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 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.
Seat Belt Warning System

Symptom

Suspected Area

See page

Driver side seat belt warning light does not operate

Airbag system

Front seat inner belt assembly LH

-

Combination meter assembly

-

Main body ECU (driver side junction block assembly)

-

Front passenger side seat belt warning light malfunction

Airbag system

Occupant classification system

-

Front seat inner belt assembly RH

-

Combination meter assembly

-

Seat belt warning light does not operate for driver and front passenger seats

Combination meter assembly

-

Seat belt warning buzzer does not operate

Combination meter assembly

-

    Precaution

    System Description

    See More:

    Toyota Tundra Service Manual > Sfi System: Brake Switch "B" Circuit High (P0724)
    DESCRIPTION The purpose of this circuit is to prevent the engine from stalling while driving in the lock-up condition when the brakes are suddenly applied. When the brake pedal is depressed, this switch sends a signal to the ECM. Then the ECM cancels the operation of the lock-up clutch while braking ...

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