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 the 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.

Engine Immobiliser System

Symptom	Suspected Area	Link
Engine does not start because no initial combustion occurs	Proceed to "Engine does not Start because No Initial Combustion"
Engine does not start but initial combustion occurs	Proceed to "Engine does not Start but Initial Combustion Occurs"
Security indicator light does not blink	Proceed to "Security Indicator Light Does not Blinking"
Key cannot be registered	Proceed to "Key Cannot be Registered"

Toyota Tundra Service Manual > Front Power Seat Control System(w/ Memory): Lifter Sensor Malfunction (B2653)
DESCRIPTION When the position control ECU and switch assembly does not receive a sensor signal despite upward or downward movement of the seat by power seat motor operation, this DTC is stored. DTC Code DTC Detection Condition Trouble Area B2653 The upward and downward lock detection position of the ...

Toyota Tundra Owners Manual