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 > Power Window Control System(w/ Jam Protection Function): Glass Position Initialization Incomplete (B2313)
DESCRIPTION The power window regulator motor is driven by operating the power window switch. The power window regulator sub-assembly has motor, regulator and ECU functions. When the ECU determines that the power window regulator motor has not been initialized, DTC B2313 is stored. HINT: DTC B2311 is ...

Toyota Tundra Owners Manual