Toyota Tundra Service Manual: Problem Symptoms Table



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.

Key reminder warning system


Suspected Area

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Key reminder buzzer does not sound

Unlock warning switch

Front door courtesy light switch LH

Harness and connector

Main body ECU

Combination meter

Can communication system

    Parts Location

    System Description

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    Toyota Tundra Service Manual > Audio And Visual System: Sound Quality is Bad Only when Disc is Played (Volume is Too Low)
    PROCEDURE 1. REPLACE DISC WITH ANOTHER AND RECHECK (a) Replace the disc with a known good one and check that the malfunction disappears. OK: Malfunction disappears. Result Result Proceed to OK A NG (for Column Shift Type) B NG (for Floor Shift Type) C A END (DISC IS DEFECTIVE) B REPLACE RADIO AND DI ...

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    Toyota Tundra Service Manual

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