Question about 2006 Chrysler 300
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Posted on Jan 02, 2017
SOURCE: location of blend door or
The temperature door actuator is located at the bottom of the heater housing at the center terminal. It looks like this:
To remove the actuator
Posted on Oct 03, 2010
SOURCE: blend door motor stuck on
There is not a relay, per se, but there is the body control module (BCM). It seems to me the feedback circuit is not working. I have pasted the wiring diagram below--one if you have manual control and one if you have automatic (where you can specify temp). In either case, the feedback wire is red with a white stripe. If you are up for some troubleshooting, check the voltage on that wire by back-probing the connector. I believe that wire is at the end of a potentiometer that changes with the actuator position. The BCM supplies a 5 volt reference to the potentiometer, and you should see that 5 volts when the actuator is at one end of it's range. The voltage should be somewhat linearly lower as the actuator rotates away from the stop. If you are not seeing that kind of signal on that wire, I would replace the actuator. Otherwise, the problem could be in the BCM, but I doubt it. Let me know if you have questions, but it's hard to figure these new systems out when the BCM is like a black box and the actuator is too--I have no idea how it's wired.
Posted on Dec 11, 2010
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Fig. Remove the floor air outlet duct extension (1) from the floor duct (2)
Disconnect the electrical connection at the blend door actuator (#10 in pic below).
Fig. Blend door actuator and related components
Remove the blend door actuator mounting screws from the HVAC module.
Remove the blend door actuator as an assembly with the actuator cam.
Fig. Remove the blend door actuator mounting screws from the HVAC module
Picture of actuator:
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