WIPER AND WASHER SYSTEM Wiper ECU Power Source Circuit

DESCRIPTION

This circuit provides power to the windshield wiper switch assembly.

WIRING DIAGRAM

A01NGO0E04
A01NGO0E03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - BATTERY AND BODY GROUND)


    1. A01NF44E01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Windshield Wiper Switch Assembly)

      for LHD, RHD Light Control Switch LH Side Type:


      1. Disconnect the F42 windshield wiper switch assembly connector.

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

        Standard Voltage
        Tester Connection Condition Specified Condition
        F42-3 (WIG) - Body ground Power switch on (IG) 11 to 14 V
        F42-17 (+B) - Body ground Power switch on (IG) 11 to 14 V

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        F42-1 (EW) - Body ground Always Below 1 Ω
    2. A01NF44E02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Windshield Wiper Switch Assembly)

      for RHD Light Control Switch RH Side Type:


      1. Disconnect the F81 windshield wiper switch assembly connector.

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

        Standard Voltage
        Tester Connection Condition Specified Condition
        F81-7 (WIG) - Body ground Power switch on (IG) 11 to 14 V
        F81-11 (+B) - Body ground Power switch on (IG) 11 to 14 V

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        F81-9 (EW) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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