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 > Vehicle Stability Control System: Open in Stop Light Switch Circuit (C1249)
DESCRIPTION The skid control ECU (brake actuator assembly) receives stop light switch signals and uses them to determine whether or not the brakes are applied. DTC No. Detection Item DTC Detection Condition Trouble Area C1249 Open in Stop Light Switch Circuit Vehicle driven at 20 km/h (12 mph) or mo ...

Toyota Tundra Owners Manual