CAN COMMUNICATION SYSTEM(for LHD) Short in CAN Bus Lines

DTC Code DTC Name
Short in CAN Bus Lines

DESCRIPTION

There may be a short circuit between the CAN bus lines when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 53 Ω.

Symptom

Trouble Area

The resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 53 Ω.

  • Short between CAN bus lines

  • ECM

  • Blind spot monitor sensor LH*1

  • Brake actuator assembly (skid control ECU)

  • Power steering ECU assembly

  • Main body ECU (multiplex network body ECU)

  • Lane departure warning camera*2

  • Air conditioning amplifier assembly

  • Engine stop and start ECU*3

  • Radio and display receiver assembly*4

  • Navigation receiver assembly*5

  • Navigation ECU sub-assembly*6

  • 4WD ECU assembly*7

  • Certification ECU (smart key ECU assembly)*8

  • Spiral with sensor cable sub-assembly (steering angle sensor)*9

  • Airbag sensor assembly

  • Combination meter assembly

  • No. 1 CAN junction connector

  • No. 2 CAN junction connector

  • No. 3 CAN junction connector

  • DLC3 CAN branch wire or connector

*1: w/ Blind Spot Monitor System

*2: w/ Lane Departure Alert System

*3: w/ Stop and Start System

*4: w/ Audio and Visual System (for Radio and Display Type)

*5: w/ Navigation System (for SD)

*6: w/ Navigation System (for HDD)

*7: for 4WD/AWD

*8: w/ Entry and Start System

*9: w/ Vehicle Stability Control System

WIRING DIAGRAM

C277469E01
C277470E05
C277471E04

CAUTION / NOTICE / HINT

Note:

  • Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

    Click here

  • Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.

  • After turning the ignition 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 hereClick hereClick here

  • For vehicles with an entry and start system:

    Before replacing the certification ECU (smart key ECU assembly), refer to the entry and start system.

    Click hereClick here

  • The vehicle is equipped with an SRS (Supplemental Restraint System) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the Precaution in the SRS.

    w/o Occupant Classification System:Click here

    w/ Occupant Classification System:Click here

  • When replacing the main body ECU (multiplex network body ECU), make sure to replace it with a new one.

Tip:

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

  • Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.

  • Connectors that connect to the CAN junction connector can be distinguished by the color of their CAN bus lines. When the connectors have been disconnected from the CAN junction connector, reconnecting the connectors to non-original positions on the CAN junction connector does not affect system performance. However, it is preferred to reconnect the connectors to their original positions to avoid negative effects on the wiring such as tension on the wiring harnesses, and to make future maintenance easier.

PROCEDURE

  1. CHECK FOR SHORT IN CAN BUS WIRES (DLC3 CAN BRANCH WIRE)

    1. C253362C01

      *a

      Front view of DLC3

      Disconnect the cable from the negative (-) battery terminal.

    2. Disconnect the G124 No. 1 CAN junction connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G14-6 (CANH) - G14-14 (CANL)

      Cable disconnected from negative (-) battery terminal

      1 MΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

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

    OK

  2. CONNECT CONNECTOR

    1. Reconnect wire harness No. 1 CAN junction connector.

    Result

    Proceed to

    NEXT
    NEXT

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

    1. C253362C01

      *a

      Front view of DLC3

      Disconnect the N28 No. 3 CAN junction connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G14-6 (CANH) - G14-14 (CANL)

      Cable disconnected from negative (-) battery terminal

      108 to 132 Ω

    Result

    Proceed to

    OK

    NG
    NG

    CONNECT CONNECTORClick here

    OK

  4. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION CONNECTOR)

    1. Disconnect the No. 3 CAN junction connectors.

      C278780C06

      *1

      No. 3 CAN Junction Connector

      -

      -

      *a

      Rear view of wire harness connector

      (to No. 3 CAN Junction Connector)

      -

      -

      Code

      Color (CANH Side)

      Color (CANL Side)

      Connect to

      N27

      Y

      W

      ECM

      N29

      R

      W

      Blind Spot Monitor Sensor LH*

      *: w/ Blind Spot Monitor System

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      N27-1 (CANH) - N27-2 (CANL)

      Cable disconnected from negative (-) battery terminal

      108 to 132 Ω

      N29-1 (CANH) - N29-2 (CANL)*

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      *: w/ Blind Spot Monitor System

    Result

    Result

    Proceed to

    OK

    A

    NG (to ECM CAN main wire)

    B

    NG (to blind spot monitor sensor LH CAN branch wire [w/ Blind Spot Monitor System])

    C
    A

    REPLACE NO. 3 CAN JUNCTION CONNECTOR

    C

    CONNECT CONNECTORClick here

    B

  5. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 3 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  6. CHECK FOR SHORT IN CAN BUS WIRES (ECM)

    1. C277468C01

      *A

      for 2AR-FE, 3ZR-FAE, 3ZR-FE

      *B

      for 1AD-FTV, 2AD-FHV, 2AD-CCo, 2AD-DPF

      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

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

      Standard Resistance

      Table 1. for 2AR-FE, 3ZR-FAE, 3ZR-FE

      Tester Connection

      Condition

      Specified Condition

      A62-13 (CANH) - A62-26 (CANL)

      Cable disconnected from negative (-) battery terminal

      108 to 132 Ω
      Table 2. for 1AD-FTV, 2AD-FHV, 2AD-CCo, 2AD-DPF

      Tester Connection

      Condition

      Specified Condition

      A61-7 (CANH) - A61-6 (CANL)

      Cable disconnected from negative (-) battery terminal

      108 to 132 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE ECM

    for 2AR-FE:Click here

    for 3ZR-FAE:Click hereClick here

    for 3ZR-FE:Click here

    for 1AD-FTV:Click here

    for 2AD-FHV:Click here

    for 2AD-CCo, 2AD-DPF:Click here

    NG

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

  7. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 3 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

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

    1. C268297C01

      *a

      Front view of wire harness connector

      (to Blind Spot Monitor Sensor LH)

      Disconnect the blind spot monitor sensor LH connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      R1-2 (CA1P) - R1-7 (CA1N)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE BLIND SPOT MONITOR SENSOR LH

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO BLIND SPOT MONITOR SENSOR LH (CA1P, CA1N)

  9. CONNECT CONNECTOR

    1. Reconnect wire harness No. 3 CAN junction connector.

    Result

    Proceed to

    NEXT
    NEXT

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

    1. Disconnect the No. 1 CAN junction connector.

      C253921C03

      *1

      No. 1 CAN Junction Connector

      -

      -

      *a

      Rear view of wire harness connector

      (to No. 1 CAN Junction Connector)

      -

      -

      Code

      Color (CANH Side)

      Color (CANL Side)

      Connect to

      G118

      L

      W

      No. 3 CAN Junction Connector

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G118-1 (CANH) - G118-2 (CANL)

      Cable disconnected from negative (-) battery terminal

      108 to 132 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - NO. 3 CAN JUNCTION CONNECTOR)

    OK

  11. CONNECT CONNECTOR

    1. Reconnect wire harness No. 1 CAN junction connector.

    Result

    Proceed to

    NEXT
    NEXT

  12. CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 CAN JUNCTION CONNECTOR SIDE)

    1. C253362C01

      *a

      Front view of DLC3

      Disconnect the G129 No. 2 CAN junction connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G14-6 (CANH) - G14-14 (CANL)

      Cable disconnected from negative (-) battery terminal

      108 to 132 Ω

    Result

    Proceed to

    OK

    NG
    NG

    CONNECT CONNECTORClick here

    OK

  13. CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 CAN JUNCTION CONNECTOR)

    1. Disconnect the No. 2 CAN junction connectors.

      C253921C27

      *1

      No. 2 CAN Junction Connector

      -

      -

      *a

      Rear view of wire harness connector

      (to No. 2 CAN Junction Connector)

      -

      -

      Code

      Color (CANH Side)

      Color (CANL Side)

      Connect to

      G128

      G

      W

      Combination Meter Assembly

      G130

      Y

      W

      • Radio and Display Receiver Assembly*1

      • Navigation Receiver Assembly*2

      • Navigation ECU Sub-assembly*3

      G131

      L

      W

      4WD ECU Assembly*4

      G132

      R

      W

      Certification ECU (Smart Key ECU Assembly)*5

      G133

      BR

      W

      Airbag Sensor Assembly

      G153

      B

      W

      Air Conditioning Amplifier Assembly

      G154

      LG

      W

      Engine Stop and Start ECU*6

      *1: w/ Audio and Visual System (for Radio and Display Type)

      *2: w/ Navigation System (for SD)

      *3: w/ Navigation System (for HDD)

      *4: for 4WD/AWD

      *5: w/ Entry and Start System

      *6: w/ Stop and Start System

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G128-1 (CANH) - G128-2 (CANL)

      Cable disconnected from negative (-) battery terminal

      108 to 132 Ω

      G130-1 (CANH) - G130-2 (CANL)*1, *2, *3

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      G131-1 (CANH) - G131-2 (CANL)*4

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      G132-1 (CANH) - G132-2 (CANL)*5

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      G133-1 (CANH) - G133-2 (CANL)

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      G153-1 (CANH) - G153-2 (CANL)

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      G154-1 (CANH) - G154-2 (CANL)*6

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      *1: w/ Audio and Visual System (for Radio and Display Type)

      *2: w/ Navigation System (for SD)

      *3: w/ Navigation System (for HDD)

      *4: for 4WD/AWD

      *5: w/ Entry and Start System

      *6: w/ Stop and Start System

    Result

    Result

    Proceed to

    OK

    A

    NG (to air conditioning amplifier assembly CAN branch wire)

    B

    NG (to engine stop and start ECU CAN branch wire [w/ Stop and Start System])

    C

    NG (to combination meter assembly CAN main wire)

    D

    NG (to radio and display receiver assembly [w/ Audio and Visual System {for Radio and Display Type}], navigation ECU receiver assembly [w/ Navigation System {for SD}] or navigation ECU sub-assembly [w/ Navigation System {for HDD}] CAN branch wire)

    E

    NG (to 4WD ECU assembly CAN branch wire [for 4WD/AWD])

    F

    NG (to certification ECU [smart key ECU assembly] CAN branch wire [w/ Entry and Start System])

    G

    NG (to airbag sensor assembly CAN branch wire)

    H
    A

    REPLACE NO. 2 CAN JUNCTION CONNECTOR

    C

    CONNECT CONNECTORClick here

    D

    CONNECT CONNECTORClick here

    E

    CONNECT CONNECTORClick here

    F

    CONNECT CONNECTORClick here

    G

    CONNECT CONNECTORClick here

    H

    CONNECT CONNECTORClick here

    B

  14. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 2 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  15. CHECK FOR SHORT IN CAN BUS WIRES (AIR CONDITIONING AMPLIFIER ASSEMBLY)

    1. C277462C01

      *A

      for Automatic Air Conditioning System

      *B

      for Manual Air Conditioning System

      *a

      Rear view of wire harness connector

      (to Air Conditioning Amplifier Assembly)

      Disconnect the air conditioning amplifier assembly connector.

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

      Standard Resistance

      Table 3. for Automatic Air Conditioning System

      Tester Connection

      Condition

      Specified Condition

      G81-11 (CANH) - G81-12 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω
      Table 4. for Manual Air Conditioning System

      Tester Connection

      Condition

      Specified Condition

      G80-8 (CANH) - G80-9 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO AIR CONDITIONING AMPLIFIER ASSEMBLY (CANH, CANL)

  16. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 2 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  17. CHECK FOR SHORT IN CAN BUS WIRES (ENGINE STOP AND START ECU)

    1. C251435C06

      *a

      Rear view of wire harness connector

      (to Engine Stop and Start ECU)

      Disconnect the engine stop and start ECU connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G87-15 (CANH) - G87-16 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE ENGINE STOP AND START ECU

    Click hereClick here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO ENGINE STOP AND START ECU (CANH, CANL)

  18. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 2 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  19. CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER ASSEMBLY)

    1. C221258C08

      *a

      Rear view of wire harness connector

      (to Combination Meter Assembly)

      Disconnect the combination meter assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G16-32 (CANH) - G16-31 (CANL)

      Cable disconnected from negative (-) battery terminal

      108 to 132 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE COMBINATION METER ASSEMBLY

    Click here

    NG

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

  20. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 2 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  21. CHECK VEHICLE TYPE

    1. Check for vehicle types.

      Result

      Proceed to

      w/ Audio and Visual System (for Radio and Display Type)

      w/ Navigation System (for SD)

      w/ Navigation System (for HDD)
    w/ Navigation System (for SD)

    CHECK FOR SHORT IN CAN BUS WIRES (NAVIGATION RECEIVER ASSEMBLY)Click here

    w/ Navigation System (for HDD)

    CHECK FOR SHORT IN CAN BUS WIRES (NAVIGATION ECU SUB-ASSEMBLY)Click here

    w/ Audio and Visual System (for Radio and Display Type)

  22. CHECK FOR SHORT IN CAN BUS WIRES (RADIO AND DISPLAY RECEIVER ASSEMBLY)

    1. E140414C05

      *a

      Front view of wire harness connector

      (to Radio and Display Receiver Assembly)

      Disconnect the radio and display receiver assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G143-9 (CANH) - G143-10 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO RADIO AND DISPLAY RECEIVER ASSEMBLY (CANH, CANL)

  23. CHECK FOR SHORT IN CAN BUS WIRES (NAVIGATION RECEIVER ASSEMBLY)

    1. E140414C06

      *a

      Front view of wire harness connector

      (to Navigation Receiver Assembly)

      Disconnect the navigation receiver assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G139-9 (CANH) - G139-10 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO NAVIGATION RECEIVER ASSEMBLY (CANH, CANL)

  24. CHECK FOR SHORT IN CAN BUS WIRES (NAVIGATION ECU SUB-ASSEMBLY)

    1. E140414C06

      *a

      Front view of wire harness connector

      (to Navigation ECU Sub-assembly)

      Disconnect the navigation ECU sub-assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G139-9 (CANH) - G139-10 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE NAVIGATION ECU SUB-ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO NAVIGATION ECU SUB-ASSEMBLY (CANH, CANL)

  25. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 2 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  26. CHECK FOR SHORT IN CAN BUS WIRES (4WD ECU ASSEMBLY)

    1. C251077C03

      *a

      Rear view of wire harness connector

      (to 4WD ECU Assembly)

      Disconnect the 4WD ECU assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G86-6 (CANH) - G86-5 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE 4WD ECU ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO 4WD ECU ASSEMBLY (CANH, CANL)

  27. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 2 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  28. CHECK FOR OPEN IN CAN BUS WIRES (CERTIFICATION ECU)

    1. C277454C01

      *a

      Front view of wire harness connector

      (to Certification ECU [Smart Key ECU Assembly])

      Disconnect the certification ECU (smart key ECU assembly) connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G84-14 (CANH) - G84-15 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

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

  29. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 2 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  30. CHECK FOR OPEN IN CAN BUS WIRES (AIRBAG SENSOR ASSEMBLY)

    1. C210016C04

      *a

      Rear view of wire harness connector

      (to Airbag Sensor Assembly)

      Disconnect the airbag sensor assembly connector.

      Click here

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G92-13 (CANH) - G92-22 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE AIR BAG SENSOR ASSEMBLY

    Click here

    NG

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

  31. CONNECT CONNECTOR

    1. Reconnect wire harness No. 2 CAN junction connector.

    Result

    Proceed to

    NEXT
    NEXT

  32. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR)

    1. Disconnect the No. 1 CAN junction connectors.

      C253921C21

      *1

      No. 1 CAN Junction Connector

      -

      -

      *a

      Rear view of wire harness connector

      (to No. 1 CAN Junction Connector)

      -

      -

      Code

      Color (CANH Side)

      Color (CANL Side)

      Connect to

      G119

      V

      W

      No. 2 CAN Junction Connector

      G120

      R

      W

      Brake Actuator Assembly (Skid Control ECU)

      G121

      LG

      W

      Power Steering ECU Assembly

      G122

      P

      W

      Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)*1

      G123

      Y

      W

      Main Body ECU (Multiplex Network Body ECU)

      G125

      G

      W

      Lane Departure Warning Camera*2

      *1: w/ Vehicle Stability Control System

      *2: w/ Lane Departure Alert System

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G119-1 (CANH) - G119-2 (CANL)

      Cable disconnected from negative (-) battery terminal

      108 to 132 Ω

      G120-1 (CANH) - G120-2 (CANL)

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      G121-1 (CANH) - G121-2 (CANL)

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      G122-1 (CANH) - G122-2 (CANL)*1

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      G123-1 (CANH) - G123-2 (CANL)

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      G125-1 (CANH) - G125-2 (CANL)*2

      Cable disconnected from negative (-) battery terminal

      200 Ω or higher

      *1: w/ Vehicle Stability Control System

      *2: w/ Lane Departure Alert System

    Result

    Result

    Proceed to

    OK

    A

    NG (to brake actuator assembly [skid control ECU] CAN branch wire)

    B

    NG (to power steering ECU assembly CAN branch wire)

    C

    NG (to spiral with sensor cable sub-assembly [steering angle sensor] CAN branch wire [w/ Vehicle Stability Control System])

    D

    NG (to main body ECU [multiplex network body ECU] CAN branch wire)

    E

    NG (to lane departure warning camera CAN branch wire [w/ Lane Departure Alert System])

    F

    NG (to No. 2 CAN junction connector CAN main wire)

    G
    A

    REPLACE NO. 1 CAN JUNCTION CONNECTOR

    C

    CONNECT CONNECTORClick here

    D

    CONNECT CONNECTORClick here

    E

    CONNECT CONNECTORClick here

    F

    CONNECT CONNECTORClick here

    G

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

    B

  33. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 1 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  34. CHECK FOR SHORT IN CAN BUS WIRES (SKID CONTROL ECU)

    1. C234968C24

      *A

      w/ Vehicle Stability Control System

      *B

      w/o Vehicle Stability Control System

      *a

      Front view of wire harness connector

      (to Brake Actuator Assembly [Skid Control ECU])

      Disconnect the brake actuator assembly (skid control ECU) connector.

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

      Standard Resistance

      Table 5. w/ Vehicle Stability Control System

      Tester Connection

      Condition

      Specified Condition

      A64-25 (CANH) - A64-14 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω
      Table 6. w/o Vehicle Stability Control System

      Tester Connection

      Condition

      Specified Condition

      A63-25 (CANH) - A63-14 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

    w/ Vehicle Stability Control System:Click here

    w/o Vehicle Stability Control System:Click here

    NG

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

  35. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 1 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  36. CHECK FOR SHORT IN CAN BUS WIRES (POWER STEERING ECU ASSEMBLY)

    1. C268317C01

      *a

      Rear view of wire harness connector

      (to Power Steering ECU Assembly)

      Disconnect the power steering ECU assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      h1-4 (CANH) - h1-8 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE POWER STEERING ECU ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO POWER STEERING ECU ASSEMBLY (CANH, CANL)

  37. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 1 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  38. CHECK FOR SHORT IN CAN BUS WIRES (STEERING ANGLE SENSOR)

    1. C277459C01

      *a

      Front view of wire harness connector

      (to Spiral with Sensor Cable Sub-assembly [Steering Angle Sensor])

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

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G12-3 (CANH) - G12-2 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY (STEERING ANGLE SENSOR)

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO STEERING ANGLE SENSOR (CANH, CANL)

  39. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 1 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  40. CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU)

    1. C212975C04

      *a

      Rear view of wire harness connector

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

      Disconnect the 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

      Condition

      Specified Condition

      G78-14 (CANH) - G78-13 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    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)

  41. CONNECT CONNECTOR

    1. Reconnect all wire harness No. 1 CAN junction connectors.

    Result

    Proceed to

    NEXT
    NEXT

  42. CHECK FOR SHORT IN CAN BUS WIRES (LANE DEPARTURE WARNING CAMERA)

    1. C268302C01

      *a

      Front view of wire harness connector

      (to Lane Departure Warning Camera)

      Disconnect the lane departure warning camera connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      Q13-6 (CA1P) - Q13-12 (CA1N)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE LANE DEPARTURE WARNING CAMERA

    Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO LANE DEPARTURE WARNING CAMERA (CA1P, CA1N)