Blend door actuator replacement instructions

If you have the dual zone option HVAC system there are multiple temperature actuators. In the first image are the 4 actuators. They are the mode actuator on the far left #1 then the two blend door actuators Drivers side is #10, the Passenger side actuator is #4, #5 is the air inlet door, it selects exterior air or recirculates interior air.
The one you replaced was the temperature blend door for the drivers side. The one that controls the passenger side temperatures is located on top of the heater box behind the dash. To access it you have to remove the dash and then the actuator.

This video gives a possible optional method

https://www.youtube.com/watch?v=0Ld5mvyfDUI

Check out the diagrams (Below). Please let us know what happens.

It might work for a while. Hard to say as it depends on what the initial reason it failed was. If it works great. Now you have a few options to use.

The ticking could be the mode door actuator but none of the actuators have a remote rod connected to them. They are all mounted so the various doors are driven directly. The mode door controls the airflow through the floor/dash and defrost ducting. It is on the left side of the HVAC case in that area, If you go into the drivers foot well and look up on the side of the case you will see the actuator mounted to the side of the case. Held on with 2 screws. Turn the key off and remove the cowl trim cover over the BCM in the right side footwell to access the fuse panel on the BCM under it. Then remove fuse 46 from that box. Now you can disconnect the actuator electrical connector. Then remove the two screws and pull the actuator straight out from the box. Reverse the process to install the new one, you may need move the door shaft under it to get the new one to fit into place, it will depend on where it stopped. Once it is installed connect the wire connection and then put fuse 46 back in. Now turn on the key and wait at least 30 seconds for the actuators to initialize. Once that time is up you can test to see if it now works properly. The most common failure in them is the plastic gears that will have a tooth break off or the plastic "axles" that the gears are on will break off. The ticking is the motor spinning one of the gears and the broken one acting like a ratchet tooth. An easy way to verify it's the issue is to put your fingers on it and move the mode door control from defrost to floor and you will feel it when it starts to click. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Is there power to the actuator? By any chance, did you operate the new actuator prior to install? Did you go through the relearn? Check out the diagrams (Below).

Here are the directions for replacement. The pic attached correlates with the directions. Take a look and see if anything helps.

Mode Door Actuator †Defrost/Panel/Floor Door

Item Part Number Description
1 †Defrost/panel/floor door mode door actuator electrical connector (part of 18B518)
2 W701696 Defrost/panel/floor door mode door actuator screw (2 required)
3 19E616 Defrost/panel/floor door mode door actuator

Removal and Installation

NOTE: The defrost/panel/floor mode door actuator can be accessed from underneath the LH side of the instrument panel.

Disconnect the defrost/panel/floor door mode door actuator electrical connector.
Remove the 2 defrost/panel/floor door mode door actuator screws.
Remove the defrost/panel/floor door mode door actuator.
NOTICE: The ignition key must be off when replacing the actuator. Energizing the actuator before installation will cause the part to become positioned incorrectly and proper orientation will be lost. Incorrect actuator operation will result.

To install, reverse the removal procedure.
Remove the passenger side cowl trim panel. For additional information, refer to Section 501-12.
NOTE: The purpose of the module actuator position calibration is to allow the HVAC module to reinitialize and calibrate the actuator stop points. To carry out calibration, carry out the following steps.

Remove Body Control Module BCM fuse 46 for at least one minute.
NOTE: When the ignition switch is switched to the ON position, the HVAC module will initialize and calibrate the actuators. Calibration of the actuators will take approximately 30 seconds.

Reinstall BCM fuse 46. Turn the ignition switch to the ON position and wait 30 seconds before verifying correct mode door actuator operation.

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.

Hi,

Let me know the results. If that doesn't work, then we have to check for power to the actuator itself. There could be an issue before the actuator. On the other hand, the actual mode door may be stuck, disconnected, or damaged.

Let me know.

Joe

If something has come apart, we can try to identify it from under the dash. If that doesn't work, the heater box will need removed to determine what is happening. I have to be honest, I don't suspect it to be the issue. I have a feeling there is no power to the actuator.

Good afternoon,

Yes, the actuator is behind the radio. I attached pictures for you of the location and the procedure for replacing the actuator.

Removal and Installation

1. Remove the Audio Control Module (ACM). For additional information, refer to Information and Entertainment Systems See: Communications Control Module > Removal and Replacement > Audio Control Module (ACM).

2. While pushing the glove compartment door tab, position the glove compartment downward.

3. Detach the 2 wire harness pin-type retainers and position the wire harness aside.

4. NOTE: The forward RH temperature blend door actuator screw can be removed with a combination wrench. With one hand working through the ACM opening, hold the top end of the combination wrench. With the other end of the combination wrench pointing away (toward the right front corner of the vehicle), and with the other hand working through the glove compartment opening, the combination wrench can be manipulated.

Remove the 2 RH temperature blend door actuator screws.

5. Detach the temperature blend door actuator.

6. Disconnect the temperature blend door actuator electrical connector.

7. Remove the temperature blend door actuator.

8. NOTICE: The ignition key must be off when replacing the actuator. Energizing the actuator before installation will cause the part to become positioned incorrectly and proper orientation will be lost. Incorrect actuator operation will result.

To install, reverse the removal procedure.

9. NOTE: The purpose of the module actuator position calibration is to allow the HVAC module to reinitialize and calibrate the actuator stop points. To carry out calibration, carry out the following steps.

Remove Smart Junction Box (SJB) fuse 15 for at least one minute.

10. NOTE: When the ignition switch is switched to the ON position, the HVAC module will initialize and calibrate the actuators. Calibration of the actuators will take approximately 30 seconds.

Reinstall SJB fuse 15. Turn the ignition switch to the ON position and wait 30 seconds before verifying correct mode door actuator operation.

Welcome to 2CarPros.

It is possible they caused it, but unlikely. Under the dash in the HVAC system is what is called a blend air door. The door's position is actuated by an electrical motor. If it is disconnected, you will only get heat or AC based on the position of the door.

Now the reason I said unlikely is because the blower motor's location in regards to the blend air door, but the connection is located behind the glove box, the same area where they would have worked on the blower motor. Maybe it was left disconnected or accidentally disconnected. That is where I would check.

Now the location is different if you have dual climate control. However, based on your description, I believe you have standard control. If I am wrong, let me know.

Here are the directions for replacement of the blend air door actuator. I will provide everything so you can locate the wiring and see if anything is disconnected. The attached pictures correlate with the directions. If everything is connected, I need you to pay attention to the directions starting with number 7. That is how the actuator is calibrated. If it was disconnected and the steps weren't followed, that can cause this problem as well.

Temperature Blend Door Actuator - RH

Removal and Installation

1. Remove the Audio Control Module (ACM). For additional information, refer to Accessories and Optional Equipment.

2. While pushing the glove compartment door tab, position the glove compartment downward.

3. Detach the 2 wire harness pin-type retainers and position the wire harness aside.

4. NOTE: The forward RH temperature blend door actuator screw can be removed with a combination wrench. With one hand working through the ACM opening hold the top end of the combination wrench. With the other end of the combination wrench pointing away (toward the right front corner of the vehicle) and with the other hand working through the glove compartment opening. The combination wrench can be manipulated.

3. Remove the 2 RH temperature blend door actuator screws.
4. Detach the temperature blend door actuator.
5. Disconnect the temperature blend door actuator electrical connector.
6. Remove the temperature blend door actuator.

7. NOTICE: The ignition key must be off when replacing the actuator. Energizing the actuator before installation will cause the part to become positioned incorrectly and proper orientation will be lost. Incorrect actuator operation will result.

To install, reverse the removal procedure.

8. NOTE: The purpose of the module actuator position calibration is to allow the HVAC module to reinitialize and calibrate the actuator stop points. To carry out calibration, carry out the following steps.

Remove Smart Junction Box (SJB) fuse 15 for at least one minute. See: Fuse > Application and ID

9. NOTE: When the ignition switch is switched to the ON position, the HVAC module will initialize and calibrate the actuators. Calibration of the actuators will take approximately 30 seconds.

Reinstall SJB fuse 15. Turn the ignition switch to the ON position and wait 30 seconds before verifying correct mode door actuator operation.

Check out the diagrams (Below). Please let us know what you find.

Welcome back:

Honestly, it changes from one actuator to two actuators. Take a look at the attached picture. I circled the wiring for both. Check both of them to make sure nothing is disconnected.

Joe