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 > Engine Immobiliser System (w/o Smart Key System): Key Cannot be Registered
DESCRIPTION A maximum of 5 master key ID codes can be registered. WIRING DIAGRAM Refer to "System Diagram". Click here CAUTION / NOTICE / HINT NOTICE: If the transponder key ECU assembly is replaced, refer to Registration. Click here PROCEDURE 1. CHECK REGISTRATION MODE (a) Check that the ...

Toyota Tundra Owners Manual