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Discussion Starter · #1 ·
Hey all, first time posting here since I'm in quite a pickle. Sorry, here's the long version...
I recently had issues starting my GC. The first attempt to start would fail. Lights come on, the engine tries to turn over but quickly gives up. The second attempt it would start up just fine. After a few weeks (I got lazy over the holidays), it would usually take a third attempt before it started.
After some advice from a mechanic we replaced the main battery assuming that was the issue. Didn't fix it. After driving it just a few minutes, the ESS system seemed to give out. It attempted to engage when I came to a stop light but failed and the "Stop/Start unavailable; service stop/start system" error message came up. I took it to the dealership just to ask them some questions and they told me the ESS/auxiliary battery was dead. Made perfect sense.

While changing the aux battery, we accidentally hit one of the screws in that area with a wrench and sparks flew. Didn't think too much of it at first. We started the Jeep up again and it started fine but now a battery warning light was on. After a couple more starts, my GC started performing some sort of exorcism. All the lights/warning/everything just started going nuts. It was shaking, yes shaking, during it's freakout. It wouldn't let me turn it off and after about a minute of all of this, it shut down on it's own (I think, I was honestly freaking out myself).
We have a friend who had a similar issue with their GC and it turned out they also hit one of the screws with a wrench which blew a fuse. Unfortunately, the fuses for this are in a small panel underneath the positive jumper terminal (underneath the hood on the passenger side) apparently called a High Current PDC panel? Problem is we can't figure out how to remove this panel. As you can see from the pics, we have the top connectors removed but after that we're stuck. Does anyone have any suggestions? I'd greatly appreciate it!
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Discussion Starter · #2 ·
Ended up figuring this out the other day, thankfully. For anyone in the future who runs into this problem, there are two tabs (circled in screenshot) on both sides of the top of the black plastic case. Once you push both of those tabs, you should be to push the positive jumping terminal (circled in screenshot) down and the fuse block should slide out. Mine was stuck in there so hard so that's what made it hard to figure out (and not wanting to break anything else).
After we removed the fuse block, we were able to buy a new one at our local dealership. Here's the listing on the mopar website:
2011-2022 Mopar Fuse Block 68089468AA | Mopar Estores
2011-2022 Mopar Fuse Block 68089468AA
store.mopar.com
store.mopar.com
Amazon also has them (sold by Mopar) for about half the price but I would have had to wait a whole week for it to arrive.
Anyway, once we replaced the fuse block and both batteries (since that was the original problem), my Jeep started up real nice! All the warnings went away and auto stop/start actually worked for the first time in the whole year I've had my Jeep haha.
 
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