Toyota Tundra Service Manual: Sound Quality is Bad Only when Disc is Played (Volume is Too Low)

Toyota Tundra Service Manual / Audio, Visual, Telematics / Navigation / Multi Info Display / Navigation System / Sound Quality is Bad Only when Disc is Played (Volume is Too Low)

PROCEDURE

1.	REPLACE DISC WITH ANOTHER AND RECHECK

(a) Replace the disc with a known good one and check that the malfunction disappears.

OK:

Malfunction disappears.

Result

Result	Proceed to
OK	A
NG (for Column Shift Type)	B
NG (for Floor Shift Type)	C

END (DISC IS DEFECTIVE)

REPLACE NAVIGATION RECEIVER ASSEMBLY

Sound of Portable Player cannot be Heard from Speakers or Sound is Low

Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier

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