CAN COMMUNICATION SYSTEM(for LHD) 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

  • Network gateway ECU*1

  • Brake actuator assembly (skid control ECU)

  • Air conditioning amplifier assembly

  • Power steering ECU assembly

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

  • Main body ECU (multiplex network body ECU)

  • Combination meter assembly

  • Certification ECU (smart key ECU assembly)

  • Airbag ECU assembly

  • Parking brake ECU assembly

  • Radio receiver assembly

  • Stereo component equalizer assembly*2

  • Engine stop and start ECU*3

  • 4WD ECU assembly*4

  • No. 1 CAN junction connector

  • No. 2 CAN junction connector

  • DLC3 CAN branch wire or connector
*1: w/ Network Gateway ECU
*2: w/ ASC System
*3: w/ Stop and Start System
*4: for AWD

WIRING DIAGRAM

B0058ROE03
B00590GE02
B00586PE04

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 engine 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 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

  • Before replacing the certification ECU (smart key ECU assembly), refer to the service bulletin.

  • 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.

    Click here

  • When replacing the combination meter assembly, make sure to replace it with a new one.

  • When replacing the telematics transceiver, make sure to replace it with a new one.

  • Before replacing the main body ECU (multiplex network body ECU) is replaced, refer to the service bulletin.

  • As the door control battery is installed between the vehicle battery and main body ECU (multiplex network body ECU), first perform the inspections in On-Vehicle Inspection to confirm that there are no malfunctions in the power source circuit for the main body ECU (multiplex network body ECU) before performing this troubleshooting procedure.*

    *: w/ Door Control Battery

    Click here

Tech Tips


  • Operating the engine 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. B005A01C05
      *a Front view of DLC3

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

    2. Disconnect the No. 2 CAN junction connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I7-6 (CANH) - I7-14 (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 the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

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


    1. B005A01C05
      *a Front view of DLC3

      Disconnect the No. 1 CAN junction connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I7-6 (CANH) - I7-14 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    NG

    CONNECT CONNECTOR Click here

    OK

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


    1. Disconnect the No. 1 CAN junction connector.

      B0057HKC51
      *a

      Front view of wire harness connector

      (to No. 1 CAN Junction Connector)

      		 *b to Engine Stop and Start ECU (w/ Stop and Start System)
      *c to Stereo Component Equalizer Assembly (w/ ASC System) *d to 4WD ECU Assembly (for AWD)
      *e to Network Gateway ECU (w/ Network Gateway ECU) *f to Certification ECU (Smart Key ECU Assembly)
      *g to Combination Meter Assembly *h to Airbag ECU Assembly

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

      Standard Resistance
      Tester Connection Condition Specified Condition Connected to
      I93-1 (CANH) - I93-11 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Engine Stop and Start ECU*1
      I93-2 (CANH) - I93-12 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Stereo Component Equalizer Assembly*2
      I93-3 (CANH) - I93-13 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher 4WD ECU Assembly*3
      I93-4 (CANH) - I93-14 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Network Gateway ECU*4
      I93-6 (CANH) - I93-16 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Certification ECU (Smart Key ECU Assembly)
      I93-7 (CANH) - I93-17 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Combination Meter Assembly
      I93-10 (CANH) - I93-20 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Airbag ECU Assembly
      *1: w/ Stop and Start System
      *2: w/ ASC System
      *3: for AWD
      *4: w/ Network Gateway ECU
      Result
      Result Proceed to
      OK A
      NG (to engine stop and start ECU CAN branch wire) (w/ Stop and Start System) B
      NG (to stereo component equalizer assembly CAN branch wire) (w/ ASC System) C
      NG (to 4WD ECU assembly CAN branch wire) (for AWD) D
      NG (to network gateway ECU CAN branch wire) (w/ Network Gateway ECU) E
      NG (to certification ECU [smart key ECU assembly] CAN branch wire) F
      NG (to combination meter assembly CAN main wire) G
      NG (to airbag ECU assembly CAN branch wire) H

    A

    REPLACE NO. 1 CAN JUNCTION CONNECTOR

    C

    CONNECT CONNECTOR Click here

    D

    CONNECT CONNECTOR Click here

    E

    CONNECT CONNECTOR Click here

    F

    CONNECT CONNECTOR Click here

    G

    CONNECT CONNECTOR Click here

    H

    CONNECT CONNECTOR Click here

    B

  5. CONNECT CONNECTOR


    1. Reconnect the No. 1 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK FOR SHORT IN CAN BUS WIRES (ENGINE STOP AND START ECU BRANCH WIRE)


    1. B0058ZFC05
      *a

      Front 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
      I57-15 (CANH) - I57-16 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ENGINE STOP AND START ECU Click here

    NG

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

  7. CONNECT CONNECTOR


    1. Reconnect the No. 1 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  8. CHECK FOR SHORT IN CAN BUS WIRES (STEREO COMPONENT EQUALIZER ASSEMBLY BRANCH WIRE)


    1. B005943C06
      *a

      Front view of wire harness connector

      (to Stereo Component Equalizer Assembly)

      Disconnect the stereo component equalizer assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I117-4 (CANH) - I117-12 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO STEREO COMPONENT EQUALIZER ASSEMBLY (CANH, CANL)

  9. CONNECT CONNECTOR


    1. Reconnect the No. 1 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  10. CHECK FOR SHORT IN CAN BUS WIRES (4WD ECU ASSEMBLY BRANCH WIRE)


    1. B005BGRC05
      *a

      Front 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 Value
      I55-6 (CANH) - I55-5 (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)

  11. CONNECT CONNECTOR


    1. Reconnect the No. 1 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  12. CHECK FOR SHORT IN CAN BUS WIRES (NETWORK GATEWAY ECU BRANCH WIRE)


    1. B0058PNC07
      *a

      Front view of wire harness connector

      (to Network Gateway ECU)

      Disconnect the network gateway ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I67-16 (CA1H) - I67-15 (CA1L) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NETWORK GATEWAY ECU Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO NETWORK GATEWAY ECU (CA1H, CA1L)

  13. CONNECT CONNECTOR


    1. Reconnect the No. 1 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  14. CHECK FOR SHORT IN CAN BUS WIRES (CERTIFICATION ECU BRANCH WIRE)


    1. B005921C06
      *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
      I53-7 (CANH) - I53-8 (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)

  15. CONNECT CONNECTOR


    1. Reconnect the No. 1 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  16. CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER ASSEMBLY MAIN WIRE)


    1. B00598JC05
      *a

      Front 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
      I10-29 (CANH) - I10-30 (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)

  17. CONNECT CONNECTOR


    1. Reconnect the No. 1 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  18. CHECK FOR SHORT IN CAN BUS WIRES (AIRBAG ECU ASSEMBLY BRANCH WIRE)


    1. B005AKUC05
      *a

      Front view of wire harness connector

      (to Airbag ECU Assembly)

      Disconnect the airbag ECU assembly connector.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I58-13 (CANH) - I58-22 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE AIRBAG ECU ASSEMBLY Click here

    NG

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

  19. CONNECT CONNECTOR


    1. Reconnect the No. 1 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

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


    1. Disconnect the No. 2 CAN junction connector.

      B0057HKC29
      *a

      Front view of wire harness connector

      (to No. 2 CAN Junction Connector)

      		 *b to Air Conditioning Amplifier Assembly
      *c to Power Steering ECU Assembly *d to Radio Receiver Assembly
      *e to Main Body ECU (Multiplex Network Body ECU) *f to No. 1 CAN Junction Connector
      *g to ECM *h to Brake Actuator Assembly (Skid Control ECU)
      *i to Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor) *j to Parking Brake ECU Assembly

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

      Standard Resistance
      Tester Connection Condition Specified Condition Connected to
      I94-1 (CANH) - I94-11 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Air Conditioning Amplifier Assembly
      I94-2 (CANH) - I94-12 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Power Steering ECU Assembly
      I94-3 (CANH) - I94-13 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Radio Receiver Assembly
      I94-4 (CANH) - I94-14 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Main Body ECU (Multiplex Network Body ECU)
      I94-6 (CANH) - I94-16 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 1 CAN Junction Connector
      I94-7 (CANH) - I94-17 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω ECM
      I94-8 (CANH) - I94-18 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Brake Actuator Assembly (Skid Control ECU)
      I94-9 (CANH) - I94-19 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)
      I94-10 (CANH) - I94-20 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Parking Brake ECU Assembly
      Result
      Result Proceed to
      OK A
      NG (to air conditioning amplifier assembly CAN branch wire) B
      NG (to power steering ECU assembly CAN branch wire) (for Power Tilt and Power Telescopic Steering Column) C
      NG (to power steering ECU assembly CAN branch wire) (for Manual Tilt and Manual Telescopic Steering Column) D
      NG (to radio receiver assembly CAN branch wire) (except 8 Speakers) E
      NG (to radio receiver assembly CAN branch wire) (for 8 Speakers) F
      NG (to main body ECU [multiplex network body ECU] CAN branch wire) G
      NG (to ECM CAN main wire) H
      NG (to brake actuator assembly [skid Control ECU] CAN branch wire) I
      NG (to spiral with sensor cable sub-assembly [steering angle sensor] CAN branch wire) J
      NG (to parking brake ECU assembly CAN branch wire) K
      NG (to No. 1 CAN junction connector CAN main wire) L

    A

    REPLACE NO. 2 CAN JUNCTION CONNECTOR

    C

    CONNECT CONNECTOR Click here

    D

    CONNECT CONNECTOR Click here

    E

    CONNECT CONNECTOR Click here

    F

    CONNECT CONNECTOR Click here

    G

    CONNECT CONNECTOR Click here

    H

    CONNECT CONNECTOR Click here

    I

    CONNECT CONNECTOR Click here

    J

    CONNECT CONNECTOR Click here

    K

    CONNECT CONNECTOR Click here

    L

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

    B

  21. CONNECT CONNECTOR


    1. Reconnect the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  22. CHECK FOR SHORT IN CAN BUS WIRES (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH WIRE)


    1. B005A9VC05
      *a

      Front 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
      Tester Connection Condition Specified Condition
      I50-11 (CANH) - I50-12 (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)

  23. CONNECT CONNECTOR


    1. Reconnect the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  24. CHECK FOR SHORT IN CAN BUS WIRES (POWER STEERING ECU ASSEMBLY BRANCH WIRE)


    1. B0057FHC29
      *a

      Front 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
      n2-7 (CANH) - n2-8 (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)

  25. CONNECT CONNECTOR


    1. Reconnect the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  26. CHECK FOR SHORT IN CAN BUS WIRES (POWER STEERING ECU ASSEMBLY BRANCH WIRE)


    1. B00595OC01
      *a

      Front 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
      n3-4 (CANH) - n3-8 (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)

  27. CONNECT CONNECTOR


    1. Reconnect the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  28. CHECK FOR SHORT IN CAN BUS WIRES (RADIO RECEIVER ASSEMBLY BRANCH WIRE)


    1. B0057AGC06
      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)

      Disconnect the radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I38-1 (CANH) - I38-2 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

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

  29. CONNECT CONNECTOR


    1. Reconnect the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  30. CHECK FOR SHORT IN CAN BUS WIRES (RADIO RECEIVER ASSEMBLY BRANCH WIRE)


    1. B0057OGC01
      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)

      Disconnect the radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I121-9 (CANH) - I121-10 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

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

  31. CONNECT CONNECTOR


    1. Reconnect the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  32. CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU BRANCH WIRE)


    1. B005BB2C02
      *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
      I48-14 (CANH) - I48-13 (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)

  33. CONNECT CONNECTOR


    1. Reconnect the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

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


    1. B0057GIC08
      *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
      Tester Connection Condition Specified Condition
      A35-13 (CANH) - A35-26 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM for 8AR-FTS: REPLACE ECM Click here
    REPLACE ECM for 3ZR-FAE: REPLACE ECM Click here

    NG

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

  35. CONNECT CONNECTOR


    1. Reconnect the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  36. CHECK FOR SHORT IN CAN BUS WIRES (SKID CONTROL ECU BRANCH WIRE)


    1. B005927C06
      *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
      Tester Connection Condition Specified Condition
      A36-22 (CANH) - A36-10 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    NG

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

  37. CONNECT CONNECTOR


    1. Reconnect the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

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


    1. B005755C05
      *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
      I6-3 (CANH) - I6-2 (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 SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY (CANH, CANL)

  39. CONNECT CONNECTOR


    1. Reconnect the No. 2 CAN junction connector.

      Result
      Proceed to
      NEXT

    NEXT

  40. CHECK FOR SHORT IN CAN BUS WIRES (PARKING BRAKE ECU ASSEMBLY BRANCH WIRE)


    1. B0059LQC04
      *a

      Front view of wire harness connector

      (to Parking Brake ECU Assembly)

      Disconnect the parking brake ECU assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Value
      Q24-11 (CANH) - Q24-1 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE PARKING BRAKE ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO PARKING BRAKE ECU ASSEMBLY (CANH, CANL)