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

DESCRIPTION

The windshield wiper relay controls the wiper motor.

WIRING DIAGRAM

A004O90E01

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 (FRONT WIPER MOTOR - BATTERY)


    1. A004T5HE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Front Wiper Motor)

      Disconnect the A9 motor connector.

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

      Standard Voltage
      for LHD
      Tester Connection Switch Condition Specified Condition
      A9-4 - Body ground Ignition switch ON 11 to 14 V
      for RHD
      Tester Connection Switch Condition Specified Condition
      A9-5 - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FRONT WIPER MOTOR AND LINK ASSEMBLY


    1. A004TQWE06
      Text in Illustration
      *1

      Component without harness connected

      (Front Wiper Motor)

      Remove the front wiper motor Click here.

    2. Apply battery voltage to the front wiper motor and check the speed of the front wiper motor.

      OK
      for LHD
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 3

      Battery negative (-) → Terminal 5

      		 Motor operates at low speed

      Battery positive (+) → Terminal 2

      Battery negative (-) → Terminal 5

      		 Motor operates at high speed
      for RHD
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 2

      Battery negative (-) → Terminal 4

      		 Motor operates at low speed

      Battery positive (+) → Terminal 1

      Battery negative (-) → Terminal 4

      		 Motor operates at high speed

    NG

    REPLACE FRONT WIPER MOTOR AND LINK ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (FRONT WIPER MOTOR - WINDSHIELD WIPER SWITCH AND BODY GROUND)


    1. A004PZ8E02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Front Wiper Motor)
      *2

      Front view of wire harness connector

      (to Windshield Wiper Switch)

      Disconnect the A9 motor connector.

    2. Disconnect the D33 switch connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      A9-4 - D33-2 (+B) Always Below 1 Ω
      A9-3 - D33-3 (+1)
      A9-2 - D33-4 (+2)
      A9-5 - Body ground
      A9-4 - Body ground Always 10 kΩ or higher
      A9-3 - Body ground
      for RHD
      Tester Connection Condition Specified Condition
      A9-5 - D33-2 (+B) Always Below 1 Ω
      A9-2 - D33-3 (+1)
      A9-1 - D33-4 (+2)
      A9-4 - Body ground
      A9-5 - Body ground Always 10 kΩ or higher
      A9-2 - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (FRONT WIPER MOTOR - WINDSHIELD WIPER RELAY)


    1. A004RMZE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Front Wiper Motor)
      *2

      Front view of wire harness connector

      (to Windshield Wiper Relay)

      Disconnect the A9 motor connector.

    2. Disconnect the D60 relay connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      A9-2 - D60-11 (+2) Always Below 1 Ω
      A9-1 - D60-1 (+SM)
      A9-2 - Body ground Always 10 kΩ or higher
      A9-1 - Body ground
      for RHD
      Tester Connection Condition Specified Condition
      A9-1 - D60-11 (+2) Always Below 1 Ω
      A9-3 - D60-1 (+SM)
      A9-1 - Body ground Always 10 kΩ or higher
      A9-3 - Body ground

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR