Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Toyota >> 2004 >> Tundra Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 477 (Body Control Systems - Diagnostics) >> Body Control System >> Circuit Inspection >> Taillight Relay Circuit >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check TAILLIGHT relay (See  INSPECTION  ). 
    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   . 
scientia non olet · About Mike's Workshop Manuals