WIPER AND WASHER SYSTEM Headlight Cleaner Motor and Relay Circuit

DESCRIPTION

The No. 1 headlight ECU sub-assembly RH controls the headlight cleaner motor and pump assembly.

WIRING DIAGRAM

B000PQNE01

CAUTION / NOTICE / HINT

Note


  • First check that the front washer operates normally.

    Click here

  • Check that the lighting system is normally before performing the following procedure.

    Click here

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

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    1. Perform the Active Test according to the display on the GTS.

      Click here


      Body Electrical > HL AutoLeveling (Sub) > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Headlight Cleaner Operate headlight cleaner motor and pump assembly OFF or ON -

      Body Electrical > HL AutoLeveling (Sub) > Active Test
      Tester Display
      Headlight Cleaner
      OK
      Headlight cleaner motor and pump assembly is operate normally.
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY Click here

    OK

  2. READ VALUE USING GTS


    1. Read the Data List according to the display on the GTS.

      Click here


      Body Electrical > HL AutoLeveling (Sub) > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Front Window Washer Switch Windshield wiper switch assembly (washer switch) condition OFF or ON

      OFF: Windshield wiper switch assembly (washer switch) off

      ON: Windshield wiper switch assembly (washer switch) on

      		 -

      Body Electrical > HL AutoLeveling (Sub) > Data List
      Tester Display
      Front Window Washer Switch
      OK
      On the GTS screen, ON or OFF is displayed accordingly.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY RH Click here

    NG

    REPLACE STEERING SENSOR Click here

  3. 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 MOTOR AND PUMP ASSEMBLY Click here

    OK

  4. INSPECT HEADLIGHT CLEANER CONTROL RELAY


    1. Remove the headlight cleaner control relay.

      Click here

    2. Inspect the headlight cleaner control relay.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE HEADLIGHT CLEANER CONTROL RELAY Click here

    OK

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


    1. Disconnect the A59 headlight cleaner motor and pump assembly connector.

    2. Disconnect the A2 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
      A59-1 (L) - A2-6 (PB) Always Below 1 Ω
      A59-1 (L) or A2-6 (PB) - 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
      A59-2 (B) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER CONTROL RELAY - NO. 1 HEADLIGHT ECU SUB-ASSEMBLY RH, BATTERY AND BODY GROUND)


    1. Disconnect the A2 headlight cleaner control relay connector.

    2. Disconnect the A37 No. 1 headlight ECU sub-assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A2-2 (H) - A37-7 (HLC) Always Below 1 Ω
      A2-4 (E) - Body ground Always Below 1 Ω
      A2-2 (H) or A37-7 (HLC) - Body ground Always 10 kΩ or higher

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A2-3 (IG) - Body ground Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY RH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR