AIR CONDITIONING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

Use the following procedures to troubleshoot the air conditioning system.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. INSPECT BATTERY VOLTAGE


    1. Inspect the battery voltage.

      Standard voltage
      20 to 28 V

      If the voltage is below 20 V, recharge or replace the battery before proceeding.


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  3. PROBLEM SYMPTOMS TABLE


    1. Refer to the 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

      B

      Go to step 5
      A

  4. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Terminals of ECU Click here.

    2. On-Vehicle Inspection

    3. Inspection


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  5. ADJUST, REPAIR OR REPLACE


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    END