CAUTION / NOTICE / HINT HINT: When the "iPhone" is connected to the USB port of the No. 1 stereo jack adapter, Entune audio may not be output. Before performing troubleshooting, disconnect the "iPhone" connected to the USB port of the No. 1 stereo jack adapter, change the audio output source of the "iPhone" or turn the ignition switch off and then ON again. PROCEDURE
(a) In sound output setting mode, set volume, fader and balance to the initial values and check that the sound is normal. OK: Audio system returns to normal. HINT: Sound quality adjustment measures vary according to the type of amplifier.
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Toyota Tundra Service Manual > Air Conditioning System(for Manual Air Conditioning System): Air Inlet Damper Control Servo Motor Circuit (B1442/42)
DESCRIPTION The air inlet damper servo motor sends pulse signals to inform the air conditioning amplifier of the damper position. The air conditioning amplifier activates the motor (normal, reverse) based on the signals to move the air inlet damper to any position, which controls the intake air sett ...