Blower fan stopped working after cleaning climate control temperature sensor

[E53Envyy]

Hi guys,

I’m having an interesting situation. I’ve been probing the final stage resistor connector and believe I found the issue. I can successfully probe the 12v battery source but I’m unable to draw any current. I am reading battery voltage on the pins but I cannot power a test light and I can even directly short the pins together.

I jumped the blower motor with an external power supply and it works fine. I swapped the FSR with a good known working unit and even tested the x5’s FSR in the 330 and it works fine. The climate control signal acts as it should ranging from 2.25-7.5v. I even tried bypassing the FSR completely by jumping the 12v power pins into the blower motor pins and nothing happened… not even a spark.

Overall everything seems to work expect for the main power input into the FSR. Any ideas?

Thanks



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