Toyota Tundra Service Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of the problem symptom. 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 the system before inspecting the suspected areas below.

LIN communication system

Symptom	Suspected Area	See page
Air Conditioning Control Assembly Communication Error	LIN communication line
	Air conditioning amplifier assembly
	Air conditioning control assembly
	Harness or connector

Toyota Tundra Service Manual > Blind Spot Monitor System: Lost Communication with ECM / PCM "A" (U0100,U0125,U0126,U0129,U0142)
DESCRIPTION These DTCs are stored if there is a malfunction in the CAN communication system connected to the blind spot monitor sensor. HINT: If CAN communication system DTCs are stored, they may also be stored for other systems. DTC Code DTC Detection Condition Trouble Area U0100 Lost communication ...

Toyota Tundra Owners Manual