CLIMATE CONTROL SEAT SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use this procedure to troubleshoot the climate control seat system.

  • The GTS should be used in step 4.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK


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  3. INSPECT AUXILIARY BATTERY VOLTAGE

    Standard voltage
    11 to 14V

    1. If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.


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  4. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM


    1. Use the GTS to check if the LIN communication system is functioning normally Click here.

      Result
      Result Proceed to
      LIN DTC is not output A
      LIN DTC is output B

      B
      A
  5. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table Click here.

      Result
      Result Proceed to
      Fault not listed in problem symptoms table A
      Fault listed in problem symptoms table B

      B
      A
  6. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Terminals of ECU Click here.


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  7. ADJUST, REPAIR OR REPLACE


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