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Home >> Toyota >> 2004 >> Tundra Base, Standard >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Systems - Diagnostics >> Circuit Inspection >> Taillight Relay Circuit >> Inspection Procedure
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Inspection Procedure

  1. Check TAILLIGHT relay (See  BODY ELECTRICAL SYSTEMS (DOUBLE CAB) - TROUBLESHOOTING  ). 
    1. NG: Replace TAILLIGHT relay. 
    2. OK: Go to next step 
  2. Check wire harness and connector between TAILLIGHT relay and body ECU, and battery and TAILLIGHT relay (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    1. NG: Repair or replace wire harness and connector. 
    2. OK: Proceed to next circuit inspection shown on problem symptoms table (See  PROBLEM SYMPTOMS TABLE  ). 
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