crawlerjk

So I got an issue with my 04 Grand Cherokee. My turn signals, reverse lights, and ac stopped working at once. I know there is a large flasher/relay under the steering wheel to the left that controls all that. I replaced that twice. Not the issue. Also toggled it and bent the metal clips a bit to make sure there is a good connection.

My hazards work.

My fan works. But not blowing into jeep for cooling purposes.

What I did notice is that only when my headlights are turned, the AC is set to max cold, the the fan is set to off inside, and I press the AC button on, my turn signals will barely work. And there is a loud buzzing noise coming from that large relay. With the jeep off, that works for a minute and then you can see the power draining and it stops working but the buzzing increases from the flasher. When the jeep is running it flashes and buzzes.

I checked all the wiring I possible could but no traces of bad wires or grounds. I am going nuts! I feel like it may be a bad ground issue somewhere but I just can't find it.

Anyone else experience this??? Any advise would be much appreciated!!!

Bustedback

Check the battery and charging system, first place to look when there are weird electrical issues.