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Home >> Lexus >> 2021 >> GX 460 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System / Washer System (Without Rain Sensor) (Diagnostics & Circuit Tests) >> WIPER AND WASHER SYSTEM (w/o Rain Sensor) >> How To Proceed With Troubleshooting [08/2015 - ] >> Procedure

How To Proceed With Troubleshooting [08/2015 - ]: Procedure

  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  2

  2. INSPECT BATTERY VOLTAGE 
    1. Measure the battery voltage.

      Standard Voltage

      11 to 14 V

      HINT: 

      • A simple method to determine whether the battery is discharged is to operate the horn.
      • If the voltage is below 11 V, recharge or replace the battery before proceeding.
    2. Check for blown fuses, open or shorted wire harnesses, improperly connected connectors and other problems in areas that can be visually inspected.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. PROBLEM SYMPTOMS TABLE 
    1. Refer to the Problem Symptoms Table.

      Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2019] , or refer to PROBLEM SYMPTOMS TABLE [08/2019 - ] 

      Result

      Result Proceed to
      Fault is not listed in problem symptoms table A
      Fault is listed in problem symptoms table B

    Result: 

    ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE 

    Result: 

    See step  4

  4. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Terminals of ECU.

      Refer to TERMINALS OF ECU [08/2015 - 08/2019] , or refer to TERMINALS OF ECU [08/2019 - ] 

    2. Data List / Active Test.

      Refer to DATA LIST / ACTIVE TEST [08/2015 - 08/2019] , or refer to DATA LIST / ACTIVE TEST [08/2019 - ] 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  5

  5. ADJUST, REPAIR OR REPLACE 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  6

  6. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END