WIPER AND WASHER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


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

  • *: Use the GTS.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK


    NEXT

  3. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage with the engine 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 COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Use the GTS to check if the CAN communication system is functioning normally.


      Result
      Result Proceed to
      CAN DTC is not output (w/ Rain Sensor) A
      CAN DTC is not output (w/o Rain Sensor) B
      CAN DTC is output (for LHD) C
      CAN DTC is output (for RHD) D

      B

      GO TO STEP 6
      C

      GO TO CAN COMMUNICATION SYSTEM Click here

      D

      GO TO CAN COMMUNICATION SYSTEM Click here

      A

  5. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM


    1. Check if the LIN communication system is functioning normally Click here.

      Result
      Result Proceed to
      LIN communication system is functioning normally A
      LIN communication system is not functioning normally B

      B

      GO TO LIN COMMUNICATION SYSTEM Click here

      A

  6. 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

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

  7. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Terminals of ECU Click here.

    2. Fail-safe chart Click here.


      NEXT

  8. ADJUST, REPAIR OR REPLACE


    NEXT

  9. CONFIRMATION TEST


    NEXT
    END