WIPER AND WASHER SYSTEM(w/ Rain Sensor) Washer Signal Circuit

DESCRIPTION

The headlight cleaner control relay receives the windshield washer operation signal.

WIRING DIAGRAM

A01QT0SE01

PROCEDURE


  1. CHECK OPERATION


    1. Check the operation of the front wiper and washer system.

      Result
      Proceed to
      Front wiper and washer system operates normally
      Front wiper and washer system does not operate

    Front wiper and washer system does not operate

    GO TO PROBLEM SYMPTOMS TABLE Click here

    Front wiper and washer system operates normally

  2. CHECK HEADLIGHT CLEANER CONTROL RELAY


    1. A01QUBCC01
      *A for RH Side Type
      *B for LH Side Type
      *a

      Front view of wire harness connector

      (to Windshield Washer Motor and Pump Assembly)

      Disconnect the windshield wiper switch assembly connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      for RH Side Type
      Tester Connection Switch Condition Specified Condition
      G10-7 (WF) - Body ground Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      for LH Side Type
      Tester Connection Switch Condition Specified Condition
      G61-4 (WF) - Body ground Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER CONTROL RELAY - WINDSHIELD WIPER SWITCH ASSEMBLY)


    1. Disconnect the A48 headlight cleaner control relay connector.

    2. Disconnect the G10*1 or G61*2 windshield wiper switch assembly connector.


      • *1: for RH Side Type

      • *2: for LH Side Type

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for RH Side Type
      Tester Connection Condition Specified Condition
      A48-5 (FRWA) - G10-7 (WF) Always Below 1 Ω
      A48-5 (FRWA) - Body ground Always 10 kΩ or higher
      for LH Side Type
      Tester Connection Condition Specified Condition
      A48-5 (FRWA) - G61-4 (WF) Always Below 1 Ω
      A48-5 (FRWA) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADLIGHT CLEANER CONTROL RELAY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR