Toyota Tundra Service Manual: Poor Sound Quality in All Modes (Low Volume)

PROCEDURE

1.	CHECK AUDIO SETTINGS

(a) Set treble, middle and bass to the initial values and check that the sound is normal.

OK:

The sound returns to normal.

END (AUDIO SETTINGS ARE DEFECTIVE)

2.	COMPARE WITH ANOTHER VEHICLE OF SAME MODEL

(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.

END (AUDIO SETTINGS ARE DEFECTIVE)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Toyota Tundra Service Manual > Front Power Seat Control System(w/ Memory): Front Power Seat does not Operate with Front Power Seat Switch
DESCRIPTION When a signal is input into the position control ECU and switch assembly, the ECU manages the signals received from the power seat switches, and operates each motors. If the position control ECU and switch assembly receives more than 2 motors operation signals, the motor is stopped. Manu ...

Toyota Tundra Owners Manual