Toyota Tundra Service Manual: Problem Symptoms Table

Toyota Tundra Service Manual / Vehicle Interior / Engine Immobiliser / Engine Immobiliser System (w/o Smart Key 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 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"

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Toyota Tundra Service Manual > Touch Select 2-4 And High-low System: Fail-safe Chart
FAIL-SAFE CHART TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM DTC NO. Fail-safe Operation Fail-safe Deactivation Condition U0100 Prohibits switching to 4L or switching from 4L for all shift positions CAN communication signal from ECM is received U0122 Prohibits all switching except from 4H to 2WD CAN communi ...

Toyota Tundra Service Manual: Problem Symptoms Table

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