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Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HARNESS AND CONNECTOR BETWEEN HEADLIGHT RELAY (MARKING: HEAD) AND BODY ECU, AND BATTERY AND HEADLIGHT RELAY  . 
    1. NG Repair or replace harness or connector. 
    2. OK Check and replace body ECU.