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Old 05-15-2021, 04:46 AM   #1
PLP
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Climate control errors - mixing flap, recirculation/fresh air. MOST reset?

Not sure if that is all caused by the aftermarket radio install... which was a bit sloppy, if you ask me.

Here is the screen shot from Durametric.



Symptoms: no heat although the heater core is hot. Error 26 Mixing flap motor fault
While researching it, I confirmed the fresh air/recirculation flap does not actuate either.

What works?
Basically everything else is fine.
I can change the temperature, adjust the blower, change direction of the air. It also works fine in automatic mode.
I also have the foam flying around. I know this one and solution for it. I will get to it eventually.

So, my work around during 15 hours drive in cold weather, where 6 were in rain, and another 3 in snow.
I managed to squeeze my hands under the flap motor and disconnected the arm from the flap.
The flap dropped automatically to the hot position. I could easily move it, so I know it has free movement.
Heat started blowing right away and I could continue my journey.


Anyway, what we could do here? What am I looking at?
Also, would the system be in German language?
It shows F for temp, but MANUELL for manual operation mode. Not sure if it has any significance here.

This is one I am not sure how to bite. Not only poor access, but some wiring messed up from the radio install.

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Old 05-17-2021, 03:55 AM   #2
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Update.

Guess what caused it? I would never got there if I was not deep cleaning the car.

Just by my "attention to details" I noticed that one pin on the black connector to the climate control unit sits a bit further than others.
Pulled the connector out, fixed the lock on the pin, pushed it back in, reinserted the connector, and all of sudden I can hear a motor spinning.

I reconnected the arm to the flap and temp mixing flap is working fine.

The PCM timeout is, I bet, radio related.

It is a problem on the long run?
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Old 05-17-2021, 07:38 AM   #3
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No, not an issue. Just means the connector isn't plugged in that detects the factory radio. it's fine.

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