PROCEDURE
(a) Set treble, middle and bass to the initial values and check that the sound is normal. OK: The sound returns to normal.
(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.
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Toyota Tundra Service Manual > Touch Select 2-4 And High-low System: Transfer Shift Motor Limit Switch Circuit (P17AC)
DESCRIPTION This DTC is detected when a malfunction is detected in the limit switch circuit, which detects the position of the transfer shift motor. DTC Code DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other Trouble Area P17AC When the ignition switch is ON, the e ...