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Headlight Cleaner Relay

WARNING: This page is about a different car, the 2002 Lexus GS 430 and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the headlight cleaner relay operation.
  2. Check that no continuity exists between terminals No. 2 and No. 5. See CONNECTOR IDENTIFICATION .
  3. Connect the positive (+) lead from the battery to terminals No. 1 and No. 5, and the negative (-) lead to terminal No. 3.
  4. Connect the negative (-) lead from the battery to terminal No. 4, and check that continuity exists between terminals No. 2 and No. 5 for 0.9-1.1 seconds, then no continuity exists.
  5. If the operation is not as specified, replace the motor.
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