WIPER AND WASHER SYSTEM Headlight Cleaner Motor and Relay Circuit

DESCRIPTION

The headlight ECU sub-assembly RH controls the headlight cleaner motor and pump assembly.

WIRING DIAGRAM


  1. for LHD

    B006YY7E01

  2. for RHD

    B006YY7E02

CAUTION / NOTICE / HINT

Note


  • Check that the front washers are normal before performing the following procedure.

    Click here

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

    Click here

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

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter following menus: Body Electrical / HL AutoLeveling (Sub) / Active Test.

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


      Body Electrical > HL AutoLeveling (Sub) > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Headlight Cleaner Function to operate the 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 normal.
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY Click here

    OK

  2. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / HL AutoLeveling (Sub) / Data List.

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


      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
      The GTS display is normal.
      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 (POWER SOURCE - HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY)


    1. Disconnect the A8 headlight cleaner motor and pump assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A8-2 (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 MOTOR AND PUMP ASSEMBLY - HEADLIGHT CLEANER CONTROL RELAY)


    1. Disconnect the A9 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
      A8-1 (L) - A9-6 (PB) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (POWER SOURCE - HEADLIGHT CLEANER CONTROL RELAY)


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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A9-3 (IG) - Body ground Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A9-4 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK HARNESS AND CONNECTOR (HEADLIGHT ECU SUB-ASSEMBLY RH - HEADLIGHT CLEANER CONTROL RELAY)


    1. Disconnect the A11 headlight ECU sub-assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A11-7 (HLC) - A9-2 (H) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR