WIPER AND WASHER SYSTEM(w/ Rain Sensor) ECU Power Source Circuit

DESCRIPTION

This circuit provides power to the windshield wiper ECU and operates the front wiper motor.

WIRING DIAGRAM

A01X5HTE03

PROCEDURE


  1. INSPECT FUSE (ECU-IG No. 1)


    1. Remove the ECU-IG No. 1 fuse from the main body ECU.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      ECU-IG No. 1 fuse Always Below 1 Ω

    NG

    REPLACE FUSE

    OK

  2. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER ECU - BATTERY AND BODY GROUND)


    1. A01X8LHE01
      *1 Front view of wire harness connector: (to Windshield Wiper ECU)
      *2 IGIL

      Disconnect the E83 and E85 windshield wiper ECU connectors.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E83-5 (IG1L) - Body ground Engine switch on (IG) 11 to 14 V
      E83-5 (IG1L) - Body ground Engine switch off Below 1 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E85-10 (E) - Body ground Always Below 1 Ω

    OK

    REPLACE WINDSHIELD WIPER ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR