CAN COMMUNICATION SYSTEM (for LHD with Entry and Start System) TERMINALS OF ECU

Tech Tips

Operating the engine switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.


  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL


    1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system Click here.

      Note


      • Before measuring the resistance, leave the vehicle for at least 1 minute and do not operate the engine switch, any switches or any doors. If doors need to be opened in order to check connectors, open the doors and leave them open.

      • After turning the engine switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work Click here.

      • When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.

  2. JUNCTION CONNECTOR


    1. NO. 1 JUNCTION CONNECTOR


      1. G97 No. 1 junction connector

        A00KVHXE24
        Text in Illustration
        *a for No. 2 Junction Connector *b for Four Wheel Drive Control ECU
        *c for Certification ECU *d for Power Management Control ECU (V1 Bus)
        *e for Power Steering ECU Assembly *f for ECM (V1 Bus)
        No. 1 Junction Connector Wiring Color Connect to
        G97-1 (CANH) GR No. 2 junction connector
        G97-12 (CANL) W
        G97-2 (CANH) G Four wheel drive control ECU
        G97-13 (CANL) W
        G97-3 (CANH) P Certification ECU
        G97-14 (CANL) W
        G97-4 (CANH) BR Power management control ECU (V1 bus)
        G97-15 (CANL) W
        G97-5 (CANH) L Power steering ECU assembly
        G97-16 (CANL) W
        G97-6 (CANH) R ECM (V1 bus)
        G97-17 (CANL) W

      2. G98 No. 1 junction connector

        A00KT2OE01
        Text in Illustration
        *a for No. 3 Junction Connector *b for Power Management Control ECU (V2 Bus)
        *c for Parking Assist ECU (w/ Parking Assist Monitor System and/or Side Monitor System) or Clearance Warning ECU Assembly (w/ TOYOTA Parking Assist-sensor System [for 8 Sensor Type]) *d for Driving Support ECU Assembly (w/ Dynamic Radar Cruise Control System)
        *e for ECM (Power Management Bus) *f for Air Conditioning Amplifier Assembly
        *g for Power Management Control ECU [Power Management Bus]) - -
        No. 1 Junction Connector Wiring Color Connect to
        G98-1 (CANH) P No. 3 junction connector
        G98-12 (CANL) W
        G98-2 (CANH) V Power management control ECU (V2 bus)
        G98-13 (CANL) W
        G98-3 (CANH) B Parking assist ECU*1 or clearance warning ECU assembly*2
        G98-14 (CANL) W
        G98-4 (CANH) G Driving support ECU assembly*3
        G98-15 (CANL) W
        G98-9 (CANH) BR ECM (power management bus)
        G98-20 (CANL) GR
        G98-10 (CANH) BR Air conditioning amplifier assembly
        G98-21 (CANL) Y
        G98-11 (CANH) BR Power management control ECU (power management bus)
        G98-22 (CANL) W

        • *1: w/ Parking Assist Monitor System and/or Side Monitor System

        • *2: w/ TOYOTA Parking Assist-sensor System (for 8 Sensor Type)

        • *3: w/ Dynamic Radar Cruise Control System

    2. NO. 2 JUNCTION CONNECTOR

      A00KVHXE04
      Text in Illustration
      *a for No. 1 Junction Connector *b for Display and Navigation Module Display (AVN) [w/ Navigation System]
      *c for Spiral Cable Sub-assembly (Steering Angle Sensor) *d for Yaw Rate Sensor Assembly
      *e for Center Airbag Sensor Assembly *f for No. 3 Junction Connector
      No. 2 Junction Connector Wiring Color Connect to
      G100-1 (CANH) GR No. 1 junction connector
      G100-12 (CANL) W
      G100-2 (CANH) P Display and navigation module display (AVN)*
      G100-13 (CANL) W
      G100-3 (CANH) G Spiral cable sub-assembly (steering angle sensor)
      G100-14 (CANL) W
      G100-4 (CANH) R Yaw rate sensor assembly
      G100-15 (CANL) W
      G100-5 (CANH) Y Center airbag sensor assembly
      G100-16 (CANL) W
      G100-6 (CANH) LG No. 3 junction connector
      G100-17 (CANL) W

      • *: w/ Navigation System

    3. NO. 3 JUNCTION CONNECTOR


      1. G94 No. 3 junction connector

        A00KT2OE03
        Text in Illustration
        *a for No. 2 Junction Connector *b for Main Body ECU (Multiplex Network Body ECU) [V1 Bus]
        *c for DLC3 *d for No. 4 Junction Connector
        No. 3 Junction Connector Wiring Color Connect to
        G94-1 (CANH) LG No. 2 junction connector
        G94-12 (CANL) W
        G94-3 (CANH) L Main body ECU (multiplex network body ECU) [V1 bus]
        G94-14 (CANL) W
        G94-5 (CANH) R DLC3
        G94-16 (CANL) W
        G94-6 (CANH) B No. 4 junction connector
        G94-17 (CANL) W

      2. G95 No. 3 junction connector

        A00KT2OE04
        Text in Illustration
        *a for No. 1 Junction Connector *b for No. 4 Junction Connector
        *c for Stabilizer Control ECU (w/ Kinetic Dynamic Suspension System) *d for Seat Belt Control ECU (w/ Pre-crash Safety System)
        No. 3 Junction Connector Wiring Color Connect to
        G95-1 (CANH) P No. 1 junction connector
        G95-12 (CANL) W
        G95-3 (CANH) B No. 4 junction connector
        G95-14 (CANL) W
        G95-5 (CANH) V Stabilizer control ECU*1
        G95-16 (CANL) W
        G95-6 (CANH) L Seat belt control ECU*2
        G95-17 (CANL) W

        • *1: w/ Kinetic Dynamic Suspension System

        • *2: w/ Pre-crash Safety System

      3. G96 No. 3 junction connector

        A00KT2OE45
        Text in Illustration
        *a for Front Power Seat Switch LH (w/ Seat Position Memory) *b for Multiplex Tilt and Telescopic ECU (for Power Tilt and Power Telescopic Steering Column)
        *c for Main Body ECU (Multiplex Network Body ECU) [MS Bus] *d for Driving Support Switch Control ECU (w/ Multi-function Switch)
        *e for No. 6 Junction Connector - -
        No. 3 Junction Connector Wiring Color Connect to
        G96-2 (CANH) L Front power seat switch LH*2
        G96-13 (CANL) W
        G96-3 (CANH) GR Multiplex tilt and telescopic ECU*1
        G96-14 (CANL) W
        G96-4 (CANH) P Main body ECU (multiplex network body ECU) [MS bus]
        G96-15 (CANL) W
        G96-5 (CANH) R Driving support switch control ECU*3
        G96-16 (CANL) W
        G96-6 (CANH) LG No. 6 junction connector
        G96-17 (CANL) W

        • *1: for Power Tilt and Power Telescopic Steering Column

        • *2: w/ Seat Position Memory

        • *3 w/ Multi-function Switch

    4. NO. 4 JUNCTION CONNECTOR

      A00KVHXE08
      Text in Illustration
      *a for No. 5 Junction Connector *b for No. 3 Junction Connector (V2 Bus)
      *c for Suspension Control ECU (w/ Air Suspension System) *d for Headlight Swivel ECU Assembly (AFS ECU) [w/ Adaptive Front-lighting System]
      *e for No. 3 Junction Connector (V1 Bus) *f for Combination Meter Assembly
      *g for Master Cylinder Solenoid (Skid Control ECU) - -
      No. 4 Junction Connector Wiring Color Connect to
      A73-1 (CANH) LG No. 5 junction connector
      A73-12 (CANL) W
      A73-2 (CANH) B No. 3 junction connector [V2 Bus]
      A73-13 (CANL) W
      A73-3 (CANH) GR Suspension control ECU*1
      A73-14 (CANL) W
      A73-4 (CANH) V Headlight swivel ECU assembly (AFS ECU)*2
      A73-15 (CANL) W
      A73-9 (CANH) B No. 3 junction connector [V1 Bus]
      A73-20 (CANL) W
      A73-10 (CANH) LG Combination meter assembly
      A73-21 (CANL) W
      A73-11 (CANH) B Master cylinder solenoid (skid control ECU)
      A73-22 (CANL) W

      • *1: w/ Air Suspension System

      • *2: w/ Adaptive Front-lighting System

    5. A00KT0GE13
      Text in Illustration
      *a for No. 4 Junction Connector

      NO. 5 JUNCTION CONNECTOR

      No. 5 Junction Connector Wiring Color Connect to
      G102-2 (CANL) W No. 4 junction connector
      G102-3 (CANH) LG
    6. A00KT0GE14
      Text in Illustration
      *a for No. 3 Junction Connector

      NO. 6 JUNCTION CONNECTOR

      No. 6 Junction Connector Wiring Color Connect to
      G103-2 (CANN) W No. 3 unction connector
      G103-3 (CANP) LG

  3. CHECK DLC3


    1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

      Note


      • After turning the engine switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work Click here.

      • When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.

    2. A00KUEFE67

      Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G48-6 (CANH) - G48-14 (CANL) R - W Engine switch off 54 to 69 Ω
      G48-6 (CANH) - G48-4 (CG) R - W-B Engine switch off 200 Ω or higher
      G48-14 (CANL) - G48-4 (CG) W - W-B Engine switch off 200 Ω or higher
      G48-6 (CANH) - G48-16 (BAT) R - GR Engine switch off 6 kΩ or higher
      G48-14 (CANL) - G48-16 (BAT) W - GR Engine switch off 6 kΩ or higher

  4. CHECK ECM

    A00KT1EE01
    Text in Illustration
    *A for V1 Bus *B for Power Management Bus
    *C for Powertrain Bus *D for 1GR-FE
    *E for 1KD-FTV - -

    1. Disconnect the G55*1, G56*1, G57*2, G58*2, C36*1, C92*2 and C93*2 ECM connectors.


      • *1: for 1GR-FE

      • *2: for 1KD-FTV

    2. Measure the resistance according to the value(s) in the table below.

      for V1 Bus (1GR-FE)
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G56-32 (CANH) - G56-31 (CANL) R - W Engine switch off 108 to 132 Ω
      G56-32 (CANH) - C36-12 (E1) R - BR Engine switch off 200 Ω or higher
      G56-31 (CANL) - C36-12 (E1) W - BR Engine switch off 200 Ω or higher
      G56-32 (CANH) - G55-24 (BATT) R - L Engine switch off 6 kΩ or higher
      G56-31 (CANL) - G55-24 (BATT) W - L Engine switch off 6 kΩ or higher
      for V1 Bus (1KD-FTV)
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G58-35 (CANH) - G58-36 (CANL) R - W Engine switch off 108 to 132 Ω
      G58-35 (CANH) - C93-1 (E1) R - BR Engine switch off 200 Ω or higher
      G58-36 (CANL) - C93-1 (E1) W - BR Engine switch off 200 Ω or higher
      G58-35 (CANH) - G57-23 (BATT) R - L Engine switch off 6 kΩ or higher
      G58-36 (CANL) - G57-23 (BATT) W - L Engine switch off 6 kΩ or higher
      for Power Management Bus (for 1GR-FE)
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G56-34 (CANP) - G56-33 (CANN) BR - GR Engine switch off 108 to 132 Ω
      G56-34 (CANP) - C36-12 (E1) BR - BR Engine switch off 200 Ω or higher
      G56-33 (CANN) - C36-12 (E1) GR - BR Engine switch off 200 Ω or higher
      G56-34 (CANP) - G55-24 (BATT) BR - L Engine switch off 6 kΩ or higher
      G56-33 (CANN) - G55-24 (BATT) GR - L Engine switch off 6 kΩ or higher
      for Power Management Bus (for 1KD-FTV)
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G57-20 (CANP) - G57-21 (CANN) BR - GR Engine switch off 108 to 132 Ω
      G57-20 (CANP) - C93-1 (E1) BR - BR Engine switch off 200 Ω or higher
      G57-21 (CANN) - C93-1 (E1) GR - BR Engine switch off 200 Ω or higher
      G57-20 (CANP) - G57-23 (BATT) BR - L Engine switch off 6 kΩ or higher
      G57-21 (CANN) - G57-23 (BATT) GR - L Engine switch off 6 kΩ or higher
      for Powertrain Bus (for 1KD-FTV)
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      C92-24 (CAN+) - C92-18 (CAN-) B - W Engine switch off 108 to 132 Ω
      C92-24 (CAN+) - C93-1 (E1) B - BR Engine switch off 200 Ω or higher
      C92-18 (CAN-) - C93-1 (E1) W - BR Engine switch off 200 Ω or higher
      C92-24 (CAN+) - G57-23 (+B) B - L Engine switch off 6 kΩ or higher
      C92-18 (CAN-) - G57-23 (BATT) W - L Engine switch off 6 kΩ or higher

  5. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    A00L05PE10
    Text in Illustration
    *A for V1 Bus *B for MS Bus

    1. Remove the main body ECU (multiplex network body ECU) Click here.

    2. Measure the resistance according to the value(s) in the table below.

      for V1 Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G64-14 (CANH) - G64-13 (CANL) L - W Engine switch off 54 to 69 Ω
      G64-14 (CANH) - A-11 (GND1) L - None Engine switch off 200 Ω or higher
      G64-13 (CANL) - A-11 (GND1) W - None Engine switch off 200 Ω or higher
      G64-14 (CANH) - A-30 (BECU) L - None Engine switch off 6 kΩ or higher
      G64-13 (CANL) - A-30 (BECU) W - None Engine switch off 6 kΩ or higher
      for MS Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G63-9 (CANP) - G63-10 (CANN) P - W Engine switch off 108 to 132 Ω
      G63-9 (CANP) - A-11 (GND1) P - None Engine switch off 200 Ω or higher
      G63-10 (CANN) - A-11 (GND1) W - None Engine switch off 200 Ω or higher
      G63-9 (CANP) - A-30 (BECU) P - None Engine switch off 6 kΩ or higher
      G63-10 (CANN) - A-30 (BECU) W - None Engine switch off 6 kΩ or higher

  6. CHECK COMBINATION METER ASSEMBLY

    A00KZVQE16

    1. Disconnect the G6 combination meter assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G6-40 (CANH) - G6-39 (CANL) LG - W Engine switch off 108 to 132 Ω
      G6-40 (CANH) - G6-1 (EP) LG - W-B Engine switch off 200 Ω or higher
      G6-39 (CANL) - G6-1 (EP) W - W-B Engine switch off 200 Ω or higher
      G6-40 (CANH) - G6-26 (B) LG - L Engine switch off 6 kΩ or higher
      G6-39 (CANL) - G6-26 (B) W - L Engine switch off 6 kΩ or higher

  7. CHECK POWER STEERING ECU ASSEMBLY

    A00KU4SE04

    1. Disconnect the G46 power steering ECU assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G46-1 (CANH) - G46-2 (CANL) L - W Engine switch off 54 to 69 Ω
      G46-1 (CANH) - G46-3 (GND) L - W-B Engine switch off 200 Ω or higher
      G46-2 (CANL) - G46-3 (GND) W - W-B Engine switch off 200 Ω or higher
      G46-1 (CANH) - G48-16 (BAT) L - GR Engine switch off 6 kΩ or higher
      G46-2 (CANL) - G48-16 (BAT) W - GR Engine switch off 6 kΩ or higher

  8. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

    A00KUXEE01

    1. Disconnect the G25 air conditioning amplifier assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Condition Specified Condition
      G25-11 (CANH) - G25-12 (CANL) BR - Y Engine switch off 54 to 69 Ω
      G25-11 (CANH) - G25-14 (GND) BR - W-B Engine switch off 200 Ω or higher
      G25-12 (CANL) - G25-14 (GND) Y - W-B Engine switch off 200 Ω or higher
      G25-11 (CANH) - G25-21 (B) BR - V Engine switch off 6 kΩ or higher
      G25-12 (CANL) - G25-21 (B) Y - V Engine switch off 6 kΩ or higher

  9. CHECK CENTER AIRBAG SENSOR ASSEMBLY

    A00KU9GE07

    1. Disconnect the G1 center airbag sensor assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G1-13 (CANH) - G1-22 (CANL) Y - W Engine switch off 54 to 69 Ω
      G1-13 (CANH) - G1-25 (E1) Y - W-B Engine switch off 200 Ω or higher
      G1-22 (CANL) - G1-25 (E1) W - W-B Engine switch off 200 Ω or higher
      G1-13 (CANH) - G48-16 (BAT) Y - GR Engine switch off 6 kΩ or higher
      G1-22 (CANL) - G48-16 (BAT) W - GR Engine switch off 6 kΩ or higher

  10. CHECK MASTER CYLINDER SOLENOID (SKID CONTROL ECU)

    A00L0MYE02

    1. Disconnect the A7 master cylinder solenoid (skid control ECU) connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A7-11 (CANH) - A7-25 (CANL) B - W Engine switch off 54 to 69 Ω
      A7-11 (CANH) - A7-1 (GND1) B - W-B Engine switch off 200 Ω or higher
      A7-25 (CANL) - A7-1 (GND1) W - W-B Engine switch off 200 Ω or higher
      A7-11 (CANH) - A7-2 (+BM1) B - B Engine switch off 6 kΩ or higher
      A7-25 (CANL) - A7-2 (+BM1) W - B Engine switch off 6 kΩ or higher

  11. CHECK SPIRAL CABLE SUB-ASSEMBLY (STEERING ANGLE SENSOR)

    A00KWSYE04

    1. Disconnect the G33 spiral cable sub-assembly (steering angle sensor) connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G33-4 (CANH) - G33-3 (CANL) G - W Engine switch off 54 to 69 Ω
      G33-4 (CANH) - G33-2 (ESS) G - W-B Engine switch off 200 Ω or higher
      G33-3 (CANL) - G33-2 (ESS) W - W-B Engine switch off 200 Ω or higher
      G33-4 (CANH) - G33-6 (BAT) G - L Engine switch off 6 kΩ or higher
      G33-3 (CANL) - G33-6 (BAT) W - L Engine switch off 6 kΩ or higher

  12. CHECK YAW RATE SENSOR ASSEMBLY

    A00KYOBE03

    1. Disconnect the G52 yaw rate sensor assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G52-3 (CANH) - G52-2 (CANL) R - W Engine switch off 54 to 69 Ω
      G52-3 (CANH) - G52-1 (GND) R - W-B Engine switch off 200 Ω or higher
      G52-2 (CANL) - G52-1 (GND) W - W-B Engine switch off 200 Ω or higher
      G52-3 (CANH) - G48-16 (BAT) R - GR Engine switch off 6 kΩ or higher
      G52-2 (CANL) - G48-16 (BAT) W - GR Engine switch off 6 kΩ or higher

  13. CHECK CERTIFICATION ECU

    A00KZ9LE15

    1. Disconnect the G38 certification ECU connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G38-9 (CANH) - G38-10 (CANL) P - W Engine switch off 54 to 69 Ω
      G38-9 (CANH) - G38-15 (E) P - W-B Engine switch off 200 Ω or higher
      G38-10 (CANL) - G38-15 (E) W - W-B Engine switch off 200 Ω or higher
      G38-9 (CANH) - G38-1 (+B) P - V Engine switch off 6 kΩ or higher
      G38-10 (CANL) - G38-1 (+B) W - V Engine switch off 6 kΩ or higher

  14. CHECK POWER MANAGEMENT CONTROL ECU

    A00KY00E07
    Text in Illustration
    *A for V1 Bus *B for Power Management Bus
    *C for V2 Bus - -

    1. Disconnect the G51 power management control ECU connector.

    2. Measure the resistance according to the value(s) in the table below.

      for V1 Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G51-14 (CA1H) - G51-13 (CA1L) BR - W Engine switch off 54 to 69 Ω
      G51-14 (CA1H) - G51-6 (GND) BR - W-B Engine switch off 200 Ω or higher
      G51-13 (CA1L) - G51-6 (GND) W - W-B Engine switch off 200 Ω or higher
      G51-14 (CA1H) - G51-1 (AM22) BR - B Engine switch off 6 kΩ or higher
      G51-13 (CA1L) - G51-1 (AM22) W - B Engine switch off 6 kΩ or higher
      for V2 Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G51-26 (CA2H) - G51-25 (CA2L) V - W Engine switch off 108 to 132 Ω
      G51-26 (CA2H) - G51-6 (GND) V - W-B Engine switch off 200 Ω or higher
      G51-25 (CA2L) - G51-6 (GND) W - W-B Engine switch off 200 Ω or higher
      G51-26 (CA2H) - G51-1 (AM22) V - B Engine switch off 6 kΩ or higher
      G51-25 (CA2L) - G51-1 (AM22) W - B Engine switch off 6 kΩ or higher
      for Power Management Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G51-12 (CA3P) - G51-11 (CA3N) BR - W Engine switch off 108 to 132 Ω
      G51-12 (CA3P) - G51-6 (GND) BR - W-B Engine switch off 200 Ω or higher
      G51-11 (CA3N) - G51-6 (GND) W - W-B Engine switch off 200 Ω or higher
      G51-12 (CA3P) - G51-1 (AM22) BR - B Engine switch off 6 kΩ or higher
      G51-11 (CA3N) - G51-1 (AM22) W - B Engine switch off 6 kΩ or higher

  15. CHECK DISPLAY AND NAVIGATION MODULE DISPLAY (AVN) (w/ Navigation System)

    A00KYHVE01

    1. Disconnect the H4 display and navigation module display (AVN) connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      H4-21 (CANH) - H4-22 (CANL) W - P Engine switch off 54 to 69 Ω
      H4-21 (CANH) - H4-10 (GND1) W - BR Engine switch off 200 Ω or higher
      H4-22 (CANL) - H4-10 (GND1) P - BR Engine switch off 200 Ω or higher
      H4-21 (CANH) - H4-1 (+B1) W - SB Engine switch off 6 kΩ or higher
      H4-22 (CANL) - H4-1 (+B1) P - SB Engine switch off 6 kΩ or higher

  16. CHECK FOUR WHEEL DRIVE CONTROL ECU

    A00KT5ZE03

    1. Disconnect the G53 and G54 four wheel drive control ECU connectors.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G53-19 (CANH) - G53-20 (CANL) G - W Engine switch off 54 to 69 Ω
      G53-19 (CANH) - G54-4 (GND) G - W-B Engine switch off 200 Ω or higher
      G53-20 (CANL) - G54-4 (GND) W - W-B Engine switch off 200 Ω or higher
      G53-19 (CANH) - G48-16 (BAT) G - GR Engine switch off 6 kΩ or higher
      G53-20 (CANL) - G48-16 (BAT) W - GR Engine switch off 6 kΩ or higher

  17. CHECK SUSPENSION CONTROL ECU (w/ Air Suspension System)

    A00KW45E01

    1. Disconnect the A49 suspension control ECU connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A49-7 (CANH) - A49-8 (CANL) GR - W Engine switch off 54 to 69 Ω
      A49-7 (CANH) - A49-5 (GND) GR - W-B Engine switch off 200 Ω or higher
      A49-8 (CANL) - A49-5 (GND) W - W-B Engine switch off 200 Ω or higher
      A49-7 (CANH) - A49-3 (B) GR - GR Engine switch off 6 kΩ or higher
      A49-8 (CANL) - A49-3 (B) W - GR Engine switch off 6 kΩ or higher

  18. CHECK STABILIZER CONTROL ECU (w/ Kinetic Dynamic Suspension System)

    A00L0BME03

    1. Disconnect the G123 stabilizer control ECU connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G123-29 (CANH) - G123-28 (CANL) V - W Engine switch off 54 to 69 Ω
      G123-29 (CANH) - G123-22 (GND) V - W-B Engine switch off 200 Ω or higher
      G123-28 (CANL) - G123-22 (GND) W - W-B Engine switch off 200 Ω or higher
      G123-29 (CANH) - G48-16 (BAT) V - GR Engine switch off 6 kΩ or higher
      G123-28 (CANL) - G48-16 (BAT) W - GR Engine switch off 6 kΩ or higher

  19. CHECK SEAT BELT CONTROL ECU (w/ Pre-crash Safety System)

    A00KX6LE29

    1. Disconnect the G117 and G118 seat belt control ECU connectors.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G118-1 (CANH) - G118-2 (CANL) L - W Engine switch off 54 to 69 Ω
      G118-1 (CANH) - G117-8 (PGND) L - W-B Engine switch off 200 Ω or higher
      G118-2 (CANL) - G117-8 (PGND) W - W-B Engine switch off 200 Ω or higher
      G118-1 (CANH) - G117-7 (+B) L - W Engine switch off 6 kΩ or higher
      G118-2 (CANL) - G117-7 (+B) W - W Engine switch off 6 kΩ or higher

  20. CHECK DRIVING SUPPORT ECU ASSEMBLY (w/ Dynamic Radar Cruise Control System)

    A00KW8SE04

    Note


    • As disconnecting the connector to perform inspections may cause DTCs to be stored, clear DTCs after performing inspections.

    • As the connector may be damaged if a load of more than 10 kg (22 lb) is applied it, do not apply any more load than necessary to the connector.


    1. Disconnect the G119 driving support ECU assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G119-39 (CA2H) - G119-17 (CA2L) G - W Engine switch off 54 to 69 Ω
      G119-39 (CA2H) - G119-25 (GND) G - BR Engine switch off 200 Ω or higher
      G119-17 (CA2L) - G119-25 (GND) W - BR Engine switch off 200 Ω or higher
      G119-39 (CA2H) - G119-30 (B) G - G Engine switch off 6 kΩ or higher
      G119-17 (CA2L) - G119-30 (B) W - G Engine switch off 6 kΩ or higher

  21. CHECK PARKING ASSIST ECU (w/ Parking Assist Monitor System and/or Side Monitor System)

    A00KUSKE09

    1. Disconnect the I3 parking assist ECU connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      I3-22 (CANH) - I3-21 (CANL) B - W Engine switch off 54 to 69 Ω
      I3-22 (CANH) - I3-3 (GND1) B - W-B Engine switch off 200 Ω or higher
      I3-21 (CANL) - I3-3 (GND1) W - W-B Engine switch off 200 Ω or higher
      I3-22 (CANH) - I3-1 (+B) B - L Engine switch off 6 kΩ or higher
      I3-21 (CANL) - I3-1 (+B) W - L Engine switch off 6 kΩ or higher

  22. CHECK CLEARANCE WARNING ECU ASSEMBLY (w/ TOYOTA Parking Assist-sensor System [for 8 Sensor Type])

    A00KZK6E01

    1. Disconnect the I1 clearance warning ECU assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      I1-3 (R1) - I1-5 (R2) B - W Engine switch off 54 to 69 Ω
      I1-3 (R1) - I1-17 (E) B - W-B Engine switch off 200 Ω or higher
      I1-5 (R2) - I1-17 (E) W - W-B Engine switch off 200 Ω or higher
      I1-3 (R1) - G48-16 (BAT) B - GR Engine switch off 6 kΩ or higher
      I1-5 (R2) - G48-16 (BAT) W - GR Engine switch off 6 kΩ or higher

  23. CHECK HEADLIGHT SWIVEL ECU ASSEMBLY (AFS ECU) (w/ Adaptive Front-lighting System)

    A00KTKYE01

    1. Disconnect the A58 headlight swivel ECU assembly (AFS ECU) connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A58-12 (CANH) - A58-13 (CANL) V - W Engine switch off 54 to 69 Ω
      A58-12 (CANH) - A58-22 (E1) V - W-B Engine switch off 200 Ω or higher
      A58-13 (CANL) - A58-22 (E1) W - W-B Engine switch off 200 Ω or higher
      A58-12 (CANH) - G48-16 (BAT) V - GR Engine switch off 6 kΩ or higher
      A58-13 (CANL) - G48-16 (BAT) W - GR Engine switch off 6 kΩ or higher

  24. CHECK MULTIPLEX TILT AND TELESCOPIC ECU (for Power Tilt and Power Telescopic Steering Column)

    A00KXBNE01

    1. Disconnect the G116 multiplex tilt and telescopic ECU connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G116-5 (CANP) - G116-14 (CANN) GR - W Engine switch off 54 to 69 Ω
      G116-5 (CANP) - G116-11 (GND) GR - W-B Engine switch off 200 Ω or higher
      G116-14 (CANN) - G116-11 (GND) W - W-B Engine switch off 200 Ω or higher
      G116-5 (CANP) - G116-2 (+B) GR - G Engine switch off 6 kΩ or higher
      G116-14 (CANN) - G116-2 (+B) W - G Engine switch off 6 kΩ or higher

  25. CHECK FRONT POWER SEAT SWITCH LH (w/ Seat Position Memory)

    A00KZWHE07

    1. Disconnect the b5 and b4 front power seat switch LH connectors.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      b5-8 (CANP) - b5-7 (CANN) L - W Engine switch off 54 to 69 Ω
      b5-8 (CANP) - b4-2 (GND) L - W-B Engine switch off 200 Ω or higher
      b5-7 (CANN) - b4-2 (GND) W - W-B Engine switch off 200 Ω or higher
      b5-8 (CANP) - b4-7 (+B) L - W Engine switch off 6 kΩ or higher
      b5-7 (CANN) - b4-7 (+B) W - W Engine switch off 6 kΩ or higher

  26. CHECK DRIVING SUPPORT SWITCH CONTROL ECU (w/ Multi-function Switch)

    A00KWEIE01

    1. Disconnect the G76 driving support switch control ECU connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G76-9 (CANP) - G76-10 (CANN) R - W Engine switch off 54 to 69 Ω
      G76-9 (CANP) - G76-16 (GND) R - W-B Engine switch off 200 Ω or higher
      G76-10 (CANN) - G76-16 (GND) W - W-B Engine switch off 200 Ω or higher
      G76-9 (CANP) - G76-6 (+B) R - L Engine switch off 6 kΩ or higher
      G76-10 (CANN) - G76-6 (+B) W - L Engine switch off 6 kΩ or higher