSD, DAC and HAC System Outline 1. Normal Operation The VSC system helps prevent the vehicle from slipping sideways as a result of strong front wheel skid or strong rear wheel skid during cornering. The followings are two possible circumstances in which the tires exceed their lateral grip limit. The VSC system is designed to help control the vehicle behavior by controlling the engine output and the brake at each wheel when the vehicle is under one of the conditions indicated below.
Page 266 : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 35 (1GR–FE) 34 (1GR–FE) 33 (2UZ–FE) 32 (2UZ–FE) 35 (1GR–FE) 34 (1GR–FE) 34 (1GR–FE) 32 (2UZ–FE) 33 (2UZ–FE) 34 (1GR–FE) 35 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) 33 (2UZ–FE)
Page 267 ABS, TRAC, VSC, Auto LSD, DAC and HAC : Ground Points Code See Page Ground Points Location 44 (2UZ–FE) Front Right Fender Front Right Fender 45 (1GR–FE) 44 (2UZ–FE) Front Left Fender Front Left Fender 45 (1GR–FE) 44 (2UZ–FE) Left Bank Cylinder Head 44 (2UZ–FE) Rear Side of Cylinder Block 45 (1GR–FE)
Page 268 Memo 4RUNNER (EM03M0U)
Page 269 AHC and Electric Modulated Air Suspension ( BAT ) ( IG ) Data Link Connector 3 Height Control Sensor Rear LH AIR SUS ECU–IG SHRL L–Y 17 BC2 AIRSUS NO. 2 SBL2 SHRL SGL2 S13 ( A ) , S14 ( B ) , S15 ( C ) Suspension Control ECU RM–...
Page 270 ( BAT ) ( IG ) Height Control Sensor Rear RH STOP SHRR G–W Y–R STOP Stop Light LP CTRL Relay Y–R Junction Connector 12 B SBR2 SHRR SGR2 S13 ( A ) , S14 ( B ) , S15 ( C ) Suspension Control ECU SLRL SLRR...
Page 271 AHC and Electric Modulated Air Suspension Skid Control ECU Body ECU with Actuator ACTY DCTY PCTY RLCY RRCY STPO 12 IC5 37 IE1 6 IO3 DOOR S13 ( A ) , S14 ( B ) , S15 ( C ) Suspension Control ECU TACH 13 IC5...
Page 272 ( IG ) ( BAT ) 7. 5A GAUGE DOME 4 1G J 8 ( A ) , J 9 ( B ) Junction Connector 10 IC4 C 8 ( A ) , C 9 ( B ) , C10 ( C ) Combination Meter 15 C 16 C...
Page 273 AHC and Electric Modulated Air Suspension System Outline ∗ The electric modulated suspension with height control is a system designed to maintain a constant vehicle height by means of an electro–pneumatic system in the rear suspension to cope with change in load such as passenger number and/or weight of cargo in the vehicle.
Page 274 : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) Floor No.2 Wire and Engine Room Main Wire (Left Kick Panel) Floor No.2 Wire and Engine Room Main Wire (Left Kick Panel) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
Page 275 Multi Mode 4WD ( IG ) ( IG ) W–B Transfer Shift Actuator 22 B 25 B 24 B F 9 ( A ) , F10 ( B ) 4WD Control ECU 2–4 22 A ( ∗2 ) ( ∗2 ) 2–4 ( ∗1 ) ( ∗1 )
Page 276 W–L W–B ∗ 1 : 1GR–FE ∗ 2 : 2UZ–FE V–R W–G W–L ( ∗1 ) G–R G–R 24 A 19 A 20 A 11 A IND1 IND2 IND3 F 9 ( A ) , F10 ( B ) 4WD Control ECU W–B ( ∗1 ) G–R...
Page 277 Multi Mode 4WD ∗ 1 : 1GR–FE ∗ 2 : 2UZ–FE W–L ( BAT ) DOME V–R W–G ( ∗1 ) EXI4 GR–R GR–R V–R W–G ( ∗1 ) G–R G–R BR–W BR–W 4RUNNER (EM03M0U)
Page 278 ( IG ) 7. 5A GAUGE C 9 ( B ) , C10 ( C ) , C11 ( D ) Combination Meter W–G ( ∗1 ) G–R BR–W 4RUNNER (EM03M0U)
Page 279 Multi Mode 4WD System Outline Depending on the transfer shift actuator status and ADD actuator (1GR–FE) status, the 4WD control ECU drives the transfer shift actuator and ADD actuator (1GR–FE) to electrically change the gear position selected by the driver according to vehicle speed signal and neutral start switch signal.
Page 280 : Parts Location Code See Page Code See Page Code See Page 34 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...
Page 281 Memo 4RUNNER (EM03M0U)
Page 282 NOTICE: When inspecting or repairing the SRS, perform service in accordance with the following precautionary instructions and the procedure, and precautions in the Repair Manual applicable for the model year. D Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information when troubleshooting.
Page 283 Curtain Shield Curtain Shield Side Airbag Sensor Rear LH Side Airbag Sensor Rear RH Side Airbag Squib LH Airbag Squib LH Airbag Squib RH CSL+ CSL– VUCL ESCL CSR+ CSR– VUCR ESCR 10 A CSL+ CSL– VUCL ESCL CSR+ CSR– VUCR ESCR ICL+...
Page 284 ( IG ) ( IG ) ∗ 1 : w/ Side Airbag ∗ 2 : w/o Side Airbag Buckle SW LH Seat Position Airbag Sensor 20 1L Buckle SW Side Airbag Squib RH Passenger Seat Belt Warning Light PAON P–AB Y–R Junction ( ∗1 )
Page 285 ∗ 1 : w/ Side Airbag ( IG ) ∗ 2 : w/o Side Airbag ∗ 3 : w/ Power Seat ( Front Passenger' s Seat ) ∗ 4 : w/o Power Seat ( Front Passenger' s Seat ) 7. 5A GAUGE Data Link Connector 3 B16 ( A ) , ( B )
Page 286 ( IG ) ( BAT ) ECU–B Occupant Classification Occupant Classification Sensor Front LH Sensor Front RH SVC1 SIG1 SGD1 SVC2 SIG2 SGD2 11 B SVC1 SIG1 SGD1 SVC2 SIG2 SGD2 O 3 ( A ) , O 4 ( B ) Occupant Classification ECU SVC3 SIG3...
Page 287 System Outline ∗ The system reaches an ignition judgment to deploy the following device based on the signals received from the front airbag sensor and deceleration sensor. – Driver Airbag – Front Passenger Airbag – Seat Belt Pretensioner ∗ The system reaches an ignition judgment to deploy the following device based on the signals received from the side airbag sensors.
Page 288 : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Center J/B (Instrument Panel Brace RH) Instrument Panel Wire and Center J/B (Instrument Panel Brace RH)
Page 289: Moon Roof
Moon Roof B 5 ( B ) ( BAT ) ( IG ) Body ECU POWER ECU–IG DCTY Moon Roof Control ECU M– CLOSE OPEN SLIDE 5 1A Moon Roof Control SW W–B V–R Junction Connector 4RUNNER (EM03M0U)
Page 290 ∗ 1 : 2UZ–FE ∗ 2 : 1GR–FE ( IG ) ( BAT ) 7. 5A GAUGE DOME Junction Connector J 8 ( A ) , J 9 ( B ) Junction Connector C 9 ( B ) , C10 ( C ) Combination Meter V–R Skid Control ECU...
Page 291 Moon Roof System Outline Current is always applied from the POWER fuse to TERMINAL 10 of the moon roof control ECU. With the ignition SW turned on, the current flows to TERMINAL 9 of the moon roof control ECU. 1. Moon Roof Open/Close Operation For moon roof operation, there are moon roof control switches: ”Slide open/tilt down”;...
Page 292 : Ground Points Code See Page Ground Points Location 44 (2UZ–FE) Left Bank Cylinder Head 44 (2UZ–FE) Rear Side of Cylinder Block 45 (1GR–FE) Rear Side of Right Bank Cylinder Block Left Kick Panel 4RUNNER (EM03M0U)
Page 293: Shift Lock
Shift Lock ( ACC ) ( BAT ) ( IG ) 7. 5A STOP ECU–IG Stop Light SW Junction Connector E 3C Junction Connector Junction F 3E Connector Shift Lock Control ECU KLS+ A 3D A 3D B 3F W–B B 3F W–B Junction...
Page 294 System Outline When the ignition SW is turned to ACC position the current from the ACC fuse flows to TERMINAL 6 of the shift lock control ECU. When the ignition SW is turned to ON position, the current from the ECU–IG fuse flows to TERMINAL 1 of the shift lock control ECU.
Page 295 Remote Control Mirror ( ACC ) ( BAT ) 7. 5A 17 IA1 Junction ACC CUT Connector Relay Remote Control Mirror SW Y–B Junction Connector ACCR Engine Control Module Junction Connector Remote Control Mirror LH Remote Control Mirror RH 4RUNNER (EM03M0U)
Page 296 : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Center J/B (Instrument Panel Brace RH) : Connector Joining Wire Harness and Wire Harness...
Page 297: Cigarette Lighter
Cigarette Lighter ( ACC ) Cigarette Lighter Junction Connector 4RUNNER (EM03M0U)
Page 298 : Parts Location Code See Page Code See Page Code See Page : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Center J/B (Instrument Panel Brace RH) : Connector Joining Wire Harness and Wire Harness Code See Page...
Page 299 Power Outlet for 12V ( ACC ) ( BAT ) 7. 5A OUTLET DC SKT Relay Power Outlet Power Outlet ( Front ) ( Rear ) Junction Junction Connector Connector 4RUNNER (EM03M0U)
Page 300 : Parts Location Code See Page Code See Page Code See Page : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Center J/B (Instrument Panel Brace RH) : Connector Joining Wire Harness and Wire Harness Code...
Page 301 Power Outlet for 115V ( IG ) ( BAT ) AC115V Y–R Junction Connector Y–R AC115V INV Relay 14 IE1 15 IE1 J14 ( A ) , J15 ( B ) Junction Connector Power Outlet ( 115V ) Junction Connector 4RUNNER (EM03M0U)
Page 302 : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location)
Page 303 Automatic Glare–Resistant EC Mirror with Compass ( IG ) Inner Mirror Junction Connector 4RUNNER (EM03M0U)
Page 304 : Parts Location Code See Page Code See Page Code See Page : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Roof Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) : Ground Points Code See Page...
Page 305 Horn ( BAT ) HORN HORN Relay 13 1K GR–B Horn ( High ) Horn ( Low ) Combination SW 4RUNNER (EM03M0U)
Page 306 : Parts Location Code See Page Code See Page Code See Page 32 (2UZ–FE) 32 (2UZ–FE) 34 (1GR–FE) 34 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location)
Page 307 Electric Tension Reducer ∗ 1 : w/ Driving Position Memory ∗ 2 : w/o Driving Position Memory ( IG ) Junction Connector Y–R Junction Connector Junction Connector 7 IO3 Tension Reducer Tension Reducer Solenoid LH Solenoid RH J45 ( A ) , J46 ( B ) Junction J43 ( A ) , J44 ( B ) Connector...
Page 308 : Parts Location Code See Page Code See Page Code See Page 42 (*1) 43 (*2) 43 (*2) 42 (*1) 42 (*1) 42 (*1) 43 (*2) 43 (*2) 43 (*2) 42 (*1) 42 (*1) 43 (*2) 42 (*1) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location)
Page 309 Power Seat for Driver’s Seat with Memory ( IG ) ( IG ) ( BAT ) ECU–IG ECU–B 8 1F Junction Connector Junction Junction Junction Connector Connector Connector Junction Connector Junction Connector Junction Connector Park/Neutral Position SW DCTY SYSB P27 ( A ) , P28 ( B ) Position Control ECU and SW SLD+ SLD–...
Page 310 ( BAT ) D P/SEAT W–B Seat Memory SW Junction Connector MMRY P27 ( A ) , P28 ( B ) J22 ( A ) , J23 ( B ) Position Control ECU and SW Junction Connector RCL+ RCL– LFT+ LFT–...
Page 311 Power Seat for Driver’s Seat with Memory System Outline ∗ In the power seat system, the position control ECU and SW receives the operation signal from the power seat control switch via infrared communication to operate each power seat motor and adjust the seat position. ∗...
Page 312 Memo 4RUNNER (EM03M0U)
Page 313 Power Seat for Driver’s Seat without Memory ( BAT ) D P/SEAT J43 ( A ) , J44 ( B ) Junction Connector Power Seat Control SW ( Driver' s Seat ) W–B ( ∗1 ) Front Slide Vertical Reclining Lifter 4RUNNER (EM03M0U)
Page 314 ∗ 1 : w/ Power Seat ( Front Passenger' s Seat ) W–B ( ∗1 ) J43 ( A ) , J44 ( B ) Junction Connector 4RUNNER (EM03M0U)
Page 315 Power Seat for Driver’s Seat without Memory : Parts Location Code See Page Code See Page Code See Page 42 (*1) 43 (*2) 42 (*1) 43 (*2) 42 (*1) 42 (*1) 42 (*1) 43 (*2) 42 (*1) 43 (*2) 42 (*1) 42 (*1) 42 (*1) : Junction Block and Wire Harness Connector...
Page 316 Memo 4RUNNER (EM03M0U)
Page 317 Power Seat for Front Passenger’s Seat ( BAT ) P P/SEAT 2 IO3 J45 ( A ) , J46 ( B ) Junction Connector Power Seat Control SW ( Front Passenger' s Seat ) Slide Reclining Power Seat Motor Power Seat Motor J45 ( A ) , J46 ( B ) ( Front Passenger' s Seat ( Front Passenger' s Seat...
Page 318 : Parts Location Code See Page Code See Page Code See Page 42 (*1) 43 (*2) 42 (*1) 43 (*2) 42 (*1) 42 (*1) 42 (*1) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) : Connector Joining Wire Harness and Wire Harness Code...
Page 319 Seat Heater Y–R ( BAT ) ( IG ) W–B 140A Seat Heater SW LH Junction Connector Y–R SEAT HEATER J43 ( A ) , J44 ( B ) Junction Connector Junction Connector Junction Connector Seat Heater LH F 3C J43 ( A ) , J44 ( B ) Junction Connector...
Page 320 ∗ 1 : w/ Driving Position Memory ∗ 2 : w/o Driving Position Memory Y–R W–B 18 IO3 Seat Heater RH Junction Junction Connector Connector 4RUNNER (EM03M0U)
Page 321 Seat Heater : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 43 (*2) 35 (1GR–FE) 42 (*1) 42 (*1) 33 (2UZ–FE) 43 (*2) 35 (1GR–FE) 42 (*1) 43 (*2) 42 (*1) 42 (*1) 42 (*1) 43 (*2) 42 (*1) : Relay Blocks...
Page 322 Memo 4RUNNER (EM03M0U)
Page 323 Trailer Towing ( BAT ) ( IG ) ( BAT ) BATT STOP Y–R Y–R Y–R Y–R G–W Junction Connector STPO Skid Control ECU with Actuator G–Y B–R R–Y R–Y G–Y Y–R ( ∗2 ) Y–R ( ∗1 ) 4RUNNER (EM03M0U)
Page 324 ∗ 1 : w/ Daytime Running Light ∗ 2 : w/o Daytime Running Light ( BAT ) ( BAT ) ( BAT ) ( BAT ) TOWING TAIL TOWING TOWING L–Y L–B 25 IC4 TAIL RTIN LTIN STOP RTOT LTOT STIN 4 BG1 TRLY...
Page 325 Trailer Towing ∗ 1 : w/ Daytime Running Light ∗ 2 : w/o Daytime Running Light ( BAT ) TRN–HAZ L–Y L–B B–Y ( ∗2 ) 5 1J Turn Signal Flasher Relay Turn Signal Flasher Relay Y–R ( ∗2 ) Y–R ( ∗1 ) 4RUNNER (EM03M0U)
Page 326 : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 33 (2UZ–FE) 35 (1GR–FE) 35 (1GR–FE) 33 (2UZ–FE) 33 (2UZ–FE) 35 (1GR–FE) 35 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) Engine Room R/B No.3 (Engine Compartment Left) : Junction Block and Wire Harness Connector...
Page 327 Tire Pressure Warning System ( IG ) Data Link Connector 3 ECU–IG Junction Connector Junction V–R Connector Junction Connector A 3A C 3C B 3D 1 1G J35 ( A ) , J36 ( B ) J29 ( A ) , J30 ( B ) Junction Junction V–R...
Page 328 ( IG ) ( BAT ) 7. 5A GAUGE DOME ∗ 1 : 2UZ–FE ∗ 2 : 1GR–FE Junction Connector J 8 ( A ) , J 9 ( B ) Junction Connector V–R C 8 ( A ) , C 9 ( B ) , C10 ( C ) Combination Meter 7 IC2 P–B...
Page 329 Tire Pressure Warning System System Outline The air pressure sensor installed in the tire wheel detects the tire air pressure and transmits signals to the vehicle side receiver. When the detected tire air pressure is below a specified level, the warning light in the combination meter comes on to inform the driver.
Page 330 Memo 4RUNNER (EM03M0U)
Page 331 Rear Window Defogger and Mirror Heater B 4 ( A ) , B 5 ( B ) Body ECU ( BAT ) ( IG ) ( ACC ) 140A 7. 5A RDEF GND2 GND1 B–R 2 1H Y–G Junction Connector W–B W–B 4RUNNER (EM03M0U)
Page 332 B 4 ( A ) , B 5 ( B ) Body ECU DEFSW DIND B–R Y–G DFSW DIND Junction Connector DEFOG HEATER Defogger SW 18 IP1 W–B B 3F B 3F W–B 4 IP2 W–B W–B Junction Connector 4RUNNER (EM03M0U)
Page 333 Rear Window Defogger and Mirror Heater B 4 ( A ) , B 5 ( B ) B 8 ( A ) , B 9 ( B ) Body ECU Back Door ECU BECU MPX2 MPX2 BECU IC– 23 A 11 B 17 B 16 B...
Page 334 System Outline ∗ Start control Turning the rear window defogger SW ON, with the ignition SW ON and the back door window fully closed, initiates operation of the rear window defogger and illuminates the indicator lamp for 15 minutes. ∗ Stop control When any one of the following conditions exists, rear window defogger operation comes to a stop and the indicator lamp goes out.
Page 335 Navigation, Parking Assist and Audio System R 9 ( D ) , R10 ( E ) , R11 ( F ) , R12 ( G ) , R26 ( B ) , R27 ( C ) ( BAT ) ( ACC ) ( BAT ) Radio and Player with Display 7.
Page 336 ∗ 1 : Shielded ∗ 2 : w/ Rear Seat Entertainment System R 9 ( D ) , R10 ( E ) , R11 ( F ) , R12 ( G ) , R26 ( B ) , R27 ( C ) Radio and Player with Display TXM+ TXM–...
Page 337 Navigation, Parking Assist and Audio System R 9 ( D ) , R10 ( E ) , R11 ( F ) , R12 ( G ) , R26 ( B ) , R27 ( C ) Radio and Player with Display VAL+ VAR+ VA–...
Page 338 R 9 ( D ) , R10 ( E ) , R11 ( F ) , R12 ( G ) , R26 ( B ) , R27 ( C ) Radio and Player with Display IVO+ IVO– SLD1 L– R– ATX+ ATX–...
Page 339 Navigation, Parking Assist and Audio System ∗ 3 : w/ Telephone Microphone R 9 ( D ) , R10 ( E ) , R11 ( F ) , R12 ( G ) , R26 ( B ) , R27 ( C ) ( BAT ) ( IG ) Radio and Player with Display...
Page 340 ( IG ) ( BAT ) 7. 5A GAUGE DOME Junction Connector J 8 ( A ) , J 9 ( B ) Junction Connector 7 IC2 11 1K V–R Skid Control ECU with Actuator 4RUNNER (EM03M0U)
Page 341 Navigation, Parking Assist and Audio System : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 35 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...
Page 342 : Ground Points Code See Page Ground Points Location 44 (2UZ–FE) Left Bank Cylinder Head 44 (2UZ–FE) Rear Side of Cylinder Block 45 (1GR–FE) Rear Side of Right Bank Cylinder Block Instrument Panel Brace RH Floor Seat Crossmember RH Rear Pillar RH 4RUNNER (EM03M0U)
Page 343 Audio System with 10 Speaker ( BAT ) ( ACC ) ( BAT ) Rear Seat Audio Controller 7. 5A RADIO NO. 1 ACC4 GND6 TX– LMUT F 3E F 3E Junction Connector 38 IC4 30 IC4 TXM+ TXM– MUTE R 1 ( A ) , R 4 ( B ) , R 5 ( C ) Radio and Player 20 A...
Page 344 ∗ 1 : w/ Rear Seat Entertainment System Rear Seat Audio Controller R– L– SGN2 NTS4 SGN5 AUXR AUXL OPEN NTSC SGND SGND AUXR AUXL CSLD CDR+ CDR– CDL+ CDL– R 1 ( A ) , R 4 ( B ) , R 5 ( C ) Radio and Player ASGN AUXI...
Page 345 Audio System with 10 Speaker ( Shielded ) L– R– R 1 ( A ) , R 4 ( B ) , R 5 ( C ) Radio and Player ATX+ ATX– MUTE 13 A W–R Antenna Amplifier SEEK+ MODE SEEK–...
Page 346 ( BAT ) RADIO NO. 2 Rear Door Rear Door Speaker LH Speaker RH ( Shielded ) 1 BB1 3 BB1 24 IO2 22 IO2 14 B R– L– RL– RR– S22 ( A ) , S23 ( B ) Stereo Component Amplifier MUTE TX–...
Page 347 Audio System with 10 Speaker ( IG ) ( BAT ) 7. 5A GAUGE DOME Woofer Junction Connector WF– WF– J 8 ( A ) , J 9 ( B ) Junction Connector 19 B 20 B WFL+ WFL– WFR+ WFR–...
Page 348 : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location)
Page 349 Audio System with 6 Speaker ( BAT ) ( BAT ) ( ACC ) Rear Seat Audio Controller 7. 5A RADIO NO. 1 ACC4 GND6 TX– LMUT Junction Connector F 3E Antenna Amplifier F 3E 38 IC4 30 IC4 TXM+ TXM–...
Page 350 ∗ 1 : w/ Rear Seat Entertainment System Rear Seat Audio Controller R– L– SGN2 NTS4 SGN5 AUXR AUXL OPEN 16 BJ1 NTSC SGND SGND AUXR AUXL CSLD CDR+ CDR– CDL+ CDL– R 2 ( A ) , R 3 ( B ) , R 4 ( C ) , R 5 ( D ) Radio and Player FL–...
Page 351 Audio System with 6 Speaker ( IG ) ( BAT ) 7. 5A GAUGE DOME Junction Connector J 8 ( A ) , J 9 ( B ) Junction Connector C 9 ( B ) , C10 ( C ) Combination Meter R 2 ( A ) , R 3 ( B ) , R 4 ( C ) , R 5 ( D ) Radio and Player...
Page 352 : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location)
Page 353 Combination Meter 20 D C 8 ( A ) , C 9 ( B ) , C10 ( C ) , C11 ( D ) Combination Meter Suspension Control ECU 4RUNNER (EM03M0U)
Page 354 ( BAT ) ( IG ) ( IG ) ( BAT ) 7. 5A TAIL GAUGE DOME Junction Connector C 8 ( A ) , C 9 ( B ) , C10 ( C ) , C11 ( D ) Combination Meter 15 C 16 C...
Page 355 Combination Meter Data Link Suspension B–W Connector 3 Control ECU V–R Radio and TACH Player with Radio and Display Player DMOT DMIN B–W ( 2UZ–FE ) B 3D B 3D J 8 ( A ) , J 9 ( B ) Body ECU B 3D Junction...
Page 356 ∗ 1 : w/ Moon Roof ∗ 2 : Canada B–W ∗ 3 : Except 6 Speaker ∗ 4 : w/ Daytime Running Light ∗ 5 : w/ Navigation System ∗ 6 : 6 Speaker TACH J29 ( A ) , J30 ( B ) Junction Connector V–R...
Page 357 Combination Meter C 8 ( A ) , C 9 ( B ) , C10 ( C ) , C11 ( D ) Combination Meter 20 C Skid Control ECU with Actuator 4RUNNER (EM03M0U)
Page 358 : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 35 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) 33 (2UZ–FE) 35 (1GR–FE) 33 (2UZ–FE) 33 (2UZ–FE) 35 (1GR–FE) 35 (1GR–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code...
Page 359 Air Conditioning Y–R ( BAT ) ( IG ) HEATER Y–R Y–R Y–R Junction Connector W–B HEATER Relay MG CLT B–Y Relay 7. 5A HEATER NO. 2 BR–Y W–G Y–G LG–R LG–B W–B W–B 4RUNNER (EM03M0U)
Page 360 Y–R ( ACC ) ( BAT ) ( BAT ) Junction 7. 5A Connector DOME F 3E Junction Connector F 3E ACC CUT Relay Junction Junction 30 IC4 Connector Connector J 8 ( A ) , J 9 ( B ) Junction Connector 16 IC3...
Page 361 Air Conditioning A16 ( A ) , A17 ( B ) A/C Control Assembly ( BAT ) ECU–B LIN1 VER1 LOCK TABC 18 A 4 1B B 3E 4 1L B 3E 1 IK1 2 IK1 W–R 24 D TACH L–B W–B ACCR...
Page 362 A16 ( A ) , A17 ( B ) A/C Control Assembly TPDR ( ∗1 ) AMCDR ( ∗1 ) AMHDR ( ∗1 ) TP ( ∗2 ) AMC ( ∗2 ) AMH ( ∗2 ) 21 A 25 A 23 B 14 B 22 A...
Page 363 Air Conditioning A16 ( A ) , A17 ( B ) A/C Control Assembly TPPA AMHPA AMCPA Air Inlet Control Air Vent Mode Air Mix Control Servo Motor Control Servo Servo Motor RH Motor Y–G Y–G Y–G Y–G L–B L–B 4RUNNER (EM03M0U)
Page 364 A16 ( A ) , A17 ( B ) A/C Control Assembly TSDR ( ∗1 ) TSPA TS ( ∗2 ) DMOT DMIN V–G ( ∗2 ) Y–G V–R W–L ( ∗2 ) BR–B L–B L–B ∗ 1 : Limited ∗...
Page 365 Air Conditioning ( IG ) ( IG ) 7. 5A GAUGE J 8 ( A ) , J 9 ( B ) Junction Connector C 9 ( B ) , C10 ( C ) Combination Meter V–R W–L BR–B L–B 4RUNNER (EM03M0U)
Page 366 System Outline 1. Heater Blower Operation Manual operation When the blower speed is set to a certain level using the blower control SW, the A/C control assembly sends the signals to the blower control to control the blower motor speed. Auto operation When the auto SW is pushed, the A/C control assembly sends the signals from various sensors and temperature SW to the blower control to automatically control the blower motor speed.
Page 367 Air Conditioning : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
Page 368 Memo 4RUNNER (EM03M0U)
Page 369 I GROUND POINT W–B Noise Filter ( Ignition No. 1 ) ( 2UZ–FE ) ( 2UZ–FE ) W–B STA Relay W–B W–B Air Switching Valve W–B IG Relay W–B Air Pump ( 2UZ–FE ) W–B DEFOG Relay W–B HEATER Relay W–B J 2 ( A ) , J 3 ( B ) Junction...
Page 370 W–B Ignition Coil and Igniter No. 4 W–B W–B Ignition Coil and ( GND ) Igniter No. 5 Transfer Shift Actuator W–B W–B Ignition Coil and ( GND ) Igniter No. 6 W–B W–B Ignition Coil and Ignition Coil and Igniter No.
Page 371 I GROUND POINT W–B W–B Door Control Rear Window Defogger Receiver W–B W–B W–B W–B Rear Combination License Plate Light Light RH W–B W–B W–B Rear Combination Back Door ECU Light LH W–B W–B High Mounted Power Outlet ( Rear ) Stop Light W–B W–B...
Page 372 ∗ 1 : w/ Daytime Running Light W–B ∗ 2 : w/o Daytime Running Light ∗ 3 : w/ Driving Position Memory J22 ( A ) , J23 ( B ) ∗ 4 : w/o Driving Position Memory Junction Connector W–B W–B W–B...
Page 373 I GROUND POINT W–B W–B Main SW W–B Diff. Lock SW W–B W–B Steering Sensor Rheostat W–B Towing Brake Controller W–B Auto LSD SW ( 2WD ) W–B W–B W–B Roll Sensing of Key Interlock Curtain Shield Solenoid Airbag Cutoff SW J14 ( A ) , J15 ( B ) W–B Junction...
Page 374 : Parts Location Code See Page Code See Page Code See Page 33 (2UZ–FE) 43 (*2) 35 (1GR–FE) 42 (*1) 33 (2UZ–FE) 43 (*2) 35 (1GR–FE) 42 (*1) 43 (*2) 42 (*1) 43 (*2) 42 (*1) 42 (*1) : Relay Blocks Code See Page Relay Blocks (Relay Block Location)
Page 375 I GROUND POINT : Ground Points Code See Page Ground Points Location 44 (2UZ–FE) Front Right Fender Front Right Fender 45 (1GR–FE) 44 (2UZ–FE) Front Left Fender Front Left Fender 45 (1GR–FE) 44 (2UZ–FE) Right Bank Cylinder Head 44 (2UZ–FE) Left Bank Cylinder Head 44 (2UZ–FE) Rear Side of Cylinder Block...
Page 376 Memo 4RUNNER (EM03M0U)
Page 377: 140A Alt
J POWER SOURCE (Current Flow Chart) The chart below shows the route by which current flows from the battery to each electrical source (Fusible Link, Circuit Breaker, Fuse, etc.) and other Parts. HEATER Relay 60A HEATER (Point Side) IG Relay 25A SEAT HEATER (Point Side) 10A MIR HEATER...
Page 378 Example Starter Parts Code or Location 7.5A HEATER NO.2 7.5A DRL 15A IG1 Location 10A ECU-IG Electrical Source 15A RR WSH 20A 4WD 30A FR WIP-WSH 50A A/PUMP 7.5A ACC 30A TOWING BRK 10A CIG 30A BATT CHG 40A TOWING 10A STOP 15A AC115V INV TAIL Relay...
Page 379 J POWER SOURCE (Current Flow Chart) Driver Side J/B (See Page 24) Fuse System Page Air Conditioning Audio System (10 Speaker) Audio System (6 Speaker) Automatic Light Control Door Lock Control Engine Control (1GR–FE) Engine Control (2UZ–FE) Headlight Interior Light Key Reminder Light Auto Turn Off System 7.5A...
Page 380 Fuse System Page Navigation System, Parking Assist (Rear View Monitor) and Audio System (w/ Navigation System) Seat Belt Warning 7.5A GAUGE Taillight and Illumination Tire Pressure Warning System Electronically Controlled Transmission and A/T Indicator (1GR–FE) Electronically Controlled Transmission and A/T Indicator (2UZ–FE) 7.5A STA NO.2 Engine Control (1GR–FE)
Page 381 J POWER SOURCE (Current Flow Chart) Fuse System Page Multiplex Communication System (BEAN) SECU/HORN Theft Deterrent Wireless Door Lock Control Combination Meter Engine Control (1GR–FE) TAIL Engine Control (2UZ–FE) Taillight and Illumination Trailer Towing ABS, TRAC, VSC, Auto LSD, Downhill Assist Control and Hill–Start Assist Control Active Height Control Suspension and Electric Modulated Air Suspension...
Page 382 Fuse System Page FR WIP–WSH Front Wiper and Washer P P/SEAT Power Seat (Front Passenger’s Seat) Door Lock Control Moon Roof Multiplex Communication System (BEAN) POWER Power Window Rear Wiper and Washer Theft Deterrent Wireless Door Lock Control Engine Room R/B (See Page 22) Fuse System Page...
Page 383 J POWER SOURCE (Current Flow Chart) Fuse System Page Taillight and Illumination Theft Deterrent DOME Tire Pressure Warning System Wireless Door Lock Control ABS, TRAC, VSC, Auto LSD, Downhill Assist Control and Hill–Start Assist Control Air Conditioning Automatic Light Control Door Lock Control Engine Immobiliser System Headlight...
Page 384 Fuse System Page Theft Deterrent HORN Wireless Door Lock Control Multiplex Communication System (BEAN) MIR HEATER Rear Window Defogger and Mirror Heater ABS, TRAC, VSC, Auto LSD, Downhill Assist Control and Hill–Start Assist Control Active Height Control Suspension and Electric Modulated Air Suspension Cruise Control (1GR–FE) Cruise Control (2UZ–FE) Electronically Controlled Transmission and A/T Indicator (1GR–FE)
Page 385 J POWER SOURCE (Current Flow Chart) Fuse System Page Audio System (10 Speaker) Audio System (6 Speaker) RADIO NO.1 Navigation System, Parking Assist (Rear View Monitor) and Audio System (w/ Navigation System) Audio System (10 Speaker) RADIO NO.2 Navigation System, Parking Assist (Rear View Monitor) and Audio System (w/ Navigation System) SEAT HEATER Seat Heater...
Page 386 Memo 4RUNNER (EM03M0U)
Page 387 K CONNECTOR LIST Black Gray Gray Gray Black 1 2 3 4 5 6 Dark Gray Dark Gray Yellow Yellow 11 12 13 14 16 17 Black Black Black 1 2 3 9 10 11 12 13 14 19 20 Black Black Black...
Page 388 Yellow Yellow Yellow Black 1 2 3 4 1 2 3 4 5 6 5 6 7 8 9 101112 7 8 9 101112 1415 171819 Black Black Blue Gray 1 2 3 4 5 6 1 2 3 4 Black Black Gray...
Page 389 K CONNECTOR LIST *1 : w/ Power Seat (Front Passenger’s Seat) *2 : w/o Power Seat (Front Passenger’s Seat) Blue Gray Black 4 5 6 7 8 3 4 5 6 7 8 9 101112 13 3 4 5 6 14 15 16171819 2021222324 25 Black...
Page 390 Black Black Black 6 7 8 9 101112 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Gray Blue Gray 1 2 3 4 1 2 3 4 Gray Gray Gray Black Black Black Black 3 4 5 6...
Page 391 K CONNECTOR LIST Gray Gray Dark Gray 10 11 14 15 16 1 2 3 4 5 6 7 8 21 22 24 25 9 101112131415 11 12 13 15 16 17 10 11 14 15 16 12 13 14 21 22 24 25 20 21...
Page 392 *3 : w/ Rear Spoiler *4 : w/o Rear Spoiler Black Black Black Dark Gray Dark Gray Black Black Black Gray Black Gray 1 2 3 4 5 3 4 5 6 Black Black Black (*3) Gray (*4) Brown 1 2 3 Black Black Black...
Page 393 K CONNECTOR LIST *5 : w/ Rear Seat Entertainment System *6 : w/o Rear Seat Entertainment System Black (*5) (*6) 1 2 3 4 5 Blue Blue Black A A A A A A A A A A A A B B B B B B B B B B B B Blue...
Page 394 Blue Blue Black Black A A B B C C A A B B C C D D D E E E D D D E E E Blue Blue A A A A A A A A A B A B B A A B B B B C C A A B D D D C C...
Page 395 K CONNECTOR LIST A B B A A B D D D C C Gray Black (1GR–FE) Black (2UZ–FE) Gray A A A A A A B B B B B Blue Black Black 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 Black (1GR–FE) Black...
Page 396 Gray Gray Gray 5 6 7 8 9 10 2 1 3 Black Gray Black Gray 1 2 3 4 5 1 2 3 4 5 1 2 3 1 2 3 7 8 9 101112 7 8 9 101112 Gray Black Gray...
Page 397 K CONNECTOR LIST Black Black Black Black Black 5 6 7 8 9 10 5 6 7 8 9 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Gray 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Blue 5 6 7 8 9...
Page 398 Black Blue 1 2 3 1 2 3 4 1 2 3 4 5 6 7 8 9 10 4 5 6 14 15 16 17 18 19 20 (1GR–FE) (2UZ–FE) Black Black 1 2 3 4 5 6 1 2 3 4 5 6 Blue 1 2 3 1011...
Page 399 K CONNECTOR LIST Yellow Yellow Black 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3 4 5 6 17 18 19 20 21 22 23 24 25 26 27 28 29 30 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Black Gray Gray...
Page 400 Black 4 5 6 7 8 9 1 2 3 1011 1213 Blue (1GR–FE) Brown (2UZ–FE) Black (1GR–FE) Gray (2UZ–FE) Black 1 2 3 4 5 (1GR–FE) Black (2UZ–FE) Dark Gray (1GR–FE) Black (2UZ–FE) Dark Gray Black 1 2 3 1 2 3 4 5 6 7 8 Black...
Page 401 K CONNECTOR LIST Gray Gray Gray Gray Gray 1 2 3 1 2 3 4 4 5 6 5 6 7 8 Dark Gray 1 2 3 4 5 6 18 17 4 5 6 7 8 9 10 11 12 13 Yellow 10 11 7 8 9...
Page 402 Gray Blue 18 17 Gray Gray 1 2 3 4 5 6 7 8 20 21 22 23 24 25 26 27 38 39 40 41 42 43 1 2 3 6 7 8 9 10 11 12 13 4RUNNER (EM03M0U)
Page 403 K CONNECTOR LIST 5 6 7 8 17 18 19 20 Gray Gray 1 2 3 4 5 6 7 8 20 21 22 23 24 25 26 27 38 39 40 41 42 43 Black 1 2 3 3 2 1 6 7 8 9 10 11 12 4 5 6 6 5 4...
Page 404 1 2 3 6 7 8 9 10 11 12 13 Blue 1 2 3 4 5 5 4 3 2 1 6 7 8 9 10 10 9 8 7 6 Yellow Gray Gray 20 21 22 23 24 25 26 27 38 39 40 41 42 43...
Page 405 K CONNECTOR LIST 1 2 3 4 5 6 7 8 9 9 8 7 6 5 4 3 2 1 18 17 10 11 12 13 14 15 16 17 18 18 17 16 15 14 13 12 11 10 4 5 6 7 8 3 4 5 6 9 10 11 12 13...
Page 406 3 4 5 6 7 8 9 10 11 12 Green Black 1 2 3 4 Gray Blue Gray 1 2 3 1 2 3 4 5 4 5 6 5 4 3 2 1 6 7 8 9 10 10 9 8 7 6 5 6 7 8 17 18 19 20...
Page 407 L PART NUMBER OF CONNECTORS Code Part Name Part Number Code Part Name Part Number A/C Ambient Temp. Sensor 90980–11070 Body ECU 90980–12562 A/C Lock Sensor Body ECU 90980–12560 90980–11016 90980–11016 A/C Magnetic Clutch Body ECU 90980–12561 ABS Speed Sensor Front LH Back Door Courtesy SW 90980–11003 90980–11003...
Page 408 Code Part Name Part Number Code Part Name Part Number Door Courtesy Light Front LH Glove Box Light 90980–11148 Door Courtesy Light Front RH Headlight LH (High) 90980–11095 90980–11148 90980–11148 90980–11148 Door Courtesy Light Rear LH Headlight LH (Low) 82824–60460 Door Courtesy Light Rear RH Headlight RH (High) 90980–11095...
Page 409 L PART NUMBER OF CONNECTORS Code Part Name Part Number Code Part Name Part Number Junction Connector 90980–10976 Junction Connector 90980–12355 Junction Connector 90980–11915 Junction Connector 90980–10871 Junction Connector 90980–11542 Junction Connector 90980–11542 Junction Connector Knock Sensor (Bank 1) 90980–11915 90980–11915 90980–11875 90980–11875...
Page 410 Code Part Name Part Number Code Part Name Part Number Pretensioner LH Seat Heater SW RH 90980–10933 90980–12253 90980–12253 Pretensioner RH Shift Lock Control ECU 90980–12552 90980–12552 Power Seat Control SW (Driver’s Seat) Transmission Control SW 90980–10997 90980–10997 Power Seat Control SW (Front Passenger’s Steering Sensor 90980–12553 Seat)
Page 411 L PART NUMBER OF CONNECTORS Code Part Name Part Number Code Part Name Part Number Telephone Microphone 90980–12366 Vehicle Speed Sensor (Electronically 90980–11156 Controlled Transmission) VSV (ACIS) (1GR–FE) 90980–11149 VSV (Air Switching Valve Bank 1) VSV (ACIS) (2UZ–FE) 90980–11156 90980–11149 90980–11149 VSV (Air Switching Valve Bank 2) VSV (Purge)
Page 412 Memo 4RUNNER (EM03M0U)
Page 413 L–Y L–Y B–Y Engine Control Module < 5–12> < 5–14> < 6–14> B–Y B–Y B–Y B–Y B–Y Combination Meter < 31–3> Junction Connector W–B W–B Y–G(2UZ–FE) Y–G Y (1GR–FE) (2UZ–FE) (1GR–FE) 4RUNNER (EM03M0U)
Page 414 M OVERALL ELECTRICAL WIRING DIAGRAM W–B W–B Ignition Coil and Igniter No. 8 W–B R–W B–R G–B Ignition Coil and Igniter No. 7 W–B R–Y B–R G–W Ignition Coil and Igniter No. 6 W–B R–Y B–R Ignition Coil and Igniter No. 5 W–B R–W B–R...
Page 415 W–B W–R B–R Ignition Coil and Igniter No. 6 W–B W–R B–R Ignition Coil and Igniter No. 5 W–B W–R B–R LG–B Ignition Coil and Igniter No. 4 W–B W–R B–R Ignition Coil and Igniter No. 3 W–B W–R B–R P–L Ignition Coil and Igniter No.
Page 416 M OVERALL ELECTRICAL WIRING DIAGRAM 15A IG1 Y–R Y–R Y–R Y–R Charge 7. 5A GAUGE R–L 7. 5A ALT–S 30A AM2 50A AM1 140A ALT W–L 4RUNNER (EM03M0U)
Page 417 Memo 4RUNNER (EM03M0U)
Page 418 M OVERALL ELECTRICAL WIRING DIAGRAM B–O GR–B B–W C/OPN Relay Junction 10A EFI NO. 2 Connector L–W L–W L–W L–W B–R W–B J 2 ( A ) , J 3 ( B ) Junction Connector A/F HEATER Relay W–G W–B W–B EFI Relay W–G...
Page 419 GR–B W–G G–R P–L J35 ( A ) , J36 ( B ) Junction Connector R–Y J29 ( A ) , J30 ( B ) Junction Occupant Connector R–Y Classification ECU< 20–10> R–Y P–L R–Y Airbag Sensor Airbag P–L Assembly< 20–6> Sensor J18 ( A ) , J19 ( B ) Assembly...
Page 420 M OVERALL ELECTRICAL WIRING DIAGRAM V 2 ( B ) VSV (Purge) Y–R L–W V 1 ( B ) VSV (ACIS) L–W Engine Coolant Temp. Sensor R–L (Shielded) Throttle Control Motor Injector No. 8 Throttle Position Sensor B–R Injector No. 7 B–R Injector No.
Page 421 V–W V–W C 4 ( B ) Crankshaft Position Sensor LG–B LG–B W–B (Shielded) W–L W–L Junction Connector W–B B–Y B–Y W–B W–B R–B R–B W–B Heated Oxygen Sensor (Bank 1 Sensor 2) W–R W–R G–Y L–W (Shielded) J31 ( A ) , J32 ( B ) Junction Connector Y–G...
Page 422 M OVERALL ELECTRICAL WIRING DIAGRAM Junction Connector W–B LG–R Security Indicator Light V–W W–B W–B P–G Door Courtesy SW R–B Front LH GR–B < 7–31> G–Y Unlock Warning SW < 7–19> W–R W–R W–R W–B R–Y B–O J33 ( A ) , J34 ( B ) Junction Connector W–B...
Page 423 Memo 4RUNNER (EM03M0U)
Page 424 M OVERALL ELECTRICAL WIRING DIAGRAM C/OPN Relay B–O GR–B B–W L–W 10A EFI NO. 2 L–W L–W Junction Connector A/F HEATER Relay B–R J 2 ( A ) , J 3 ( B ) Junction Connector W–B EFI Relay W–G W–B W–B W–G...
Page 425 G–W Power Steering Oil Pressure SW GR–B W–G W–G Y–B P–L E 4 ( A ) , E 5 ( B ) , E 6 ( C ) , E 7 ( D ) , E 8 ( E ) Engine Control Module R–Y Occupant Classification...
Page 426 M OVERALL ELECTRICAL WIRING DIAGRAM M 1 ( A ) Mass Air Flow Meter J31 ( A ) , J32 ( B ) Junction Connector R–B Y–G Y–G R–W L–R R–Y L–W Camshaft Timing Oil Control Valve LH L–W Engine Coolant Temp. Sensor B–L L–B (Shielded)
Page 427 V–W V–W C 4 ( A ) Crankshaft Position Sensor LG–B LG–B (Shielded) W–L W–L V 3 ( A ) VVT Sensor (Bank 2) B–Y B–Y R–B R–B L–R W–R W–R V 4 ( A ) VVT Sensor (Bank 1) BR–W L–R A/C Control...
Page 428 M OVERALL ELECTRICAL WIRING DIAGRAM W–B V–W W–B W–B LG–R P–G Door Courtesy SW R–B Front LH < 7–31> GR–B G–Y Unlock Warning SW < 7–19> W–R W–R W–R W–B R–Y B–O J33 ( A ) , J34 ( B ) Junction Connector W–B...
Page 429 Memo 4RUNNER (EM03M0U)
Page 430 M OVERALL ELECTRICAL WIRING DIAGRAM G–W G–W L–Y L–Y W–R W–R W–R G–W W–G HEAD Relay R–B R–B 20A DR/LCK G–W 15A TRN–HAZ B–Y (∗1) R–L 10A DOME 7. 5A GAUGE 10A ECU–B W–R Short Pin 30A AM2 50A J/B L–W 15A FR FOG 50A AM1...
Page 431 L–R L–R Door Courtesy Light Rear RH Door Courtesy Light Front RH B–Y Y–R (∗2) B–L R–G Vanity Light RH Vanity Light LH (w/ Vanity Light) (w/ Vanity Light) Personal Light W–B Luggage Compartment Light (∗3) (∗3) DOOR W(∗3) I20 ( A ) , ( B ) Interior Light DOOR W(∗3)
Page 432 M OVERALL ELECTRICAL WIRING DIAGRAM 10A HEAD(HI RH) R–W R–W Headlight LH 10A HEAD(HI LH) (High) R–B R–L R–G R–L 10A HEAD(LO RH) R–B W–B W–B W–B Headlight RH (Low) 10A HEAD(LO LH) R–B R–Y W–B Y–R Headlight LH (Low) Daytime Running Light Relay Turn Signal...
Page 433 Engine Hood Courtesy SW P–G P–G W–B W–L GR–G G–R G–R (Except Limited) GR–G W–B W–B W–B Y–R G–R Front Fog Light RH W–B Front Fog Light LH W–B W–B W–B Junction Connector W–B W–B W–B W–B R–L W–B W–B W–B W–B J15 ( B )
Page 434 M OVERALL ELECTRICAL WIRING DIAGRAM L–B Power Window Motor Front RH G–Y W–B W–B Unlock Warning SW W–R (∗5) B–R (∗5) J14 ( A ) , J15 ( B ) Junction Connector G–Y G–Y G–Y BR–Y G–Y BR–Y W–R W–R B–R B–R B–R...
Page 435 R–W W–B G–W L–O W–B W–B W–B W–B BR–B W–G W–R W–L L–B Power Window Motor Rear LH L–B G–R G–R G–W G–W Power Window Motor Rear RH L–B R–L G–B G–B L–O B–R R–B L–Y L–R J22 ( A ) , J23 ( B ) Junction Connector L–R L–R...
Page 436 M OVERALL ELECTRICAL WIRING DIAGRAM L–R L–R L–B L–B W–B W–B L–R L–R L–B L–B W–B W–B L–R B–W L–B B–R B–W W–B W–B B–W B–W L–B B–R W–R W–B W–B W–B W–B W–B L–W Lock Unlock L–O L–O L–W L–W L–O L–W...
Page 437 W–L V–Y Door Courtesy SW Rear RH P–L P–L Door Courtesy SW Rear LH P–B P–B Door Courtesy SW Front RH R–Y J18 ( A ) , J19 ( B ) Junction Connector Door Courtesy SW Front LH R–B R–B R–B Transponder Key Computer <...
Page 438 M OVERALL ELECTRICAL WIRING DIAGRAM 10A MIR HEATER B–L B–L J22 ( A ) , J23 ( B ) Junction 30A DEFOG Connector Y–G Y–G Y–G Engine Control Module< 6–12> (1GR–FE) Y–G R21 ( A ) , R22 ( B ) Rear Window Defogger Y–G W–B...
Page 439 L–O Junction Connector L–R W–R W–R W–B Junction Connector B–R B–R BR–R Turn Signal Flasher Relay< 8–3> < 9–3> STOP LP CTRL Relay < 11–3> Combination Meter < 31–5> Generator < 4–3> Park/Neutral G–B Position SW < 13–12> < 14–9> R–Y Data Link Connector 3 <...
Page 440 M OVERALL ELECTRICAL WIRING DIAGRAM B–R L–R L–B BR–W G–Y R–G R–G Y–G BR–B P–B G–R L–W B–O W–R Y–G R–B Y–B Back Door Opener SW LG–R V–W V–Y GR–R LG–B 4RUNNER (EM03M0U)
Page 441 Memo 4RUNNER (EM03M0U)
Page 442 M OVERALL ELECTRICAL WIRING DIAGRAM (2UZ–FE) L–B (1GR–FE) Turn LH L–Y Turn RH W–B W–B Rear Combination Junction Light RH Connector L–Y L–Y L–Y W–B Turn Rear Combination Light LH L–B L–B L–B W–B Turn L–B W–B Towing Converter Relay< 27–4> L–Y Hazard SW W–B...
Page 443 (2UZ–FE) L–B (1GR–FE) Turn LH L–Y Turn RH W–B W–B Rear Combination Junction Light RH Connector L–Y L–Y L–Y L–Y W–B Turn Rear Combination Light LH L–B L–B L–B L–B W–B Turn L–B W–B Towing Converter Relay< 27–4> L–Y Hazard SW W–B W–B Combination SW...
Page 444 M OVERALL ELECTRICAL WIRING DIAGRAM J16 ( A ) , J17 ( B ) J16 ( A ) , J17 ( B ) Junction Junction Roll Sensing of Curtain Connector Connector Shield Airbag Cutoff SW W–G Auto LSD SW W–G Main SW W–G Diff.
Page 445 4WD Control SW W–G Cigarette Lighter Illumination W–B W–G Ashtray Illumination W–B W–G A/T Shift Lever Illumination W–G Back Door Power Window Control SW W–G Hazard SW W–G Seat Heater SW RH W–G Seat Heater SW LH W–G Cup Holder Illumination W–G Downhill Assist Control SW W–G...
Page 446 M OVERALL ELECTRICAL WIRING DIAGRAM (1GR–FE) J 8 ( A ) , J 9 ( B ) Junction Junction Connector Connector (2UZ–FE) B–R R–L W–G W–G W–G J 8 ( A ) , J 9 ( B ) Junction Connector Tail (∗7) Illumination Illumination...
Page 447 H18 ( A ) High Mounted Stop Light W–B J40 ( A ) , J41 ( B ) H18 ( B ) Junction High Mounted Connector Stop Light G–Y G–Y W–B W–B (∗2) (∗2) Rear Combination Light RH G–Y G–Y W–B Stop/Tail Taillight System...
Page 448 M OVERALL ELECTRICAL WIRING DIAGRAM R–Y Trailer Socket < 27–4> Back–Up R–Y W–B W–B Rear Combination Light RH Back–Up R–Y R–Y R–Y W–B Rear Combination Light LH W–B Park/Neutral Position SW R–Y Y–R Y–R Y–R Y–R Battery W–L 4RUNNER (EM03M0U)
Page 449 Memo 4RUNNER (EM03M0U)
Page 450 M OVERALL ELECTRICAL WIRING DIAGRAM R–L Vehicle Speed Sensor (Electronically Controlled Transmission) L–Y Y–G W–R B–R B–W Y–R B–Y J31 ( A ) , J32 ( B ) Junction G–B Connector B–O R–W R–B L–R B–O LG–B P–L W–L J31 ( A ) , J32 ( B ) Junction Connector W–G...
Page 451 B–L B–L P–L Transmission Control SW J 8 ( A ) , J 9 ( B ) Junction Connector B–L B–L J10 ( A ) , J11 ( B ) Junction Connector R–L J35 ( A ) , J36 ( B ) Junction Connector B–L...
Page 452 M OVERALL ELECTRICAL WIRING DIAGRAM G–B Position Control ECU and SW <33–2> (∗2) G–B Skid Control ECU with Actuator<15–3> G–B Body ECU < 7–39> J 8 ( A ) , J 9 ( B ) Junction Connector G–B J35 ( A ) Junction Connector G–B G–B...
Page 453 Memo 4RUNNER (EM03M0U)
Page 454 M OVERALL ELECTRICAL WIRING DIAGRAM W–B W–B W–B W–B Y–G B–R B–W B–Y G–B J 8 ( A ) Junction Connector R–W R–B J31 ( A ) , J32 ( B ) Junction Connector B–O L–R L–Y LG–B Vehicle Speed Sensor (Electronically Controlled Transmission) P–L...
Page 455 G–B J33 ( A ) , J34 ( B ) Junction Connector R–Y Radio and Player with Display< 28–9> (∗1) R–Y R–Y R–Y J10 ( A ) , J11 ( B ) Junction Connector G–W J29 ( A ) , J30 ( B ) Junction Connector G–W G–W...
Page 456 M OVERALL ELECTRICAL WIRING DIAGRAM J 8 ( A ) , J 9 ( B ) Junction Junction Connector Connector R–L A/T OIL TEMP B–L P–L G–W R–Y G–B Position Control G–B ECU and SW (∗2) < 33–2> Skid Control ECU G–B with Actuator <...
Page 457 Memo 4RUNNER (EM03M0U)
Page 458 M OVERALL ELECTRICAL WIRING DIAGRAM G–R G–R 4WD Control ECU< 19–6> (4WD) (4WD) Junction W–L W–L Connector 4WD Control ECU< 19–2> (4WD) (4WD) W–B Transfer R–L R–L R–L Shift Actuator (4WD) (4WD) (4WD) < 19–4> Downhill Assist Junction Control SW Connector W–G W–G...
Page 459 10A ECU–B J 8 ( A ) , J 9 ( B ) Junction Junction 10A DOME Connector Connector (2UZ–FE) (1GR–FE) Speedometer R–L GR–R B–L BRAKE LG–R Slip L–W (∗5) L–W (2UZ–FE) VSC OFF (4WD) AUTO LSD (2WD) L–W (∗2) Y–R VSC TRAC BR–Y...
Page 460 M OVERALL ELECTRICAL WIRING DIAGRAM J47 ( A ) , J48 ( B ) , J49 ( C ) , J50 ( D ) , J51 ( E ) , J52 ( F ) Junction Connector W–B B–R W–B J12 ( A ) , J13 ( B ) Yaw Rate Sensor Junction Connector...
Page 461 Memo 4RUNNER (EM03M0U)
Page 462 M OVERALL ELECTRICAL WIRING DIAGRAM C 8 ( A ) , C10 ( C ) Combination Meter CRUISE R–L J31 ( A ) , J32 ( B ) Junction Connector B–O B–O Junction Connector B–O L–B L–B ON–OFF Stop Light Stop Light SW System<...
Page 463 W–B W–B W–B W–B W–B W–B W–B W–B W–B W–B W–B W–B 4RUNNER (EM03M0U)
Page 464 M OVERALL ELECTRICAL WIRING DIAGRAM C 8 ( A ) , C10 ( C ) Combination Meter CRUISE R–L J31 ( A ) , J32 ( B ) Junction Connector B–O B–O Junction Connector Junction Connector B–O L–B L–B ON–OFF Stop Light Stop Light SW System<...
Page 465 J33 ( A ) , J34 ( B ) Junction Connector W–B W–B W–B W–B W–B W–B 4RUNNER (EM03M0U)
Page 466 M OVERALL ELECTRICAL WIRING DIAGRAM Height Control Mode Select SW W–B HEIGHT CONTROL Height Control SW G–R G–R L–W L–W W–B R–W R–W Height Control Compressor GR–G GR–G W–B BR–W BR–W Height Control Valve W–B W–B V–W V–W R–Y Data Link R–B Connector 3 Low Pressure Tank Valve...
Page 467 J 8 ( A ) , J 9 ( B ) Junction Connector Height Control Y–G R–L Y–B BR–B BR–B BR–B Y–B Y–B R–G R–G Body ECU < 7–29> L–R Y–G Y–G Skid Control ECU with Actuator < 15–5> L–O J 2 ( A ) , J 3 ( B ) Junction Connector...
Page 468 M OVERALL ELECTRICAL WIRING DIAGRAM W–B W–B W–B BR–W W–B W–B (∗1) (∗1) W–G(∗1) J31 ( A ) , J32 ( B ) P–L P–L Junction (∗1) (∗1) Connector G–R (∗1) (∗1) Skid Control ECU R–L with Actuator < 15–4> B–W B–W (∗1)
Page 469 B–R R–L Skid Control ECU with Actuator < 15–4> Center Diff. Lock J10 ( A ) , J11 ( B ) Junction Connector G–R G–R W–G (∗1) BR–W 4RUNNER (EM03M0U)
Page 470 M OVERALL ELECTRICAL WIRING DIAGRAM Y–O (∗1) BR–W BR–W Y–V (∗1) B–W B–W Y–O (∗1) Y–V (∗1) W–R W–R GR–R (∗1) L–B Y–P Y–P (∗1) LG–B Y–GR Y–GR (∗1) L–W Y–G Y–G (∗1) Y–R Y–R (∗1) Y–O (∗1) LG–B Y–V (∗1) L–Y Y–B...
Page 471 Y–R Y–R G–R Y–R G–Y L–W G–W Seat Position Airbag Sensor R–B Y–B L–R Combination Meter < 7–34> P–L Y–B Data Link Connector 3 J14 ( A ) , J15 ( B ) < 5–7> < 6–7> R–Y Junction Connector W–B (∗1) Engine Control Module...
Page 472 M OVERALL ELECTRICAL WIRING DIAGRAM W–B W–B Data Link R–Y R–Y Connector 3 < 5–8> < 6–8> W–R W–R W–R J31 ( A ) , J32 ( B ) Junction Junction Connector Connector B–O B–O B–O 4RUNNER (EM03M0U)
Page 473 Junction Connector W–B W–B L–Y L–Y Front Wiper and Washer SW W–B W–L 4RUNNER (EM03M0U)
Page 474 M OVERALL ELECTRICAL WIRING DIAGRAM W–B W–B Rear Power Seat Motor (Front Passenger' s Seat Reclining Control) Front Rear Power Seat Motor (Front Passenger' s Seat Slide Control) G–R Front Lumbar Support Control SW (Driver' s Seat) Hold Lumbar Support Control Motor (Driver' s Seat) Release...
Page 475 W–B W–B W–B W–B Seat Heater SW RH Seat Heater RH W–B W–B Y–R W–B W–B W–B (∗1) (∗1) (∗1) (∗1) (∗1) Seat Heater SW LH Seat Heater LH J43 ( A ) , J44 ( B ) J43 ( A ) , J44 ( B ) Junction Connector Junction Connector W–B...
Page 476 M OVERALL ELECTRICAL WIRING DIAGRAM Operation SW Select SW W–B W–B W–B Right L–W /Down Y–B L–R Y–B L–R Left G–R LG–R G–R L–Y L–Y LG–B L–Y Down P–B Y–B P–B G–R Right P–G P–G Left 7. 5A ACC ACC CUT Relay W–G Engine Control System<...
Page 477 W–B J40 ( A ) , J41 ( B ) Junction Connector W–B Power Outlet (Rear) L–W BR–R BR–R W–B Power Outlet (Front) BR–R W–B W–B Cigarette Lighter P–L P–L W–B W–B W–B W–B W–B W–B Power Outlet (115V) R–W R–W R–W V–R...
Page 478 M OVERALL ELECTRICAL WIRING DIAGRAM J43 ( A ) , J44 ( B ) J43 ( A ) , J44 ( B ) Junction Junction Connector Connector Y–R Y–R Y–R W–B W–B (∗2) (∗2) (∗2) (∗2) Buckle SW LH Tension Reducer (∗1) (∗1) W–B...
Page 479 W–B G–Y STOP LP CTRL Relay < 11–3> W–B W–B L–Y J40 ( A ) , J41 ( B ) Turn Signal Flasher Junction Relay< 8–3> < 9–3> Connector L–B L–R W–B L–O R–Y Park/Neutral Position SW < 12–3> Trailer Socket G–B G–B Body ECU...
Page 480 M OVERALL ELECTRICAL WIRING DIAGRAM (∗1) (∗1) (∗1) (∗3) (∗1) (∗1) (∗1) (∗1) (∗1) (∗3) (∗3) (∗1) (∗3) (∗3) (∗3) (∗3) (∗3) L–Y (∗2) L–Y L–Y L–Y (∗2) Engine Control ACC CUT Relay System< 5–3> < 6–3> W–G 20A RADIO NO. 1 Short Pin L–Y 20A RADIO NO.
Page 481 Y–B Y–B (∗2) (∗2) (∗2) W–R W–R (∗1) (∗1) (∗1) V–W V–W (∗2) (∗2) (∗2) (∗2) (∗2) (∗2) (∗2) (∗2) (∗2) (∗1) (∗1) (∗1) (∗2) (∗2) (∗2) (∗2) (∗2) (∗2) (∗2) (∗2) (∗2) (∗1) (∗1) (∗1) (∗2) (∗2) (∗2) (∗2) (∗2) (∗2) (∗2)
Page 482 M OVERALL ELECTRICAL WIRING DIAGRAM V–R Combination Meter < 31–5> G–B G–B G–W L–R L–B Door Speaker Front LH No. 2 R–L W–R Door Speaker W–L Front RH No. 2 (∗1) W–L W–L W–L W–L (∗1) (∗1) R–Y Park/Neutral Position SW <...
Page 483 Memo 4RUNNER (EM03M0U)
Page 484 M OVERALL ELECTRICAL WIRING DIAGRAM (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (Shielded) (Shielded) (Shielded) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) L–Y (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) L–Y L–Y (∗1) (∗1)
Page 485 (Shielded) W–R (Shielded) W–R Y–B Y–B W–R W–R V–W V–W (∗1) (∗1) (∗1) (Shielded) (Shielded) (Shielded) (Shielded) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (Shielded) (Shielded) (Shielded) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) 4RUNNER (EM03M0U)
Page 486 M OVERALL ELECTRICAL WIRING DIAGRAM V–R Combination Meter < 31–5> L–R G–W G–W L–B G–W G–W G–W G–W G–B G–B Door Speaker Front RH No. 2 Junction Connector Door Speaker W–L W–L W–L Front LH No. 2 W–L R–L 4RUNNER (EM03M0U)
Page 487 Memo 4RUNNER (EM03M0U)
Page 488 M OVERALL ELECTRICAL WIRING DIAGRAM (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (Shielded) (Shielded) (Shielded) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) L–Y L–Y Door Speaker (∗1) (∗1) (∗1) Front RH No. 2 (∗1) (∗1) (∗1)
Page 489 L–Y B–R B–R B–R W–B G–Y B–R B–R Stop Light SW < 11–1> W–B W–B Junction Connector L–W L–W W–B W–B Key Interlock Solenoid (∗1) (∗1) (∗1) (∗1) (∗1) (∗1) (Shielded) (Shielded) (Shielded) (∗1) (∗1) (∗1) Y–B Y–B (∗1) (∗1) (∗1) W–R W–R...
Page 490 M OVERALL ELECTRICAL WIRING DIAGRAM J 8 ( A ) , J 9 ( B ) J 8 ( A ) , J 9 ( B ) Junction Junction Connector Connector B–W A/C Control Assembly< 32–11> Engine Control B–O B–W B–W Module <...
Page 491 VSC OFF (4WD) AUTO LSD (2WD) ABS System< 15–7> TRAC System< 15–7> VSC System< 15–7> Auto LSD System< 15–7> VSC TRAC Downhill Assist Control System < 15–7> Hill–Start Assist Control System < 15–7> Slip Electronically Controlled Transmission and A/T Indicator System A/T OIL TEMP <...
Page 492 M OVERALL ELECTRICAL WIRING DIAGRAM C 8 ( A ) , C 9 ( B ) , C10 ( C ) , C11 ( D ) Combination Meter Cruise Control System< 16–4> < 17–4> CRUISE RSCA OFF SRS System < 20–5> Tire Pressure Warning System <...
Page 493 Memo 4RUNNER (EM03M0U)
Page 494 M OVERALL ELECTRICAL WIRING DIAGRAM W–B 7. 5A ACC W–B W–B Junction Connector ACC CUT Relay Engine Control System< 5–3> < 6–3> L–B L–B L–B BR–Y BR–Y Y–R Junction Connector Y–R Y–R Y–R Y–R 15A IG1 Y–R Blower Motor B–Y B–Y W–L G–Y...
Page 495 Air Inlet Control Servo Motor P–G P–L P–B Y–G A/C Ambient Temp. Sensor Y–G Y–G V–W V–R L–O Y–G A27 ( A ) Air Mix Control Servo Motor LH A26 ( B ) Air Mix Control Servo Motor Y–G Y–G Y–G A/C Room Temp.
Page 496 M OVERALL ELECTRICAL WIRING DIAGRAM W–L Combination Meter< 31–3> < 31–4> BR–B GR–G GR–G BR–W BR–W J31 ( A ) , J32 ( B ) Junction Connector L–B L–B J10 ( A ) , J11 ( B ) Junction Connector L–B L–B L–B...
Page 497 W–B W–B R–L Hold W–B Release W–B W–B W–B W–B W–B W–B W–B Power Seat Motor (Driver' s Seat Lifter Control) Power Seat Motor (Driver' s Seat R–B R–B Reclining Control) Door Courtesy SW Front LH< 7–31> Park/Neutral G–B G–B Position SW <...
Page 498 M OVERALL ELECTRICAL WIRING DIAGRAM (Shielded) Fuel Pump Injector No.4 Injector No.2 Injector No.3 Injector No.1 Emission ECU <9-8> (22R-E) (22R-E) (2L-T) (2L-T) (2L-T) 30A AM2 40A AM1 100A ALT 4RUNNER (EM03M0U)
Page 499 4RUNNER (EM03M0U)
Page 500 M OVERALL ELECTRICAL WIRING DIAGRAM 4RUNNER (EM03M0U)

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