CAN COMMUNICATION SYSTEM Short to GND in CAN Bus Line

DTC Code DTC Name
Short to GND in CAN Bus Line

DESCRIPTION

There may be a short circuit between the CAN bus lines and GND when the resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 Ω.

Symptom

Trouble Area

The resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 Ω.

  • Short between CAN bus lines and GND

  • ECM

  • Certification ECU

  • Four wheel drive control ECU

  • Power management control ECU

  • Display and navigation module display*

  • Center airbag sensor assembly

  • Spiral with sensor cable sub-assembly

  • Yaw rate sensor assembly

  • Main body ECU (multiplex network body ECU)

  • Master cylinder solenoid (skid control ECU)

  • Combination meter assembly

  • No. 1 junction connector

  • No. 2 junction connector

  • No. 3 junction connector

  • No. 4 junction connector

  • *: w/ Navigation System

WIRING DIAGRAM

C278546E01
C216938E02

CAUTION / NOTICE / HINT

Tip:

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 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

      Result

      Result

      NEXT
    NEXT

  2. CHECK FOR SHORT TO GND IN CAN BUS WIRE (DLC3 BRANCH WIRE)

    1. H102621C09

      *a

      Front view of DLC3

      Disconnect the G79 No. 3 junction connector connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G37-6 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G37-14 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3 (CANH, CANL)

    OK

  3. CONNECT CONNECTOR

    1. Reconnect the G79 No. 3 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  4. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR SIDE)

    1. H102621C10

      *a

      Front view of DLC3

      Disconnect the G82 No. 1 junction connector connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G37-6 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G37-14 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    CONNECT CONNECTORClick here

    OK

  5. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - CERTIFICATION ECU)

    1. C220697C44

      *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

      G82-3 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G82-14 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    CONNECT CONNECTORClick here

    OK

  6. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)

    1. C220697C45

      *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

      G82-4 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G82-15 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    CONNECT CONNECTORClick here

    OK

  7. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - FOUR WHEEL DRIVE CONTROL ECU)

    1. C220697C46

      *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

      G82-2 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G82-13 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    CONNECT CONNECTORClick here

    OK

  8. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ECM)

    1. C220697C47

      *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

      G82-6 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G82-17 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE NO. 1 JUNCTION CONNECTOR

    NG

    CONNECT CONNECTORClick here

  9. CONNECT CONNECTOR

    1. Reconnect the G82 No. 1 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  10. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CERTIFICATION ECU)

    1. C217227C02

      *a

      Rear view of wire harness connector

      (to Certification ECU)

      *b

      Front view of DLC3

      Disconnect the G26 certification ECU connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G26-9 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G26-10 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE CERTIFICATION ECU

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CERTIFICATION ECU (CANH, CANL)

  11. CONNECT CONNECTOR

    1. Reconnect the G82 No. 1 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  12. CHECK FOR SHORT TO GND IN CAN BUS WIRE (POWER MANAGEMENT CONTROL ECU)

    1. C217219C03

      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      *b

      Front view of DLC3

      Disconnect the G39 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

      G39-14 (CA1H) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G39-13 (CA1L) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE POWER MANAGEMENT CONTROL ECU

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO POWER MANAGEMENT CONTROL ECU (CA1H, CA1L)

  13. CONNECT CONNECTOR

    1. Reconnect the G82 No. 1 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  14. CHECK FOR SHORT TO GND IN CAN BUS WIRE (FOUR WHEEL DRIVE CONTROL ECU)

    1. C217223C03

      *a

      Rear view of wire harness connector

      (to Four Wheel Drive Control ECU)

      *b

      Front view of DLC3

      Disconnect the G41 four wheel drive control ECU connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G41-19 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G41-20 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE FOUR WHEEL DRIVE CONTROL ECU

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO FOUR WHEEL DRIVE CONTROL ECU (CANH, CANL)

  15. CONNECT CONNECTOR

    1. Reconnect the G82 No. 1 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  16. CHECK FOR SHORT TO GND IN CAN BUS WIRE (ECM)

    1. C217225C06

      *A

      for 1UR-FE

      *B

      for 1GR-FE

      *a

      Rear view of wire harness connector

      (to ECM)

      *b

      Front view of DLC3

      Disconnect the G45*1 or G107*2 ECM connector.

      *1: for 1UR-FE

      *2: for 1GR-FE

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

      Standard Resistance

      Table 1. for 1UR-FE

      Tester Connection

      Switch Condition

      Specified Condition

      G45-32 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G45-31 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher
      Table 2. for 1GR-FE

      Tester Connection

      Switch Condition

      Specified Condition

      G107-32 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G107-31 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      Proceed to

      OK (for 1UR-FE)

      A

      OK (for 1GR-FE)

      B

      NG

      C
    A

    REPLACE ECM

    Click here

    B

    REPLACE ECM

    Click here

    C

    REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (CANH, CANL)

  17. CONNECT CONNECTOR

    1. Reconnect the G82 No. 1 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  18. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

    1. C220697C48

      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)

      *b

      Front view of DLC3

      Disconnect the G85 No. 2 junction connector connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G85-1 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G85-12 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

    OK

  19. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR SIDE)

    1. H102621C11

      *a

      Front view of DLC3

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G37-6 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G37-14 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    CONNECT CONNECTORClick here

    OK

  20. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - DISPLAY AND NAVIGATION MODULE DISPLAY)

    Tip:

    For vehicles without a navigation system, go to "Check for Short to GND in CAN Bus Wire (No. 2 Junction Connector - Center Airbag Sensor)".

    1. C220697C49

      *a

      Rear view of wire harness connector

      (to No. 2 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

      G85-2 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G85-13 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    CONNECT CONNECTORClick here

    OK

  21. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR)

    1. C220697C50

      *a

      Rear view of wire harness connector

      (to No. 2 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

      G85-5 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G85-16 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    CONNECT CONNECTORClick here

    OK

  22. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - SPIRAL WITH SENSOR CABLE)

    1. C220697C51

      *a

      Rear view of wire harness connector

      (to No. 2 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

      G85-3 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G85-14 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    CONNECT CONNECTORClick here

    OK

  23. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - YAW RATE SENSOR)

    1. C220697C52

      *a

      Rear view of wire harness connector

      (to No. 2 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

      G85-4 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G85-15 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE NO. 2 JUNCTION CONNECTOR

    NG

    CONNECT CONNECTORClick here

  24. CONNECT CONNECTOR

    1. Reconnect the G85 No. 2 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  25. CHECK FOR SHORT TO GND IN CAN BUS WIRE (DISPLAY AND NAVIGATION MODULE DISPLAY)

    1. C217226C02

      *a

      Rear view of wire harness connector

      (to Display and Navigation Module Display)

      *b

      Front view of DLC3

      Disconnect the H4 display and navigation module display connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      H4-21 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      H4-22 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DISPLAY AND NAVIGATION MODULE DISPLAY (CANH, CANL)

  26. CONNECT CONNECTOR

    1. Reconnect the G85 No. 2 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  27. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CENTER AIRBAG SENSOR)

    1. C221253C02

      *a

      Rear view of wire harness connector

      (to Center Airbag Sensor Assembly)

      *b

      Front view of DLC3

      Disconnect the G1 center airbag sensor assembly connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G1-13 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G1-22 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CENTER AIRBAG SENSOR (CANH, CANL)

  28. CONNECT CONNECTOR

    1. Reconnect the G85 No. 2 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  29. CHECK FOR SHORT TO GND IN CAN BUS WIRE (SPIRAL WITH SENSOR CABLE)

    1. C217221C02

      *a

      Rear view of wire harness connector

      (to Spiral with Sensor Cable Sub-assembly)

      *b

      Front view of DLC3

      Disconnect the G21 spiral with sensor cable sub-assembly connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G21-4 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G21-3 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SPIRAL WITH SENSOR CABLE (CANH, CANL)

  30. CONNECT CONNECTOR

    1. Reconnect the G85 No. 2 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  31. CHECK FOR SHORT TO GND IN CAN BUS WIRE (YAW RATE SENSOR)

    1. C217220C02

      *a

      Front view of wire harness connector

      (to Yaw Rate Sensor Assembly)

      *b

      Front view of DLC3

      Disconnect the G40 yaw rate sensor assembly connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G40-3 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G40-2 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE YAW RATE SENSOR ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO YAW RATE SENSOR (CANH, CANL)

  32. CONNECT CONNECTOR

    1. Reconnect the G85 No. 2 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  33. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

    1. C220697C53

      *a

      Rear view of wire harness connector

      (to No. 3 Junction Connector)

      *b

      Front view of DLC3

      Disconnect the G79 No. 3 junction connector connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G79-1 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G79-12 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

    OK

  34. CONNECT CONNECTOR

    1. Reconnect the G79 No. 3 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  35. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 4 JUNCTION CONNECTOR SIDE)

    1. H102621C12

      *a

      Front view of DLC3

      Disconnect the A59 No. 4 junction connector connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G37-6 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G37-14 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    CONNECT CONNECTORClick here

    OK

  36. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 4 JUNCTION CONNECTOR - SKID CONTROL ECU)

    1. C220697C54

      *a

      Rear view of wire harness connector

      (to No. 4 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

      A59-11 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      A59-22 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    CONNECT CONNECTORClick here

    OK

  37. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 4 JUNCTION CONNECTOR - COMBINATION METER)

    1. C220697C55

      *a

      Rear view of wire harness connector

      (to No. 4 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

      A59-10 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      A59-21 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE NO. 4 JUNCTION CONNECTOR

    NG

    CONNECT CONNECTORClick here

  38. CONNECT CONNECTOR

    1. Reconnect the A59 No. 4 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  39. CHECK FOR SHORT TO GND IN CAN BUS WIRE (SKID CONTROL ECU)

    1. C217218C02

      *a

      Front view of wire harness connector

      (to Master Cylinder Solenoid [Skid Control ECU])

      *b

      Front view of DLC3

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

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      A7-11 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      A7-25 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE MASTER CYLINDER SOLENOID

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SKID CONTROL ECU (CANH, CANL)

  40. CONNECT CONNECTOR

    1. Reconnect the A59 No. 4 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  41. CHECK FOR SHORT TO GND IN CAN BUS WIRE (COMBINATION METER)

    1. C217223C05

      *a

      Rear view of wire harness connector

      (to Combination Meter Assembly)

      *b

      Front view of DLC3

      Disconnect the G3 combination meter assembly connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G3-40 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G3-39 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE COMBINATION METER ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER (CANH, CANL)

  42. CONNECT CONNECTOR

    1. Reconnect the A59 No. 4 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  43. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

    1. C220697C56

      *a

      Rear view of wire harness connector

      (to No. 3 Junction Connector)

      *b

      Front view of DLC3

      Disconnect the G79 No. 3 junction connector connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G79-6 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G79-17 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

    OK

  44. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - MAIN BODY ECU)

    1. C220697C57

      *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

      G79-3 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G79-14 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE NO. 3 JUNCTION CONNECTOR

    NG

  45. CONNECT CONNECTOR

    1. Reconnect the G79 No. 3 junction connector connector.

      Result

      Result

      NEXT
    NEXT

  46. CHECK FOR SHORT TO GND IN CAN BUS WIRE (MAIN BODY ECU)

    1. C217219C04

      *a

      Rear view of wire harness connector

      (to Main Body ECU [Multiplex Network Body ECU])

      *b

      Front view of DLC3

      Disconnect the G47 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      G47-14 (CANH) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      G47-13 (CANL) - G37-4 (CG)

      Engine switch off

      200 Ω or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO MAIN BODY ECU (CANH, CANL)