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Discussion Starter #1
So, i gave up on the dealer fixing my climate control issues. Even though I have the lifetime warranty, it doesn't mean anything if they claim that they can't find an issue.

I believe it to be the blend door actuator. But when checking online, there are three individual units that handle recirc, temp and blend.

My car is a 2015 GT with dual climate control. I don't mind buying all three and replacing them, its just the lack of instructions on how.

Can someone tell me where these motors are located and how to change them?
 

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See your other post for the blend door:
https://www.dodge-dart.org/forum/dodge-dart-maintenance/62240-c-blows-cold-but-shuts-off-its-own-times.html



24 - Heating and Air Conditioning / Controls / ACTUATOR, Mode Door / Description

DESCRIPTION

The mode door actuator (1) used in the Automatic Temperature Control (ATC) heating and A/C system, is a reversible, 12 volt Direct Current (DC) servo motor, that is mechanically connected to the three mode-air doors. The mode door actuator is located on the upper left side of the HVAC housing.

The mode door actuator is contained within a black molded plastic housing with an integral wire connector receptacle (3). An output shaft (2) with splines connect it to the mode door linkage and integral mounting tabs (3) allow the actuator to be secured to the HVAC housing. The mode door actuator requires mechanical indexing to the mode door linkage and is electronically calibrated by the HVAC module.

dartHVACmodedoor1.jpg

The HVAC module must be calibrated each time an actuator motor is replaced (Refer to 28 - DTC-Based Diagnostics/HVAC - Standard Procedure) .

The mode door actuator is interchangeable with the actuator for the blend-air doors.



24 - Heating and Air Conditioning / Controls / ACTUATOR, Mode Door / Operation

OPERATION

The mode door actuator is connected to the HVAC module by a dedicated five-wire lead and connector of the HVAC wire harness. The mode door actuator can move the mode-air doors in two directions. When the HVAC module control pulls the voltage on one side of the motor connection high and the other connection low, the mode door actuator will move in one direction. When the HVAC module reverses the polarity of the voltage to the motor, the mode door actuator moves in the opposite direction. Once the HVAC module makes the voltage to both connections high or both connections low, the mode door actuator stops and will not move.

The mode door actuator contains a potentiometer, which the HVAC module uses to monitor the relative position of the mode-air doors. The HVAC module learns the mode-air door stop positions during the calibration procedure and will store a diagnostic trouble code (DTC) for any problems it detects in the mode door actuator circuits (Refer to 28 - DTC-Based Diagnostics/HVAC - Diagnosis and Testing) .

The mode door actuator cannot be adjusted or repaired and must be replaced if inoperative or damaged.



24 - Heating and Air Conditioning / Controls / ACTUATOR, Mode Door / Removal

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 follow these instructions may result in accidental airbag deployment and possible serious or fatal injury.


NOTE:
Illustration shown with instrument panel removed for clarity.


1.Disconnect and isolate the negative battery cable.

2. Remove the convergence telematics module (Refer to 08 - Electrical/8E - Electronic Control Modules/MODULE, Convergence Telematics/Removal) .

3.Disconnect the wire harness connector (2) from the mode door actuator (4).

dartHVACmodedoor2.jpg

4.Remove the two screws (1) that secure the mode door actuator to the air distribution housing (3).

5.Remove the mode door actuator from the air distribution housing.

24 - Heating and Air Conditioning / Controls / ACTUATOR, Mode Door / Installation

INSTALLATION

NOTE:
Illustrations shown with instrument panel removed for clarity.


1.Position the mode door actuator (4) to the left side of the air distribution housing (3).

dartHVACmodedoor2.jpg

2.Install the two screws (1) that secure the mode door actuator to the air distribution housing. Tighten the screws to 0.8 N·m (7 in. lbs.).

3.Connect the wire harness connector (2) to the mode door actuator.

4.Install the convergence telematics module (Refer to 08 - Electrical/8E - Electronic Control Modules/MODULE, Convergence Telematics/Installation) .

5.Connect the negative battery cable.

6.Initiate the Actuator Calibration function using a scan tool (Refer to 28 - DTC-Based Diagnostics/HVAC - Standard Procedure) .





24 - Heating and Air Conditioning / Controls / ACTUATOR, Recirculation Door / Description

DESCRIPTION

The recirculation door actuator (1) is a reversible 12 volt Direct Current (DC) servo motor. The recirculation door actuator is located on the bottom of the HVAC air inlet housing, behind the instrument panel.

dartHVACrecircdoor1.jpg

The recirculation door actuator is contained within a black molded plastic housing with an integral wire connector receptacle (4). Three mounting tabs (3) allow the actuator to be secured to the housing and output shaft (2) connects it to the recirculation air door.

The recirculation door actuator requires mechanical indexing to the recirculation air door.



24 - Heating and Air Conditioning / Controls / ACTUATOR, Recirculation Door / Operation

OPERATION

The recirculation door actuator is connected to the HVAC module by a dedicated five-wire lead and connector of the HVAC wire harness. The recirculation door actuator can move the recirculation air door in two directions. When the HVAC module pulls the voltage on one side of the motor connection high and the other connection low, the recirculation air door will move in one direction. When the HVAC module reverses the voltage, the recirculation air door will move in the other direction. When the recirculation air door reaches its travel limit, the HVAC module turns the voltage off.

The recirculation door actuator is diagnosed using a scan tool, (Refer to 28 - DTC-Based Diagnostics/HVAC - Diagnosis and Testing) .

The recirculation door actuator cannot be adjusted or repaired and must be replaced if inoperative or damaged.



24 - Heating and Air Conditioning / Controls / ACTUATOR, Recirculation Door / Diagnosis and Testing

DIAGNOSIS AND TESTING - RECIRCULATION DOOR ACTUATOR

NOTE:
Use this procedure when diagnosis of the Manual Temperature Control (MTC) system is required. Use a scan tool for diagnosis of the Automatic Temperature Control (ATC) system (Refer to 28 - DTC-Based Diagnostics/HVAC - Diagnosis and Testing)


NOTE:
See Wiring Information for circuit descriptions and diagrams. Wiring Information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors, splices and grounds.


1.Check the fuse in the Power Distribution Center (PDC). If OK, proceed to Step 2. If not OK, see Wiring Information, repair the shorted circuit and install a new fuse.

2.Operate the A/C heater system and verify that the rest of the system operates correctly. If OK, proceed to Step 3. If not OK, see Wiring Information, check for battery voltage and ground at the main HVAC wire harness connector and repair as necessary.

3.Remove the glove box (Refer to 23 - Body/Instrument Panel/GLOVE BOX, Instrument Panel - Removal) .

4.With the HVAC wire harness connected to the recirculation door actuator, connect the positive lead of a Digital Volt Ohm Meter (DVOM) to pin 5 and the negative lead of the DVOM to pin 6 of the recirculation door actuator wire harness connector.

5.Set the ignition to RUN and operate the recirculation control on the A/C heater control. Turn the control to the recirculation position and note the voltage on the DVOM. Turn the control to the fresh air position and note the voltage once again. The voltage should be about 12 volts DC and change polarity each time the control is turned. If OK, go to Step 14. If not OK, proceed to Step 6.

6.Turn the ignition to OFF and disconnect and isolate the negative battery cable.

7.Disconnect the wire harness connectors from the recirculation door actuator and the A/C heater module.

8.Temporally install a jumper wire between pins 5 and 6 of the recirculation door actuator HVAC wire harness connector.

9.Using a DVOM, check for continuity between pins 11 and 13 of the A/C heater control HVAC wire harness connector. If OK, go to Step 10. If not OK, see Wiring Information and repair the open circuit(s) as necessary.

10.Using a DVOM, check for continuity between pins 14 and 18 of the A/C heater control HVAC wire harness connector while operating the recirculation control on the A/C heater control. Turn the control to the fresh air position and check for continuity on the DVOM. Turn the control to the recirculation position and check for no continuity. If OK, proceed to Step 11. If not OK, go to Step 12.

11.Using a 12 volt DC power source, apply voltage to pin 5 of the recirculation door actuator and the power source ground to pin 6. Check for actuator movement. Reverse the polarity and check again for actuator movement. If OK, replace the HVAC module (Refer to 08 - Electrical/8E - Electronic Control Modules/MODULE, HVAC/Removal). If not OK, proceed to Step 14.

12.Remove the instrument panel cover.

13.Check the recirculation control switch in the back of A/C heater control for proper operation. If OK, see Wiring Information and repair the open circuit(s) as necessary. If not OK, replace the A/C heater control (Refer to 24 - Heating and Air Conditioning/Controls/CONTROL, A/C and Heater/Removal) .

14.Remove the recirculation door actuator and check for proper recirculation air door movement. The air door should not bind or stick in either direction. If air door movement is OK, replace the recirculation door actuator (Refer to 24 - Heating and Air Conditioning/Controls/ACTUATOR, Recirculation Door - Removal) . If air door movement is not OK, repair as necessary (Refer to 24 - Heating and Air Conditioning/Distribution/HOUSING, HVAC - Disassembly) .




24 - Heating and Air Conditioning / Controls / ACTUATOR, Recirculation Door / Removal

REMOVAL

WARNING:
Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (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 follow these instructions may result in accidental airbag deployment and possible serious or fatal injury.


1.Disconnect and isolate the negative battery cable.

2. Remove the steering column (Refer to 19 - Steering/Column/Removal) .

3.Remove the pedal assembly (Refer to 05 - Brakes, Base/Hydraulic/Mechanical/PEDAL(S) , Brake and/or Accelerator/Removal).

NOTE: Illustration shown with instrument panel removed for clarity

4.Disconnect the HVAC wiring harness connector and position to the side to gain additional clearance.

5.Disconnect the wire harness connector (2) from the recirculation door actuator.

dartHVACrecircdoor2.jpg

6.Remove the screw (1) that secures the recirculation door actuator to the air inlet housing (3).

7.Remove the screw (4) from the air inlet screen to gain access to the recirculation door.

8. Gently push the recirculation door (5) away from the recirculation door actuator, from the inside of the air inlet opening, to disengage the gear on the recirculation door actuator.

9.Remove the recirculation door actuator from the air inlet housing.






24 - Heating and Air Conditioning / Controls / ACTUATOR, Recirculation Door / Installation

INSTALLATION

1.Position the recirculation door actuator to the air inlet housing (3) and gently push the recirculation door inward to align the actuator output shaft with the splines of the recirculation door (5).

dartHVACrecircdoor2.jpg

2.Install the recirculation door actuator onto the air inlet housing and install the screw. Tighten the screw to 0.8 N·m (7 in. lbs.).

3. Install the air inlet screen onto the air inlet housing. Tighten the screw to 0.8 N·m (7 in. lbs.).

4.Connect the wire harness connector to the recirculation door actuator.


5.Connect the HVAC wiring harness connector.

6.Install the pedal assembly (Refer to 05 - Brakes, Base/Hydraulic/Mechanical/PEDAL(S) , Brake and/or Accelerator/Installation) .

7.Install the steering column (Refer to 19 - Steering/Column/Installation) .

8.Reconnect the negative battery cable.

9.Initiate the Actuator Calibration function using a scan tool (Refer to 28 - DTC-Based Diagnostics/HVAC/Standard Procedure) .
 
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