Engine overheats only when the A/C is on and comes right back down when I turn it off/switch it to heat. The two engine codes I occasionally have pop up are P0480 (cooling fan 1 ctrl circ open) and P0693 (fan 2 ctrl circ low)
Did you ever find out where the relay is on the 2015 jeep? Most of the videos shown around the net are for older models, and I cannot find anything about the fan relay for the 2015 other than the relay that is in the fuse block.
I'd like to see you're on to the right track I had a similar problem standard makes a relay and ry1756 it's called a coolant relay for a 2015 Jeep Wrangler they're about $46 and you can get them at O'Reilly's advance or AutoZone I got mine at O'Reilly's and the quality of the product looks exactly like the factory. To locate it it's on the driver side left fender well really close to the firewall so if you lift your hood all the way up just before you get to the corner between the fender and the firewall you'll see it there's two of them I'm not sure what the other one is for but the one closest to the firewall is that relay.
Thank you so much!! You saved my Jeep from overheating. I was climbing a hill on a hot day in July and my Jeep overheated. I added some coolant back in, but I still couldn't drive more than a block without the temperature light coming on. I saw the radiator fan wasn't spinning even if I left the Jeep sitting with the AC + air re-circulation cranked. I ordered the relay from O'Reilly Auto Parts and it took all of 90 seconds to install. Fan started right up! Drove down to the store a couple of miles away and back with no temp issues.
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