PROCEDURE
(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.
(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.
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Toyota Tundra Service Manual > Sliding Roof System: Sliding Roof Control Switch Circuit
DESCRIPTION If either the sliding function or tilt function does not operate, there may be a malfunction in the sliding roof switch circuit. WIRING DIAGRAM PROCEDURE 1. PERFORM ACTIVE TEST USING TECHSTREAM (SLIDING ROOF OPERATION) (a) Select the Active Test, use the Techstream to generate a control ...