Toyota Tundra Service Manual: Problem Symptoms Table

Toyota Tundra Service Manual / Vehicle Interior / Seat Belt / Seat Belt Warning System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Seat Belt Warning System

Symptom	Suspected Area	See page
Driver side seat belt warning light does not operate	Airbag system
	Front seat inner belt assembly LH	-
	Combination meter assembly	-
	Main body ECU (driver side junction block assembly)	-
Front passenger side seat belt warning light malfunction	Airbag system
	Occupant classification system	-
	Front seat inner belt assembly RH	-
	Combination meter assembly	-
Seat belt warning light does not operate for driver and front passenger seats	Combination meter assembly	-
Seat belt warning buzzer does not operate	Combination meter assembly	-

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Toyota Tundra Service Manual > Lighting System: DRL Relay Circuit
DESCRIPTION The main body ECU (multiplex network body ECU) controls the daytime running lights. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE 1. PERFORM ACTIVE TEST USING TECHSTREAM (a) Using ...

Toyota Tundra Service Manual: Problem Symptoms Table

Precaution

System Description

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