CAN COMMUNICATION SYSTEM (for LHD with Entry and Start System), Diagnostic DTC:U1002

DTC Code DTC Name
U1002 Lost Communication with Gateway Module (Power Management1)

DESCRIPTION


DTC Code DTC Detection Condition Trouble Area
U1002 Lost communication with the gateway module (Power Management1).
  • V2 bus circuit

  • Parking assist ECU CAN branch wire or connector*1

  • Clearance warning ECU assembly CAN branch wire or connector*2

  • Driving support ECU assembly CAN branch wire or connector*3

  • Stabilizer control ECU CAN branch wire or connector*4

  • Seat belt control ECU CAN branch wire or connector*3

  • Blind spot monitor sensor LH CAN branch wire or connector*5

  • Suspension control ECU CAN branch wire or connector*6

  • Headlight swivel ECU assembly CAN branch wire or connector*7

  • Power management control ECU CAN main wire or connector

  • Parking assist ECU*1

  • Clearance warning ECU assembly*2

  • Driving support ECU assembly*3

  • Stabilizer control ECU*4

  • Seat belt control ECU*3

  • Blind spot monitor sensor LH*5

  • Suspension control ECU*6

  • Headlight swivel ECU assembly*7

  • Power management control ECU

  • No. 1 junction connector

  • No. 3 junction connector

  • No. 5 junction connector

  • No. 6 junction connector*5

  • No. 7 junction connector


WIRING DIAGRAM

A01DNCJE02
A01DUD7E02

INSPECTION PROCEDURE

Tech Tips

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

PROCEDURE


  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL


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

      CAUTION:

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


    NEXT
  2. CHECK CAN BUS WIRE (CAN MAIN WIRE FOR DISCONNECTION, BUS LINE FOR SHORT CIRCUIT)


    1. A01DPI7E30
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition Resistance: Malfunction
      G51-26 (CA2H) - G51-25 (CA2L) Engine switch off 54 to 69 Ω Below 53 Ω: Short in line
      G51-26 (CA2H) - G51-25 (CA2L) Engine switch off 54 to 69 Ω Higher than 70 Ω: Open in CAN main bus line
      G51-26 (CA2H) - G51-1 (AM22) Engine switch off 6 kΩ or higher Below 6 kΩ: +B short
      G51-25 (CA2L) - G51-1 (AM22) Engine switch off 6 kΩ or higher Below 6 kΩ: +B short
      G51-26 (CA2H) - G51-6 (GND) Engine switch off 200 Ω or higher Below 200 Ω: Ground short
      G51-25 (CA2L) - G51-6 (GND) Engine switch off 200 Ω or higher Below 200 Ω: Ground short
      Result
      Result Proceed to

      NG


      • Open in CAN main bus line

      A

      NG


      • Short in line

      • +B short

      • Ground short

      B
      OK C

    B
    C
    A
  3. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)


    1. A01DSESE84
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 3 Junction Connector)

      Disconnect the G95 No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G95-1 (CANH) - G95-12 (CANL) Engine switch off 108 to 132 Ω

    NG
    OK
  4. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)


    1. A01DSESE85
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 3 Junction Connector)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G95-3 (CANH) - G95-14 (CANL) Engine switch off 108 to 132 Ω

    NG
    OK
  5. CONNECT CONNECTOR


    1. Reconnect the G95 No. 3 junction connector.


    NEXT
  6. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)


    1. A01DSESE86
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)

      Disconnect the G98 No. 1 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G98-2 (CANH) - G98-13 (CANL) Engine switch off 108 to 132 Ω

    NG
    OK
  7. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)


    1. A01DSESE87
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G98-1 (CANH) - G98-12 (CANL) Engine switch off 108 to 132 Ω

    NG
    OK
  8. CONNECT CONNECTOR


    1. Reconnect the G98 No. 1 junction connector.


    NEXT
  9. CHECK FOR OPEN IN CAN BUS MAIN WIRE (POWER MANAGEMENT CONTROL ECU - NO. 1 JUNCTION CONNECTOR)


    1. A01DRF6E89
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the G51 power management control ECU connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G51-26 (CA2H) - G51-25 (CA2L) Engine switch off 108 to 132 Ω

    NG
    OK
  10. CONNECT CONNECTOR


    1. Reconnect the G95 No. 3 junction connector.


    NEXT
  11. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)


    1. A01DSESE88
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 5 Junction Connector)

      Disconnect the A73 No. 5 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A73-1 (CANH) - A73-12 (CANL) Engine switch off 108 to 132 Ω
      Result
      Result Proceed to
      OK (w/ Blind Spot Monitor System) A
      OK (w/o Blind Spot Monitor System) B
      NG C

    B
    C
    A
  12. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)


    1. A01DSESE75
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 5 Junction Connector)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A73-2 (CANH) - A73-13 (CANL) Engine switch off 108 to 132 Ω

    NG
    OK
  13. CONNECT CONNECTOR


    1. Reconnect the A73 No. 5 junction connector.


    NEXT
  14. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)


    1. A01DSESE89
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 6 Junction Connector)

      Disconnect the R47 No. 6 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      R47-1 (CANH) - R47-12 (CANL) Engine switch off 108 to 132 Ω

    NG
    OK
  15. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)


    1. A01DSESE90
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 6 Junction Connector)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      R47-3 (CANH) - R47-14 (CANL) Engine switch off 108 to 132 Ω

    NG
    OK
  16. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)


    1. A01DSESE91
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 5 Junction Connector)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A73-2 (CANH) - A73-13 (CANL) Engine switch off 108 to 132 Ω

    NG
    OK
  17. CONNECT CONNECTOR


    1. Reconnect the A73 No. 5 junction connector.


    NEXT
  18. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 7 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)


    1. A01DS18E69
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 7 Junction Connector)

      Disconnect the G102 No. 7 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G102-3 (CANH) - G102-2 (CANL) Engine switch off 108 to 132 Ω

    NG
    OK
  19. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR SIDE)


    1. A01DPI7E31
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

      Disconnect the A73 No. 5 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G51-26 (CA2H) - G51-25 (CA2L) Engine switch off 108 to 132 Ω
      G51-26 (CA2H) - G51-6 (GND) Engine switch off 200 Ω or higher
      G51-25 (CA2L) - G51-6 (GND) Engine switch off 200 Ω or higher
      G51-26 (CA2H) - G51-1 (AM22) Engine switch off 6 kΩ or higher
      G51-25 (CA2L) - G51-1 (AM22) Engine switch off 6 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG (w/ Blind Spot Monitor System) B
      NG (w/o Blind Spot Monitor System) C

    B
    C
    A
  20. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - SUSPENSION CONTROL ECU)

    Note

    For vehicles without an air suspension system, go to "Check for Short in CAN Bus Wires (No. 5 Junction Connector - Headlight Swivel ECU Assembly)".


    1. A01DUO9E28
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 5 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A73-3 (CANH) - A73-14 (CANL) Engine switch off 200 Ω or higher
      A73-3 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      A73-14 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      A73-3 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      A73-14 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  21. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - HEADLIGHT SWIVEL ECU ASSEMBLY)

    Note

    For vehicles without a halogen headlight, go to "Check for Short in CAN Bus Wires (No. 5 Junction Connector - Power Management Control ECU)".


    1. A01DUO9E29
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 5 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A73-4 (CANH) - A73-15 (CANL) Engine switch off 200 Ω or higher
      A73-4 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      A73-15 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      A73-4 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      A73-15 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  22. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)


    1. A01DUO9E30
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 5 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A73-1 (CANH) - A73-12 (CANL) Engine switch off 108 to 132 Ω
      A73-1 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      A73-12 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      A73-1 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      A73-12 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  23. CONNECT CONNECTOR


    1. Reconnect the A73 No. 5 junction connector.


    NEXT
  24. CHECK FOR SHORT IN CAN BUS WIRES (SUSPENSION CONTROL ECU)


    1. A01DRQWE10
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Suspension Control ECU)

      *b Front view of DLC3

      Disconnect the A49 suspension control ECU connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A49-7 (CANH) - A49-8 (CANL) Engine switch off 54 to 69 Ω
      A49-7 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      A49-8 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      A49-7 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      A49-8 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  25. CONNECT CONNECTOR


    1. Reconnect the A73 No. 5 junction connector.


    NEXT
  26. CHECK FOR SHORT IN CAN BUS WIRES (HEADLIGHT SWIVEL ECU ASSEMBLY)


    1. A01DQE4E08
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Headlight Swivel ECU Assembly)

      *b Front view of DLC3

      Disconnect the A58 headlight swivel ECU assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A58-12 (CANH) - A58-13 (CANL) Engine switch off 54 to 69 Ω
      A58-12 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      A58-13 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      A58-12 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      A58-13 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  27. CONNECT CONNECTOR


    1. Reconnect the A73 No. 5 junction connector.


    NEXT
  28. CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR)


    1. A01DRC1E17
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 7 Junction Connector)

      *b Front view of DLC3

      Disconnect the G102 No. 7 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G102-3 (CANH) - G102-2 (CANL) Engine switch off 108 to 132 Ω
      G102-3 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G102-2 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G102-3 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G102-2 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  29. CONNECT CONNECTOR


    1. Reconnect the A73 No. 5 junction connector.


    NEXT
  30. CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)


    1. A01DUO9E31
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 6 Junction Connector)

      *b Front view of DLC3

      Disconnect the R47 No. 6 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      R47-3 (CANH) - R47-14 (CANL) Engine switch off 108 to 132 Ω
      R47-3 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      R47-14 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      R47-3 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      R47-14 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  31. CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR SIDE)


    1. A01DPI7E32
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G51-26 (CA2H) - G51-25 (CA2L) Engine switch off 108 to 132 Ω
      G51-26 (CA2H) - G51-6 (GND) Engine switch off 200 Ω or higher
      G51-25 (CA2L) - G51-6 (GND) Engine switch off 200 Ω or higher
      G51-26 (CA2H) - G51-1 (AM22) Engine switch off 6 kΩ or higher
      G51-25 (CA2L) - G51-1 (AM22) Engine switch off 6 kΩ or higher

    NG
    OK
  32. CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH)


    1. A01DUO9E22
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 6 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      R47-2 (CANH) - R47-13 (CANL) Engine switch off 200 Ω or higher
      R47-2 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      R47-13 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      R47-2 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      R47-13 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  33. CONNECT CONNECTOR


    1. Reconnect the R47 No. 6 junction connector.


    NEXT
  34. CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR LH)


    1. A01DO5YE11
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Blind Spot Monitor Sensor LH)

      *b Front view of DLC3

      Disconnect the R42 blind spot monitor sensor LH connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      R42-2 (CA1P) - R42-7 (CA1N) Engine switch off 54 to 69 Ω
      R42-2 (CA1P) - G48-4 (CG) Engine switch off 200 Ω or higher
      R42-7 (CA1N) - G48-4 (CG) Engine switch off 200 Ω or higher
      R42-2 (CA1P) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      R42-7 (CA1N) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  35. CONNECT CONNECTOR


    1. Reconnect the R47 No. 6 junction connector.


    NEXT
  36. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)


    1. A01DUO9E16
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 3 Junction Connector)

      *b Front view of DLC3

      Disconnect the G95 No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G95-3 (CANH) - G95-14 (CANL) Engine switch off 108 to 132 Ω
      G95-3 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-14 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-3 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G95-14 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  37. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR SIDE)


    1. A01DPI7E33
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G51-26 (CA2H) - G51-25 (CA2L) Engine switch off 108 to 132 Ω
      G51-26 (CA2H) - G51-6 (GND) Engine switch off 200 Ω or higher
      G51-25 (CA2L) - G51-6 (GND) Engine switch off 200 Ω or higher
      G51-26 (CA2H) - G51-1 (AM22) Engine switch off 6 kΩ or higher
      G51-25 (CA2L) - G51-1 (AM22) Engine switch off 6 kΩ or higher

    NG
    OK
  38. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU)

    Note

    For vehicles without a pre-crash safety system, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Stabilizer Control ECU)".


    1. A01DUO9E20
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 3 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G95-6 (CANH) - G95-17 (CANL) Engine switch off 200 Ω or higher
      G95-6 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-17 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-6 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G95-17 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  39. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - STABILIZER CONTROL ECU)

    Note

    For vehicles without a kinetic dynamic suspension system, replace No. 3 junction connector.


    1. A01DUO9E19
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 3 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G95-5 (CANH) - G95-16 (CANL) Engine switch off 200 Ω or higher
      G95-5 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-16 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-5 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G95-16 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  40. CONNECT CONNECTOR


    1. Reconnect the G95 No. 3 junction connector.


    NEXT
  41. CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU)


    1. A01DT4ZE11
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Seat Belt Control ECU)

      *b Front view of DLC3

      Disconnect the G118 seat belt control ECU connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G118-1 (CANH) - G118-2 (CANL) Engine switch off 54 to 69 Ω
      G118-1 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G118-2 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G118-1 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G118-2 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  42. CONNECT CONNECTOR


    1. Reconnect the G95 No. 3 junction connector.


    NEXT
  43. CHECK FOR SHORT IN CAN BUS WIRES (STABILIZER CONTROL ECU)


    1. A01DPP3E04
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Stabilizer Control ECU)

      *b Front view of DLC3

      Disconnect the G123 stabilizer control ECU connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G123-29 (CANH) - G123-28 (CANL) Engine switch off 54 to 69 Ω
      G123-29 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G123-28 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G123-29 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G123-28 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  44. CONNECT CONNECTOR


    1. Reconnect the A73 No. 5 junction connector.


    NEXT
  45. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)


    1. A01DUO9E16
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 3 Junction Connector)

      *b Front view of DLC3

      Disconnect the G95 No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G95-3 (CANH) - G95-14 (CANL) Engine switch off 108 to 132 Ω
      G95-3 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-14 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-3 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G95-14 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  46. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR SIDE)


    1. A01DPI7E33
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G51-26 (CA2H) - G51-25 (CA2L) Engine switch off 108 to 132 Ω
      G51-26 (CA2H) - G51-6 (GND) Engine switch off 200 Ω or higher
      G51-25 (CA2L) - G51-6 (GND) Engine switch off 200 Ω or higher
      G51-26 (CA2H) - G51-1 (AM22) Engine switch off 6 kΩ or higher
      G51-25 (CA2L) - G51-1 (AM22) Engine switch off 6 kΩ or higher

    NG
    OK
  47. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU)

    Note

    For vehicles without a pre-crash safety system, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Stabilizer Control ECU)".


    1. A01DUO9E20
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 3 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G95-6 (CANH) - G95-17 (CANL) Engine switch off 200 Ω or higher
      G95-6 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-17 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-6 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G95-17 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  48. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - STABILIZER CONTROL ECU)

    Note

    For vehicles without a kinetic dynamic suspension system, replace No. 3 junction connector.


    1. A01DUO9E19
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 3 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G95-5 (CANH) - G95-16 (CANL) Engine switch off 200 Ω or higher
      G95-5 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-16 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G95-5 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G95-16 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  49. CONNECT CONNECTOR


    1. Reconnect the G95 No. 3 junction connector.


    NEXT
  50. CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU)


    1. A01DT4ZE11
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Seat Belt Control ECU)

      *b Front view of DLC3

      Disconnect the G118 seat belt control ECU connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G118-1 (CANH) - G118-2 (CANL) Engine switch off 54 to 69 Ω
      G118-1 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G118-2 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G118-1 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G118-2 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  51. CONNECT CONNECTOR


    1. Reconnect the G95 No. 3 junction connector.


    NEXT
  52. CHECK FOR SHORT IN CAN BUS WIRES (STABILIZER CONTROL ECU)


    1. A01DPP3E04
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Stabilizer Control ECU)

      *b Front view of DLC3

      Disconnect the G123 stabilizer control ECU connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G123-29 (CANH) - G123-28 (CANL) Engine switch off 54 to 69 Ω
      G123-29 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G123-28 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G123-29 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G123-28 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  53. CONNECT CONNECTOR


    1. Reconnect the G95 No. 3 junction connector.


    NEXT
  54. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)


    1. A01DUO9E23
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)

      *b Front view of DLC3

      Disconnect the G98 No. 1 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G98-1 (CANH) - G98-12 (CANL) Engine switch off 108 to 132 Ω
      G98-1 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G98-12 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G98-1 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G98-12 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  55. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - PARKING ASSIST ECU)

    Note

    For vehicles without a side monitor system, go to "Check for Short in CAN Bus Wires (No. 1 Junction Connector - Driving Support ECU Assembly)".


    1. A01DUO9E24
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G98-3 (CANH) - G98-14 (CANL) Engine switch off 200 Ω or higher
      G98-3 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G98-14 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G98-3 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G98-14 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  56. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - DRIVING SUPPORT ECU ASSEMBLY)

    Note

    For vehicles without a pre-crash safety system, go to "Check for Short in CAN Bus Wires (No. 1 Junction Connector - Clearance Warning ECU Assembly)".


    1. A01DUO9E25
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G98-4 (CANH) - G98-15 (CANL) Engine switch off 200 Ω or higher
      G98-4 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G98-15 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G98-4 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G98-15 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  57. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY)

    Note

    For vehicles without a TOYOTA parking assist-sensor system, go to "Check for Short in CAN Bus Wires (No. 1 Junction Connector - Power Management Control ECU)".


    1. A01DUO9E26
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G98-5 (CANH) - G98-16 (CANL) Engine switch off 200 Ω or higher
      G98-5 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G98-16 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G98-5 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G98-16 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  58. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)


    1. A01DUO9E27
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)

      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G98-2 (CANH) - G98-13 (CANL) Engine switch off 108 to 132 Ω
      G98-2 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      G98-13 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      G98-2 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G98-13 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  59. CONNECT CONNECTOR


    1. Reconnect the G98 No. 1 junction connector.


    NEXT
  60. CHECK FOR SHORT IN CAN BUS WIRES (PARKING ASSIST ECU)


    1. A01DR61E14
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Parking Assist ECU)

      *b Front view of DLC3

      Disconnect the I7 parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      I7-40 (CANH) - I7-39 (CANL) Engine switch off 54 to 69 Ω
      I7-40 (CANH) - G48-4 (CG) Engine switch off 200 Ω or higher
      I7-39 (CANL) - G48-4 (CG) Engine switch off 200 Ω or higher
      I7-40 (CANH) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      I7-39 (CANL) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  61. CONNECT CONNECTOR


    1. Reconnect the G98 No. 1 junction connector.


    NEXT
  62. CHECK FOR SHORT IN CAN BUS WIRES (DRIVING SUPPORT ECU ASSEMBLY)


    1. A01DR61E15
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Driving Support ECU Assembly)

      *b Front view of DLC3

      Disconnect the G119 driving support ECU assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G119-39 (CA2H) - G119-17 (CA2L) Engine switch off 54 to 69 Ω
      G119-39 (CA2H) - G48-4 (CG) Engine switch off 200 Ω or higher
      G119-17 (CA2L) - G48-4 (CG) Engine switch off 200 Ω or higher
      G119-39 (CA2H) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G119-17 (CA2L) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  63. CONNECT CONNECTOR


    1. Reconnect the G98 No. 1 junction connector.


    NEXT
  64. CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY)


    1. A01DRE3E08
      Text in Illustration
      *A for 4 Sensor Type
      *B for 8 Sensor Type
      *a

      Front view of wire harness connector

      (to Clearance Warning ECU Assembly)

      *b Front view of DLC3

      Disconnect the I1*1 or G154*2 clearance warning ECU assembly connector.


      • *1: for 4 Sensor Type

      • *2: for 8 Sensor Type

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

      Standard Resistance
      for 4 Sensor Type
      Tester Connection Switch Condition Specified Condition
      I1-3 (R1) - I1-5 (R2) Engine switch off 54 to 69 Ω
      I1-3 (R1) - G48-4 (CG) Engine switch off 200 Ω or higher
      I1-5 (R2) - G48-4 (CG) Engine switch off 200 Ω or higher
      I1-3 (R1) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      I1-5 (R2) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      for 8 Sensor Type
      Tester Connection Switch Condition Specified Condition
      G154-3 (R1) - G154-5 (R2) Engine switch off 54 to 69 Ω
      G154-3 (R1) - G48-4 (CG) Engine switch off 200 Ω or higher
      G154-5 (R2) - G48-4 (CG) Engine switch off 200 Ω or higher
      G154-3 (R1) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G154-5 (R2) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  65. CONNECT CONNECTOR


    1. Reconnect the G98 No. 1 junction connector.


    NEXT
  66. CHECK FOR SHORT IN CAN BUS WIRES (POWER MANAGEMENT CONTROL ECU)


    1. A01DOK6E29
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      *b Front view of DLC3

      Disconnect the G51 power management control ECU connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G51-26 (CA2H) - G51-25 (CA2L) Engine switch off 108 to 132 Ω
      G51-26 (CA2H) - G48-4 (CG) Engine switch off 200 Ω or higher
      G51-25 (CA2L) - G48-4 (CG) Engine switch off 200 Ω or higher
      G51-26 (CA2H) - G48-16 (BAT) Engine switch off 6 kΩ or higher
      G51-25 (CA2L) - G48-16 (BAT) Engine switch off 6 kΩ or higher

    NG
    OK
  67. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BATTERY AND BODY GROUND)


    1. A01DRF6E90
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Connect the cable to the negative (-) battery terminal.

      Note

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

    2. Disconnect the G51 power management control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G51-5 (GND2) - Body ground Always Below 1 Ω
      G51-6 (GND) - Body ground Always Below 1 Ω
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      G51-1 (AM22) - Body ground Always 11 to 14 V
      G51-2 (AM21) - Body ground Always 11 to 14 V

    NG
    OK