WIPER AND WASHER SYSTEM Headlight Cleaner Motor and Relay Circuit

DESCRIPTION

This circuit provides power to the headlight cleaner control relay.

The headlight cleaner control relay sends the signal from the switch, etc. to the headlight cleaner motor to operate the headlight cleaner system.

WIRING DIAGRAM

A01ENYTE08

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT FUSE (ECU-IG No.1, H-LP CLN)


    1. Remove the ECU-IG No.1 fuse from the cowl side junction block LH.

    2. Remove the H-LP CLN H-fuse from the engine room relay block.

    3. 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
      H-LP CLR H-fuse

    NG

    REPLACE FUSE

    OK

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


    1. A01ERYRE06

      Disconnect the relay connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      3 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      3 (IG) - 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
      4 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY


    1. A01END1E02

      Remove the headlight cleaner motor Click here.

    2. Apply battery voltage to the headlight cleaner motor connector and check the operation of the headlight cleaner motor.

      OK
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 1

      Battery negative (-) → Terminal 2

      		 Headlight cleaner motor operation is normal

    NG

    REPLACE HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (CLEANER MOTOR - CONTROL RELAY AND BATTERY)


    1. A01EO0UE09

      Disconnect the cleaner motor connector.

    2. Disconnect the control relay connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      1 - Body ground Always 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2 - 6 (PB) Always Below 1 Ω
      2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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