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 > Trailer Brake Control System: Output Circuit Temperature High / Over Current (C14A4,C14A6,C14AA)
DESCRIPTION The trailer brake control ECU (brake control with bracket relay) is connected via the trailer socket and direct line. The trailer brake control ECU (brake control with bracket relay) outputs a signal to the trailer socket. DTC No. Detection Item INF Code DTC Detection Condition Trouble A ...

Toyota Tundra Owners Manual