WIPER AND WASHER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use the following procedure to troubleshoot the wiper and washer system.

  • *: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK


    NEXT

  3. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage with the ignition switch off.

      Standard Voltage
      11 to 14 V

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


      NEXT

  4. CHECK LIN COMMUNICATION SYSTEM*


    1. Check for LIN communication DTC output Click here.

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

      B

      GO TO LIN COMMUNICATION SYSTEM Click here

      A

  5. PROBLEM SYMPTOMS TABLE

    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 7
    A

  6. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Terminals of ECU Click here

    2. Fail-safe chart Click here


      NEXT

  7. ADJUST, REPAIR OR REPLACE


    NEXT

  8. CONFIRMATION TEST


    NEXT
    END