Lexus IS250 · Service Manual BODY ELECTRICAL

INSPECTION

Inspection


INSPECT WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY

B108479E01

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.


INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY

B108480E01

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.


INSPECT HEADLIGHT CLEANER CONTROL RELAY

B109905E03

  1. Inspect headlight cleaner control relay operation.

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

      Standard resistance:
      10 kΩor 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. B109906E01
      Connect the negative (-) battery lead to terminals 1 (HOLD) and 5 (FRWA), and measure the resistance between terminals 4 (E) and 6 (PB).

      Standard:
      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)

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