How To Blend Door Actuator Replacement with Part Numbers

[matrix243]

Did you run a Self Test on the HVAC module? Each actuator contains a sensor so the module knows where the actuator is positioned. If the module commands a a position and it doesn’t see the actuator move as expected, it will set a DTC.

Mind explaining what the self test is? Can't find anything on it. I did find the test mode which I had no idea about, very cool, but seems to be just gauge info.

 

[matrix243]

Looks like older model was accessed from holding off + defrost or floor button then auto button. Didn't seem to work on mine. Also only have power button no off button so probably not right.

 

[FordTechOne]

Mind explaining what the self test is? Can't find anything on it. I did find the test mode which I had no idea about, very cool, but seems to be just gauge info.

There should be an option to self test a module under the DTC screen. I haven’t used ForScan in a while though, maybe someone else can chime in with specifics.

 

[matrix243]

There should be an option to self test a module under the DTC screen. I haven’t used ForScan in a while though, maybe someone else can chime in with specifics.

Oh wow, I've been using torque pro but I think this only covers engine management diagnostics where as the forscan, but I gather, can read all vehicle modules. Interesting. I need this

 

[FordTechOne]

Oh wow, I've been using torque pro but I think this only covers engine management diagnostics where as the forscan, but I gather, can read all vehicle modules. Interesting. I need this

Exactly, torque pro most likely can’t pull DTCs from anything other than the PCM. The basic version of ForScan is available for download at no cost.

 

[B E N]

You can also get premium trials for free as many times as you want, which gives you access to all the control modules.

 

[matrix243]

Still researching but getting codes:

B1086 - Faulty Air Distribution Damper Motor - Circuit short to ground
B11E7 - Faulty Air Distribution Damper Motor - Circuit short to battery or ground

 

[matrix243]

Also got and not sure on

PCM -U0422 - Invalid data received by body control module

 

[matrix243]

Well thats a shame. All signs pointed torwards blend door that was replaced. I found a service manual and I kept reading it over and over and the way I interpreted it was that when the blend door is defective it comes out as a short. Kept saying it does the sweep and checks the endpoints. So replaced the actuator a 2nd time. No go. $100 bucks wasted. I guess this will forever be an uncontrolled heater till I take the loss sell to someone else and they can deal with it. Can't afford any more time or money on it.

 

[FordTechOne]

Well thats a shame. All signs pointed torwards blend door that was replaced. I found a service manual and I kept reading it over and over and the way I interpreted it was that when the blend door is defective it comes out as a short. Kept saying it does the sweep and checks the endpoints. So replaced the actuator a 2nd time. No go. $100 bucks wasted. I guess this will forever be an uncontrolled heater till I take the loss sell to someone else and they can deal with it. Can't afford any more time or money on it.

A circuit short DTC can be a faulty control module, damaged circuit, or faulty actuator.Since you’ve already replaced the actuator, you’re down to the module or circuit. Do you have a basic volt meter? Checking the circuit is not very difficult.