Toyota Tundra Service Manual: No Sound can be Heard from Speakers

PROCEDURE

1.	CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) In sound output setting mode, set volume, fader and balance to the initial values and check that the sound is normal.

OK:

Audio and visual system returns to normal.

END (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): Unmatched Key Code (B2795)
DESCRIPTION This DTC is stored when a key with a different vehicle serial number is inserted into the ignition key cylinder. DTC No. Detection Item DTC Detection Condition Trouble Area Note B2795 Unmatched Key Code A key with a different vehicle serial number is inserted into the ignition key cylind ...

Toyota Tundra Owners Manual