Electric Condenser fan will not turn on when Air Conditioner is turned on?

2012 RAM 1500

114,000 MILES • 4.7L • V8 • 4WD • AUTOMATIC

JERRY WILLIAMS2

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Fuses are all good. I pulled the connectors on the TIPM and saw no corrosion.
If I bypass the high-speed relay which is on the horn bracket, the fan works.

Jul 10, 2023 at 8:01 AM

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So, the condenser fan is run by the TIPM which goes out all the time in these trucks, but to be sure we should do a CAN scan, you can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here are the fan wiring diagrams so you can see how the system works and I have included how to change out the TIPM which is easy because it-self learns. Check out the images (below). Please let us know what happens.

Images (Click to enlarge)

Jul 10, 2023 at 1:06 PM