Good afternoon,
The blend door actuator sounds like it is frozen and not working in either direction. This is a very common failure for this issue.
https://www.2carpros.com/articles/replace-blend-door-motor
I attached the procedure for you for replacement with pictures of the location of the actuators.
Roy
REMOVAL
WARNING:
Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions may result in accidental airbag deployment and possible serious or fatal injury.
NOTE:
The Dual Zone heating and A/C system has two blend door actuators, one for the driver side and one for the passenger side.
LEFT SIDE
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1. Disconnect and isolate the negative battery cable.
2. Remove the left side instrument panel silencer See: Dashboard / Instrument Panel > Removal and Replacement > Silencer Panel - Removal.
3. Remove the two screws (4) that secure the blend door actuator (12) to the left side of the HVAC air distribution housing (3).
4. Remove the blend door actuator from the air distribution housing and disconnect the HVAC wire harness connector (2) and remove the actuator from the vehicle.
RIGHT SIDE
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1. Disconnect and isolate the negative battery cable.
2. Remove the right side instrument panel silencer See: Dashboard / Instrument Panel > Removal and Replacement > Silencer Panel - Removal.
3. Remove the glove box and the glove box trim panel from the instrument panel See: Glove Compartment > Removal and Replacement > Instrument Panel Glove Box - Removal.
4. Remove the two screws (1) that secure the blend door actuator (4) to the right side of the HVAC air distribution housing (3).
5. Remove the blend door actuator from the air distribution housing and disconnect the HVAC wire harness connector (2) and remove the actuator from the vehicle.
Images (Click to make bigger)
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Saturday, January 9th, 2021 AT 11:42 AM