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Home >> Lexus >> 2015 >> GX 460 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System / Washer System (W/O Rain Sensor) (Diagnostics & Circuit Tests) >> WIPER AND WASHER SYSTEM (W/O Rain Sensor) >> Circuit Tests >> Washer Signal Circuit [08/2013 - ] >> Procedure

Washer Signal Circuit [08/2013 - ]: Procedure

  1. CHECK OPERATION 
    1. Check the operation of the front wiper and washer system. Refer to SYSTEM DESCRIPTION [08/2013 - ] .

      OK

      Front wiper and washer system operates normally.

    NG → See step   4 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER SWITCH ASSEMBLY - HEADLIGHT CLEANER CONTROL RELAY) 
    1. Disconnect the headlight cleaner control relay connector.
      GTY470689Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      A32-5 (FRWA) - Body ground Engine switch on (IG), windshield wiper switch assembly (windshield washer switch) on Below 1 V
      A32-5 (FRWA) - Body ground Engine switch on (IG), windshield wiper switch assembly (windshield washer switch) off 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Headlight Cleaner Control Relay)

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   3 

  3. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [08/2013 - ] 
  4. GO TO PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [08/2013 - ]