2G AC Fan

[TSIdad]

Replaced stock fans with Mishimoto and corrected the Mishimoto backwards wiring. Radiator fan works correctly. AC fan works when directly wired to battery. AC drivers side fan does not come on when connected to the stock wiring harness we push the AC button inside the car. I’m a multimeter newbie. What setting do I use on my multimeter to test if the wiring harness is getting signal to activate the AC fan when the button is pushed?

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[DSMPT]

First, check the 20A fuse in the pic below. If it's blown, replace it.

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