LIN COMMUNICATION SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use these procedures to troubleshoot the LIN communication system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage.

      Standard voltage
      11 to 14 V

      If the voltage is below 11 V, recharge or replace the battery before proceeding.

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Using the GTS, check the CAN communication function to ensure that there are no malfunctions in the communication system.

      for LHD with Central Gateway ECU:

      Click here

      for RHD with Central Gateway ECU:

      Click here

      for LHD without Central Gateway ECU:

      Click here

      for RHD without Central Gateway ECU:

      Click here

      Result
      Proceed to
      No DTCs output
      DTCs output

    DTCs output

    GO TO CAN COMMUNICATION SYSTEM for LHD with Central Gateway ECU: GO TO CAN COMMUNICATION SYSTEM Click here
    GO TO CAN COMMUNICATION SYSTEM for RHD with Central Gateway ECU: GO TO CAN COMMUNICATION SYSTEM Click here
    GO TO CAN COMMUNICATION SYSTEM for LHD without Central Gateway ECU: GO TO CAN COMMUNICATION SYSTEM Click here
    GO TO CAN COMMUNICATION SYSTEM for RHD without Central Gateway ECU: GO TO CAN COMMUNICATION SYSTEM Click here

    No DTCs output

  4. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*


    1. Using the GTS, check the LIN communication function to ensure that there are no malfunctions in the communication system.

      Click here

      Result
      Result Proceed to
      No DTCs output A
      DTC B2785, B2786 or B2789 is output B
      DTC B14B2 is output C

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    C

    GO TO AIR CONDITIONING SYSTEM Click here

    A

  5. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Terminals of ECU

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. ADJUST, REPAIR OR REPLACE

    Result
    Proceed to
    NEXT

    NEXT

    END