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 system 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 area below.

Power Tilt and Power Telescopic Steering Column System

Symptom	Suspected Area	Link
Only manual switch does not operate	Tilt and telescopic manual switch circuit
Only auto away/return function does not operate	Check customize status of auto away/return function using the Techstream
Only auto away/return function does not operate	IG power source circuit
Only auto away function does not operate	Ignition switch (for 3UR-FE)
	Ignition switch (for 3UR-FBE)
	Multiplex tilt and telescopic ECU
Only auto return function does not operate	Ignition switch (for 3UR-FE)
	Ignition switch (for 3UR-FBE)
	Multiplex tilt and telescopic ECU
Only microcomputer preset memory/recall function does not operate with the set switch operation	Front power seat control system
	Seat memory switch LH
	Front power seat switch LH
	Multiplex tilt and telescopic ECU

Toyota Tundra Service Manual > Seat Belt Warning System: Front Passenger Side Seat Belt Warning Light Malfunction
DESCRIPTION When the ignition switch to ON, the occupant detection ECU sends a signal to the center airbag sensor assembly to indicate the state of the front seat inner belt assembly RH and also whether the front passenger seat is occupied. The center airbag sensor assembly sends those signals to th ...

Toyota Tundra Owners Manual