Toyota Tundra Service Manual: 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	-

Toyota Tundra Service Manual > Touch Select 2-4 And High-low System: Automatic Disconnecting Differential Motor Control Circuit Open (P17A0,P17A1)
DESCRIPTION This DTC is detected when an open circuit or short to ground in the A.D.D. shift motor drive circuit is detected. DTC Code DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other Trouble Area P17A0 Ignition switch ON (when not switching between 2WD and 4H) O ...

Toyota Tundra Owners Manual