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:

Malfunction disappears.

HINT:

Sound quality adjustment measures vary according to the type of amplifier.

END

2.	COMPARE WITH ANOTHER VEHICLE OF SAME MODEL

(a) Compare with another vehicle of the same model which does not have trouble to see if there is any difference in the sound quality.

OK:

No difference is found.

END

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Toyota Tundra Service Manual > Can Communication System: Lost Communication with Tilt and Telescopic Module (U1115)
DESCRIPTION DTC No. DTC Detection Condition Trouble Area U1115 There is no communication from the multiplex tilt and telescopic ECU. Outer multiplex tilt and telescopic ECU CAN branch wire or connector Power source or inside of multiplex tilt and telescopic ECU Multiplex tilt and telescopic ECU grou ...

Toyota Tundra Owners Manual