WIPER AND WASHER SYSTEM Headlight Cleaner Switch Circuit

DESCRIPTION

This circuit detects the conditions (on or off) of the headlight cleaner switch assembly.

WIRING DIAGRAM

A0043HVE03

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT HEADLIGHT CLEANER CONTROL RELAY


    1. Disconnect the A45 headlight cleaner control relay connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A45-2 (H) - Body ground Light control switch off and headlight cleaner switch on 11 to 14 V
      A45-2 (H) - Body ground Headlight cleaner switch off Below 1 V

    NG

    INSPECT HEADLIGHT CLEANER SWITCH ASSEMBLY Click here

    OK

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

  2. INSPECT HEADLIGHT CLEANER SWITCH ASSEMBLY


    1. A0040IYE24
      Text in Illustration
      *a

      Component without harness connected

      (Headlight Cleaner Switch Assembly)

      Remove the headlight cleaner switch assembly Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 (E) - 4 (B) Headlight cleaner switch off 10 kΩ or higher
      1 (E) - 4 (B) Headlight cleaner switch on Below 1 Ω

    NG

    REPLACE HEADLIGHT CLEANER SWITCH ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER SWITCH ASSEMBLY - HEADLIGHT CLEANER CONTROL RELAY)


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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      L51-4 (B) - A45-2 (H) Always Below 1 Ω
      L51-4 (B) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - HEADLIGHT CLEANER SWITCH ASSEMBLY)


    1. Disconnect the 1G No. 1 integration relay connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1G-10 (HL4A) - L51-1 (E) Always Below 1 Ω
      1G-10 (HL4A) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE NO. 1 INTEGRATION RELAY Click here