PROCEDURE
(a) Set treble, middle and bass to the initial values and check that the sound is normal. OK: The sound returns to normal.
(a) Compare with another vehicle of the same model which is not malfunctioning to see if there is any difference in the sound quality. OK: No difference is found.
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Toyota Tundra Service Manual > Airbag System: System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU (Transmitter) Receiving ECU (Receiver) Signal Communication Method Airbag Sensor Assembly ECM Crash detection signal CAN Brake Actuator Assembly (Skid Control ECU) Combination Meter Assembly SRS warning light on demand signal SRS warning light blin ...