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

DTC Code DTC Name
Washer Motor Circuit

DESCRIPTION

The windshield wiper relay receives washer switch information from the windshield wiper switch assembly and operates the windshield washer motor and pump assembly.

WIRING DIAGRAM

E177857E04

CAUTION / NOTICE / HINT

Note:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (WINDSHIELD WASHER MOTOR - BATTERY)

    1. U123683E02

      Disconnect the A59 motor connector.

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

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      A59-1 - Body ground

      Ignition switch ON

      11 to 14 V
      Table 1. Text in Illustration

      *1

      Front view of wire harness connector

      (to Windshield Washer Motor and Pump Assembly)

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  2. INSPECT WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY

    1. E178171

      Remove the windshield washer motor (Click here).

    2. Apply battery voltage to the windshield washer motor and check the operation of the windshield washer motor.

      OK

      Measurement Condition

      Specified Condition

      Battery positive (+) → Terminal 1

      Battery negative (-) → Terminal 2

      Windshield washer motor operation is normal

    REPLACE WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY

    (Click here)

  3. CHECK HARNESS AND CONNECTOR (WINDSHIELD WASHER MOTOR - WINDSHIELD WIPER RELAY AND BODY GROUND)

    U123741E02

    1. Disconnect the A59 motor connector.

    2. Disconnect the H56 relay connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A59-2 - H56-25 (W)

      Always

      Below 1 Ω

      A59-2 - Body ground

      Always

      10 kΩ or higher
      Table 2. Text in Illustration

      *1

      Front view of wire harness connector

      (to Windshield Washer Motor and Pump Assembly)

      *2

      Front view of wire harness connector

      (to Windshield Wiper Relay Assembly)

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. CHECK HARNESS AND CONNECTOR (WINDSHIELD WASHER MOTOR - WINDSHIELD WIPER SWITCH AND BODY GROUND)

    U123743E02

    1. Disconnect the A59 motor connector.

    2. Disconnect the H14 switch connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A59-2 - H14-3 (WF)

      Always

      Below 1 Ω

      H14-2 (EW) - Body ground

      Always

      Below 1 Ω

      H14-3 (WF) - Body ground

      Always

      10 kΩ or higher
      Table 3. Text in Illustration

      *1

      Front view of wire harness connector

      (to Windshield Washer Motor and Pump Assembly)

      *2

      Front view of wire harness connector

      (to Windshield Wiper Switch Assembly)

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR