WIPER AND WASHER SYSTEM(w/ Rain Sensor) Headlight Cleaner Motor and Relay Circuit

DESCRIPTION

The headlight cleaner control relay controls the headlight cleaner motor and pump assembly.

WIRING DIAGRAM

A01QSM7E01

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY


    1. Remove the headlight cleaner motor and pump assembly.

      Click here

    2. Inspect the headlight cleaner motor and pump assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE HEADLIGHT CLEANER WASHER MOTOR AND PUMP ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY - HEADLIGHT CLEANER CONTROL RELAY AND BATTERY)


    1. Disconnect the A47 headlight cleaner motor and pump assembly connector.

    2. Disconnect the A48 headlight cleaner control relay connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A47-1 - A48-6 (PB) Always Below 1 Ω
      A47-1 - Body ground Always 10 kΩ or higher

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A47-2 - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER CONTROL RELAY - BATTERY AND BODY GROUND)


    1. A01QQ3HC03
      *a

      Front view of wire harness connector

      (to Headlight Cleaner Control Relay)

      Disconnect the headlight cleaner control relay connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A48-4 (E) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A48-3 (IG) - 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

    REPAIR OR REPLACE HARNESS OR CONNECTOR