CAN COMMUNICATION SYSTEM 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 16 (BAT) and 14 (CANL) of the DLC3 is below 53 kΩ.

  • Short between CAN bus lines

  • ECM

  • Brake actuator assembly (skid control ECU)

  • Parking brake with bracket actuator assembly (parking brake ECU)

  • Certification ECU (smart key ECU assembly)*1

  • Power steering ECU assembly

  • Air conditioning amplifier assembly*2

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

  • Yaw rate sensor

  • Main body ECU (instrument panel junction block assembly)

  • Radio and display receiver assembly*3

  • Headlight swivel ECU assembly*4

  • Headlight leveling ECU assembly*5

  • Power management control ECU*1

  • Center airbag sensor assembly

  • Pre-crash safety city sensor*6

  • Engine stop and start ECU

  • Combination meter assembly

  • No. 1 junction connector

  • No. 2 junction connector

  • No. 3 junction connector

WIRING DIAGRAM

A004OTAE02
A004NU5E02
A004RCSE02
w/ Entry and Start System
*a Power Management Control ECU
*b Yaw Rate Sensor
*c Combination Meter Assembly
*d No. 3 Junction Connector
A004TBFE02
A004QJVE02
A004N3DE02

CAUTION / NOTICE / HINT

Note


  • For vehicles with an entry and start system:

    Before replacing the certification ECU (smart key ECU assembly), refer to the entry and start system (for Entry Function) Click here.

  • As the door control battery is installed between the vehicle battery and main body ECU (instrument panel junction block assembly), 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 (instrument panel junction block assembly) before performing this troubleshooting procedure Click here.

Tech Tips

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

PROCEDURE


  1. PRECAUTION

    Note

    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 here.


    NEXT

  2. 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 SRS system.

      Note

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


    NEXT

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


    1. A004SX7E02
      Text in Illustration
      *a Front view of DLC3

      Disconnect the D151 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
      D8-6 (CANH) - D8-14 (CANL) Ignition switch off 200 Ω or higher

    NG

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

    OK

  4. CONNECT CONNECTOR


    1. Reconnect the D151 No. 1 junction connector.


    NEXT

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


    1. A004SX7E02
      Text in Illustration
      *a Front view of DLC3

      Disconnect the D164 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
      D8-6 (CANH) - D8-14 (CANL) Ignition switch off 108 to 132 Ω

    NG

    CONNECT CONNECTOR Click here

    OK

  6. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

    Note

    For vehicles without a radio and display type, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Air Conditioning Amplifier Assembly)".


    1. A004SGVE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)

      Disconnect the 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
      D155-1 (CANH) - D155-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  7. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

    Note

    For vehicles with an entry and start system, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Center Airbag Sensor Assembly)".


    1. A004O6EE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)

      Disconnect the 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
      D156-1 (CANH) - D156-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  8. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)


    1. A004O75E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)

      Disconnect the 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
      D157-1 (CANH) - D157-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  9. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - CERTIFICATION ECU)

    Note

    For vehicles without an entry and start system, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Engine Stop and Start ECU)".


    1. A004QT3E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)

      Disconnect the 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
      D158-1 (CANH) - D158-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  10. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)


    1. A004T9DE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)

      Disconnect the 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
      D160-1 (CANH) - D160-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  11. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - ENGINE STOP AND START ECU)


    1. A004QW6E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)

      Disconnect the 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
      D159-1 (CANH) - D159-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  12. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - YAW RATE SENSOR)


    1. A004MV8E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)

      Disconnect the 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
      D162-1 (CANH) - D162-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  13. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - HEADLIGHT ECU)

    Note

    For vehicles with an entry and start system or without an entry and start system and halogen headlight, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Combination Meter Assembly)".


    1. A004T4WE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)

      Disconnect the 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
      D163-1 (CANH) - D163-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  14. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)


    1. A004Q1SE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)

      Disconnect the 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
      D161-1 (CANH) - D161-2 (CANL) Ignition switch off 108 to 132 Ω

    OK

    REPLACE NO. 3 JUNCTION CONNECTOR

    NG

    CONNECT CONNECTOR Click here

  15. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

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


    1. A004TW2E02
      Text in Illustration
      *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 Switch Condition Specified Condition
      D124-9 (CANH) - D124-10 (CANL) Ignition switch off 54 to 69 Ω

    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)

  17. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

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


    1. A004NV1E02
      Text in Illustration
      *A for Automatic Air conditioning System
      *B for Manual Air Conditioning System and w/o 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
      for Automatic Air conditioning System
      Tester Connection Switch Condition Specified Condition
      D47-11 (CANH) - D47-12 (CANL) Ignition switch off 54 to 69 Ω
      for Manual Air Conditioning System and w/o Air Conditioning System
      Tester Connection Switch Condition Specified Condition
      D101-11 (CANH) - D101-12 (CANL) Ignition switch off 54 to 69 Ω

    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    NG

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

  19. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  20. CHECK FOR SHORT IN CAN BUS WIRES (CENTER AIRBAG SENSOR ASSEMBLY)


    1. A004N50E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Center Airbag Sensor Assembly)

      Disconnect the 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
      D10-13 (CANH) - D10-22 (CANL) Ignition switch off 54 to 69 Ω

    OK

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here

    NG

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

  21. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  22. CHECK FOR SHORT IN CAN BUS WIRES (CERTIFICATION ECU)


    1. A004OTTE02
      Text in Illustration
      *a

      Rear 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 Switch Condition Specified Condition
      D54-9 (CANH) - D54-10 (CANL) Ignition switch off 54 to 69 Ω

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

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

  23. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

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


    1. A004OCBE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the 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
      D111-14 (CA1H) - D111-13 (CA1L) Ignition switch off 54 to 69 Ω

    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    NG

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

  25. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

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


    1. A004SAAE02
      Text in Illustration
      *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 Switch Condition Specified Condition
      D139-15 (CANH) - D139- 16 (CANL) Ignition switch off 54 to 69 Ω

    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)

  27. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  28. CHECK FOR SHORT IN CAN BUS WIRES (YAW RATE SENSOR)


    1. A004RQ3E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Yaw Rate Sensor)

      Disconnect the yaw rate sensor connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D69-2 (CANH) - D69-3 (CANL) Ignition switch off 54 to 69 Ω

    OK

    REPLACE YAW RATE SENSOR Click here

    NG

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

  29. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  30. CHECK FOR SHORT IN CAN BUS WIRES (HEADLIGHT ECU)


    1. Disconnect the headlight swivel ECU assembly*1 or headlight leveling ECU assembly*2 connector.


      • *1: w/ Adaptive Front-lighting System

      • *2: w/o Adaptive Front-lighting System

      A004SWKE02
      Text in Illustration
      *A w/ Adaptive Front-lighting System *B w/o Adaptive Front-lighting System
      *a

      Rear view of wire harness connector

      (to Headlight Swivel ECU Assembly)

      		 *b

      Front view of wire harness connector

      (to Headlight Leveling ECU Assembly)

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

      Standard Resistance
      w/ Adaptive Front-lighting System
      Tester Connection Switch Condition Specified Condition
      A38-12 (CANH) - A38-13 (CANL) Ignition switch off 54 to 69 Ω
      w/o Adaptive Front-lighting System
      Tester Connection Switch Condition Specified Condition
      A82-6 (CANH) - A82-7 (CANL) Ignition switch off 54 to 69 Ω
      Result
      Result Proceed to
      OK (w/ Adaptive Front-lighting System) A
      OK (for LHD, w/o Adaptive Front-lighting System) B
      OK (for RHD, w/o Adaptive Front-lighting System) C
      NG D

    A

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    B

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    C

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    D

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

  31. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

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


    1. A004OW3E02
      Text in Illustration
      *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 Switch Condition Specified Condition
      D66-32 (CANH) - D66-31 (CANL) Ignition switch off 108 to 132 Ω

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

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

  33. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  34. CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)


    1. A004MYOE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 2 Junction Connector)

      Disconnect the No. 2 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G71-1 (CANH) - G71-2 (CANL) Ignition switch off 108 to 132 Ω

    NG

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

    OK

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


    1. A004SX7E02
      Text in Illustration
      *a Front view of DLC3

      Disconnect the G72 No. 2 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D8-6 (CANH) - D8-14 (CANL) Ignition switch off 108 to 132 Ω

    NG

    CONNECT CONNECTOR Click here

    OK

  36. CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - PARKING BRAKE ECU)


    1. A004T0UE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 2 Junction Connector)

      Disconnect the No. 2 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G70-1 (CANH) - G70-2 (CANL) Ignition switch off 200 Ω or higher

    OK

    REPLACE NO. 2 JUNCTION CONNECTOR

    NG

  37. CONNECT CONNECTOR


    1. Reconnect the No. 2 junction connectors.


    NEXT

  38. CHECK FOR SHORT IN CAN BUS WIRES (PARKING BRAKE ECU)


    1. A004QQ3E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Parking Brake with Bracket Actuator Assembly [Parking Brake ECU])

      Disconnect the parking brake with bracket actuator assembly (parking brake ECU) connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      I1-11 (CANH) - I1-23 (CANL) Ignition switch off 54 to 69 Ω

    OK

    REPLACE PARKING BRAKE WITH BRACKET ACTUATOR ASSEMBLY (PARKING BRAKE ECU) Click here

    NG

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

  39. CONNECT CONNECTOR


    1. Reconnect the No. 2 junction connectors.


    NEXT

  40. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)


    1. A004MK4E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Junction Connector)

      Disconnect the 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
      D154-1 (CANH) - D154-2 (CANL) Ignition switch off 108 to 132 Ω

    NG

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

    OK

  41. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - SKID CONTROL ECU)


    1. A004S92E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Junction Connector)

      Disconnect the 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
      D148-1 (CANH) - D148-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  42. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - STEERING ANGLE SENSOR)


    1. A004OUKE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Junction Connector)

      Disconnect the 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
      D149-1 (CANH) - D149-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  43. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU)


    1. A004NNEE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Junction Connector)

      Disconnect the 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
      D150-1 (CANH) - D150-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  44. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)


    1. A004S2GE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Junction Connector)

      Disconnect the 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
      D152-1 (CANH) - D152-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  45. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - PRE-CRASH SAFETY CITY SENSOR)

    Note

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


    1. A004PHUE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Junction Connector)

      Disconnect the 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
      D153-1 (CANH) - D153-2 (CANL) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  46. CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - ECM)


    1. A004RX7E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Junction Connector)

      Disconnect the 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
      D147-1 (CANH) - D147-2 (CANL) Ignition switch off 108 to 132 Ω

    OK

    REPLACE NO. 1 JUNCTION CONNECTOR

    NG

    CONNECT CONNECTOR Click here

  47. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

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


    1. A004UA6E02
      Text in Illustration
      *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 Switch Condition Specified Condition
      A84-2 (CANH) - A84-16 (CANL) Ignition switch off 54 to 69 Ω

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) Click here

    NG

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

  49. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

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


    1. A004S0LE02
      Text in Illustration
      *a

      Rear view of wire harness connector

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

      Disconnect the spiral with sensor cable subassembly (steering angle sensor) connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D167-4 (CANH) - D167-3 (CANL) Ignition switch off 54 to 69 Ω

    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)

  51. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

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


    1. A004RO7E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Main Body ECU [Instrument Panel Junction Block Assembly])

      Disconnect the main body ECU (instrument panel junction block assembly) connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D81-15 (CANH) - D81-16 (CANL) Ignition switch off 54 to 69 Ω

    OK

    REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

    NG

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

  53. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

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


    1. A004Q9KE02
      Text in Illustration
      *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 Switch Condition Specified Condition
      D50-1 (CANH) - D50-7 (CANL) Ignition switch off 54 to 69 Ω
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE POWER STEERING ECU ASSEMBLY Click here

    B

    REPLACE POWER STEERING ECU ASSEMBLY Click here

    C

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

  55. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

  56. CHECK FOR SHORT IN CAN BUS WIRES (PRE-CRASH SAFETY CITY SENSOR)


    1. A004OD6E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Pre-crash Safety City Sensor)

      Disconnect the pre-crash safety city sensor connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      K16-5 (CA1P) - K16-11 (CA1N) Ignition switch off 54 to 69 Ω

    OK

    REPLACE PRE-CRASH SAFETY CITY SENSOR Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO PRE-CRASH SAFETY CITY SENSOR (CA1P, CA1N)

  57. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

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


    1. A004MKME02
      Text in Illustration
      *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 Switch Condition Specified Condition
      A83-26 (CANH) - A83-25 (CANL) Ignition switch off 108 to 132 Ω
      Result
      Result Proceed to
      OK (for 1WW) A
      OK (for 2WW) 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)