AIR SUSPENSION SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

*: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS


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  3. INSPECT BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

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


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  4. CHECK AND CLEAR DTC*


    1. Check if any DTCs are output Click here.

      Tech Tips

      The suspension control ECU of this system is connected to CAN communication system. Therefore, before starting troubleshooting, be sure to check that there is no trouble in CAN communication system (for LHD: Click here, for RHD: Click here).

      Result
      Result Proceed to
      CAN DTC not output A
      CAN DTC output B

      B

      GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)
      A

  5. CHECK AND CLEAR DTC*


    1. Check for DTCs Click here.


      NEXT

  6. PROBLEM SYMPTOM CONFIRMATION

    Result
    Result Proceed to
    Symptom does not occur A
    Symptom occurs B

    B

    Go to step 8
    A

  7. SYMPTOM SIMULATION


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  8. CHECK DTC*


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC not output A
      DTC output B

      B

      Go to step 10
      A

  9. PROBLEM SYMPTOMS TABLE


    1. Refer to the Problem Symptoms Table Click here.


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  10. DTC CHART


    1. Refer to the Diagnostic Trouble Code Chart Click here.


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  11. CIRCUIT INSPECTION*


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  12. IDENTIFICATION OF PROBLEM


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  13. REPAIR OR REPLACE


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  14. CONFIRMATION TEST


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    END