Hello all,

I just recently bought a used 2008 Jeep Wrangler, well I was doing maintenance, one of the spark plug wires needed replacing and I noticed an Unplugged with coming from around what I think is the PCM, so I plugged it in and it drained my battery dead, any fix or was it not supposed to be plugged in?

 

Pics would be a great help.

 

Yup, really hard to tell what is going on here with that limited description. If something from the PCM was unplugged before, not sure how the jeep was operating correctly. would be interested to see pictures of what we're talking about here.

 

[img alt="I got it from the dealership like this no problem driving till recently, have had about 2-3 months, when I plugged it back in it cranks but doesnt start, now battery doesnt hold charge and Alternator draws under 12v.
Maybe cause to other issue that started and caused me to stop driving it the day it popped up and thats gear ratio codes popping up"]https://cimg0.ibsrv.net/gimg/www.jk-forum.com-vbulletin/2000x2000/img_20250805_180750_mp_7151cda53a769d3800567b6472e 435ff8208447d.jpg[/img]


I got it from the dealership like this no problem driving till recently, have had about 2-3 months, when I plugged it back in it cranks but doesn't start, now battery doesn't hold charge and Alternator draws under 12v. Maybe cause to other issue that started and caused me to stop driving it the day it popped up and that's gear ratio codes popping up

 

No bueno on the pic. Make sure you use the little picture icon on the edit bar.