cellardoor1

I was idling my jeep yesterday when my air system stopped working, AC/Heat/Fans all stopped working. When I started driving I also noticed neither of my turn signals were coming on, but my hazards were flashing just fine. I'm assuming this is a fuse/electrical issue, looking for any help or input on what the issues are so I can get them fixed. Thanks.

Noah911

It does sound like it could be fuse related to me too. Although, if it is a bad fuse, there is probably a reason for why it would be bad if it is blown.

Check the 40 AMP fuse under the hood in the PDC. It should be 12 VOLTS (I believe always hot with key on or off). This #1, 40 AMP fuse is probably not going to be the reason. It could be though, so it is worth checking.

It might more likely be the #20, 10 AMP fuse has gone bad in some way, or it is blown. Pull the #20 fuse and replace it with a spare 10 AMP fuse to see if it resolves the issues you are experiencing. You could look at it first to see if it has obviously been blown, or test it for continuity with a multimeter or a testing light.

If the #20 fuse is blown, it could be likely due to having shorted out wiring somewhere. If so, it will likely blow again sometime soon.

If the #20, 10 AMP fuse was the reason, and a replacement fuse ends up blowing on you... A possible area to cause this to happen is on the underside of the Jeep on the drivers side of the transmission housing. If you look down under there you will see some wires and a sensor. You may find the wires located there are missing some of their insulation.. or are otherwise damaged, is a possibility.

Hopefully, it is just the #20 fuse in the junction box and nothing else?

dave1123

Go to carmanualsclub.com and download a free copy of your Factory Service Manual, go to wiring diagrams, and see what else is on that circuit. I haven't got the time and you need to understand your vehicle anyway.