How to put a low speed fan on a Chevy Tahoe?
How to put a low speed fan on a Chevy Tahoe? Now the low speed fan trigger needs to be connected to the PCM. Remove the PCM from its mounting bracket and unplug the wiring harness, which is held in with one screw. Unscrew it and slowly wiggle it side to side until it comes loose. You will need to insert a pin into an empty slot, pin 42 on the side that says "BLUE". How to test the blower fan control switch? This is good and is the correct and expected test result that tells you that the blower...