Chrysler Repair: 2000 Chrysler 300M, negative battery cable, shaft position


Question
I have a 2000 Chrysler 300m. I only get heat and air out of the vents. The code for the diagnostic mode is 24 at the automatic temp control. Where is the MODE ACTUATOR located and how do I access it.

Answer
MODE DOOR ACTUATOR
The mode door actuator is an electric motor. It mechanically positions the A/C unit panel/bi-level door and the floor/defrost door. This actuator contains a feedback strip which allows the computer control to know the exact position of the mode door at all times. The mode door actuator is not serviceable and must be replaced if found to be defective.

The mode door actuator is located on the lower left side of the HVAC unit housing Mode Door Actuator Location

REMOVAL
Open hood and disconnect the negative battery cable remote terminal from the remote battery post Negative Battery Cable Remote Terminal
Remove left and right underpanel ducts.
Remove floor console.
Remove center floor heat adaptor duct.
Remove rear seat heat forward adaptor duct.
Loosen center support bracket and pry rearward to gain access to the actuator.
Remove actuator retaining screws. Then pull actuator straight down. Upon removal, note the shaft position of the actuator, because the shaft on this motor is keyed. When installing new actuator, its shaft must be positioned in the same location.
Remove electrical connection on actuator.
INSTALLATION
For installation, reverse the above procedures