CLIMATE CONTROL SEAT SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use this procedure to troubleshoot the seat heater 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 to the next step.

    2. Check the fuses and relays.

    3. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Using the GTS, check for CAN communication system DTCs.

      for LHD: Click here

      for RHD: Click here

      Result
      Result Proceed to
      CAN DTCs are not output A
      CAN DTCs are output (for LHD) B
      CAN DTCs are output (for RHD) C

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  4. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*


    1. Using the GTS, check for LIN communication system DTCs.

      Click here

      Result
      Result Proceed to
      LIN DTCs are not output A
      LIN DTCs are output B

    B

    GO TO LIN COMMUNICATION SYSTEM Click here

    A

  5. CHECK FOR DTC (AIR CONDITIONING SYSTEM)*


    1. Clear the DTCs.

      Click here

    2. Check for DTCs.

      Click here

      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO AIR CONDITIONING SYSTEM Click here

    A

  6. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table.

      Click here

      Result
      Result Proceed to
      Fault is not listed in Problem Symptoms Table A
      Fault is listed in Problem Symptoms Table B

    A
    B

  7. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Operation Check

      Click here

    2. Terminals of ECU

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  8. REPAIR OR REPLACE

    Result
    Proceed to
    NEXT

    NEXT

    END