When I went to crank my wrangler to leave this morning, it cranked right up. But the speedo, tac, and all the lights did not work at all. The windshield wipers would not turn as well. The radio worked fine though. A few days before all this, I had to be jumped up because I left my lights on while I was fishing. But since then it has ran fine. I googled the issue and some said undo battery for 20m. Some said just the neg or pos (can't remember) but I just undid both. Let it sit for 35m and since then I havn't had a issue. I have only made a 30m trip to town with my dog ricin shotgun but it seems to be ok now. Just wanted to post this and see if anyone else had this issue. I read that people have had to reflash their edu, replace the module that all the fuses and relays plug into, and some other crap. I would have been pretty pissed if I had to because I have babied this thing. It has seen a muddy road or two but nothing crazy because it is my dd. Anyways, if anyone else has had this issue let me know what you did please. Thanks
Teraflex Leveling Kit (2" Front & 1" rear),15" Ion 174s & 33x12.50 Duratracs- Installed
JKS Quick Disk-CAI (havn't decided on brand)-Full exhaust (ordering by piece)-Throttle BS (questionable)-Ordering in the future
Bump to the top and I have the same problem on my 2010 JK.
Went to fire it up on Saturday and instrument cluster is inop. No speedo, no tach, no warning lights, no information lights, none of the turn indicator/light switches and wiper switches were working. A/C didn't work but the fan did. Strange thing is the wiper came on and stayed on until I turned the ignition off. Radio was working too.
On the way to drop it off at the dealership today I was playing around with the light switch and everything started working. Crazy. I tired to get it to fail again but no luck. I still dropped it off at the dealer to see if they can figure things out.
MAStephens89...have you found a fix?
"Electric Hats On, Cool Visor Down, Two to Fly and Lets Get the Hell Out of Here!"
First thing verify the battery is in working order. Everything works off of a baseline voltage. The temperatures start dropping and the batteries show their wear and tear.
Battery should read 12.5 to 12.9VDC sitting there and 14+VDC with the engine running.
That would show up doing the battery test. If you are not at least at 14VDC with the engine running you have a bad alternator or battery. A good test for the battery is to shut off the engine while watching the volt meter. If it's bad, it'll drop like a stopwatch...tick tick tick.