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"

    Precaution

    Registration

    See More:

    Toyota Tundra Service Manual > Lighting System: ACC Signal Circuit
    DESCRIPTION This circuit detects the ignition switch ACC or off condition, and sends it to the main body ECU (multiplex network body ECU). WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE 1. READ ...

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