Front Washer Motor Inspection

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Wiper And Washer. Lexus Gs430, Gs300. Uzs190 Grs190

  1. INSPECT WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY

  2. INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY

  3. INSPECT HEADLIGHT CLEANER CONTROL RELAY

Front Washer Motor -- Inspection



1. INSPECT WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Wiper And Washer.Wiper And Washer System.Front Washer Motor Inspection
HINT:
This check should be performed with the front washer motor and pump installed to the washer jar.

  1. Fill the washer jar with washer fluid.

  1. Connect the positive (+) battery lead to terminal 1 of the washer motor and pump, and the negative (-) lead to terminal 2.

  1. Check that washer fluid flows from the washer jar.

    OK:
    Washer fluid flows from washer jar.


2. INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Wiper And Washer.Wiper And Washer System.Front Washer Motor Inspection
HINT:
This check should be performed with the headlight cleaner motor and pump installed to the washer jar.

  1. Fill the washer jar with washer fluid.

  1. Connect the positive (+) battery lead to terminal 1 of the headlight cleaner motor and pump, and the negative (-) lead to terminal 2.

  1. Check that washer fluid flows from the washer jar.

    OK:
    Washer fluid flows from washer jar.


3. INSPECT HEADLIGHT CLEANER CONTROL RELAY


Lexus Gs430, Gs300. Uzs190 Grs190.Wiper And Washer.Wiper And Washer System.Front Washer Motor Inspection


  1. Inspect headlight cleaner control relay operation.

    1. Measure the resistance between terminals 4 (E) and 6 (PB).

      Standard resistance:
      10 kΩ or higher

    2. Connect the positive (+) battery lead to terminal 3 (IG) of the connector, and the negative (-) battery lead to terminal 4 (E).

    3. Connect the negative (-) battery lead to terminal 1 (HOLD) and 2 (H), and measure the resistance between terminals 4 (E) and 6 (PB).

      Standard resistance:
      Tester Connection
      		Specified Condition
      4 (E) - 6 (PB)
      		Below 1 Ω
      (when connecting)
      4 (E) - 6 (PB)
      		10 kΩ or higher
      (0.8 to 0.9 seconds after connecting)

    4. Disconnect the negative (-) battery lead from terminal 1 (HOLD) and 2 (H).

    5. Disconnect the positive (+) battery lead from terminal 3 (IG), and then reconnect it.



      6. Lexus Gs430, Gs300. Uzs190 Grs190.Wiper And Washer.Wiper And Washer System.Front Washer Motor Inspection

    6. Connect the negative (-) battery lead to terminals 1 (HOLD) and 5 (FRWA), and measure the resistance between terminals 4 (E) and 6 (PB).

      Standard resistance:
      Tester Connection
      		Specified Condition
      4 (E) - 6 (PB)
      		Below 1 Ω
      (when connecting)
      4 (E) - 6 (PB)
      		10 kΩ or higher
      (0.8 to 0.9 seconds after connecting)