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Old 10-29-2015, 12:04 PM   #8
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mbh47720 is on a distinguished road
Join Date: Oct 2015
Posts: 3
Default Re: Air Vent Control Not Working

try this from someone else on this board
and Save the trip to the dealer
Follow this procedure exactly:
Turn key on - eng not running
Calibrate the mode actuators by simultaneously pushing the A/C and RECIRC buttons on the HVAC control module 3 times each, within 2 seconds of initial push.
1. The A/C and RECIRC button LED's will flash while this calibration is taking place.
2. The calibration will take anywhere between 10 to 30 seconds depending on battery voltage.
3. The LEDs will quit flashing when the calibration is complete.
Cycle the ignition off then back on and verify proper operation


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