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 > Can Communication System: Open in One Side of Bus 3 Branch Line
DESCRIPTION If an ECU or sensor is not displayed on the "CAN Bus Check" screen of the Techstream and some ECUs and sensors repeatedly appear and disappear from the screen when the CAN main bus lines are normal (there is no open, short, short to +B or short to GND in the main bus lines), there may be ...

Toyota Tundra Service Manual: Problem Symptoms Table

Precaution

System Description

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