CAUTION / NOTICE / HINT HINT:
PROCEDURE
(a) Check that the same problem does not occur in the sound heard from the speakers of another "Bluetooth" audio compatible vehicle of the same model. OK: The same problem does not occur in the sound heard from the speakers.
(a) Remove additional devices which use radio waves. (b) Play the portable player and check that the same problem does not occur in the sound heard from the speakers. OK: The same problem does not occur in the sound heard from the speakers.
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Toyota Avalon Service & Repair Manual > Air Conditioning System(for Gasoline Model): Air Outlet Damper Control Servo Motor Circuit (Rear) (B1449)
DESCRIPTION The No. 2 air conditioning radiator damper servo sub-assembly sends pulse signals to inform the air conditioning amplifier assembly of the damper position. The air conditioning amplifier assembly activates the motor (normal or reverse) based on these signals to move the air outlet damper ...