WIPER AND WASHER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


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


  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS

    Tech Tips


    • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.

    • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

    • The following 5 items are important points for problem analysis:

      What Vehicle model, system name
      When Date, time, occurrence frequency
      Where Road conditions
      Under what conditions? Driving conditions, weather conditions
      How did it happen? Problem symptoms
    Result
    Proceed to
    NEXT

    NEXT

  3. READ OUT AND SAVE OPERATION HISTORY

    Note


    • If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has been read out and saved, the operation history information could be lost.

    • The function "Read operation history" uses the current system time setting inside the GTS and the time counter inside the controlling ECU to calculate the timings shown in the operation history. For this reason, before reading out the operation history, first make sure that the GTS system clock is accurately set to the current time.


    1. Read out and save operation history using the GTS.

      Click here


      Body Electrical > Wiper > Utility
      Tester Display
      Operation History
      Result
      Proceed to
      NEXT

    NEXT

  4. PRE-CHECK


    1. Measure the battery voltage.

      Standard Voltage
      11 to 14 V

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

    2. Check the fuses and relays.

    3. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Using the GTS, check for CAN communication system DTCs.

      Click here

      Result
      Result Proceed to
      CAN DTCs are not output A
      CAN DTCs are output B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  6. CHECK FOR DTC*


    1. Check for DTCs.


      Body Electrical > Wiper > Trouble Codes
      Body Electrical > Main Body > Trouble Codes
      Body Electrical > Rain and/or Humidity Sensor > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  7. 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

    GO TO PROBLEM SYMPTOMS TABLE Click here

    A

  8. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Operation Check.

      Click here

    2. Customize Parameters

      Click here

    3. Terminals of ECU

      Click here

    4. Fail-safe Chart

      Click here

    5. Data List / Active Test

      Click here

    6. Inspection

    7. On-vehicle inspection

      Result
      Proceed to
      NEXT

    NEXT

  9. ADJUST, REPAIR OR REPLACE

    Result
    Proceed to
    NEXT

    NEXT

  10. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END