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Home >> Toyota >> 2002 >> 4Runner Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Body, Cab Control Systems >> Body Control Systems - Diagnostics >> Circuit Inspection >> Headlight Relay Circuit >> Inspection Procedure
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Inspection Procedure

  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. 
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