WIPER AND WASHER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

Use these procedures to troubleshoot the wiper and washer system.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. INSPECT 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 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

      ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE
      A

  4. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Terminals of ECU Click here.

    2. On-vehicle inspection


      1. Front wiper motor and bracket assembly Click here.

      2. Windshield washer motor and pump assembly Click here.

      3. Washer nozzle Click here.

      4. No. 1 integration relay Click here.

    3. Inspection


      1. Front wiper motor and bracket assembly Click here.

      2. Windshield wiper switch assembly Click here.


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  5. REPAIR OR REPLACE


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  6. CONFIRMATION TEST


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    END