Blower fan stopped working after cleaning climate control temperature sensor

[E53Envyy]

Hi guys,

Long story short: I removed the climate control to clean the internal fan and temperature sensor. It’d been buzzing away since I bought the car. I reinstall the climate control and now I have no blower fan (but hey, the little fan in the climate control is basically silent now!).

I’ve tested:
- all buttons on the Climate control work and I can audibly hear the vents moving and rear defrost.
- backlight works along with the display
- checked connections and fuses (fuses 34, 64)
- disconnect the battery for 15 seconds and reconnect.


Interesting part to note is when I disconnect the black connector on the climate control the rear passenger fan blows on max.

Anyone have an idea of the issue? I feel like I’m missing something obvious. I didn’t have any issues with the final stage resistor prior to cleaning the climate control but my symptoms point to a faulty resistor.

Any ideas would help! I had plans for tonight but without the defroster I’m kinda SOL


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