Jeep won't start after installation of new deck

Out of curiousity ...did you disconnect the battery during installation or leave it connected? I've seen alarms work in a number of ways. One possibility is the alarm immobilized your starter when it sensed a disconnect at the battery terminal without some prior de-activation procedure. Or, if you left it connected while installing, you may have drained it somehow ...but I'd think a boost would solve that?

I would get out the multimeter and start testing all the wires ...especially your stereo ground wires and your battery/starter wires to see if there's anything happening there.

My alarm is picky and I found out the hard way one morning before work. The night before I had unhooked the battery when installing something. When I hooked it back up the alarm chirped once. I thought nothing of it and put it away in the garage. Next morning the alarm was going off when I opened the door and my remote would not disarm it. I tried starting it with no luck either. Turns out that I needed to use my remote once after hooking the battery back up so that the alarm would re-learn the remote code. Maybe something similar happed to you. The LED wires should have no effect on the alarm's operation unless it happened to blow a fuse, in that case the starter disable is what is preventing your Jeep from starting. The starter disable relay has to have power in order to allow it to start, a security feature in case the alarm power is cut to disable the alarm.

Shawn

I did not disconnect the battery during the installation. There was a inline fuse for the power line, so I pulled the fuse during installation. I did disconnect the battery to repair the power line going to the LED light. As I was reassembling the dash I noticed that a wire was arcing and it was the positive for the LED light. The inside of the wire was stripped near the metal part of the dash causing the arc. I repaired the wire and hooked the battery back up.

Any chance that my battery is just not holding a charge at all or should have jumping the battery override any of that type of issue?

My first guess is that the alarm system has a starter-bypass circuit to disable the starter when the alarm is set. If the alarm controller was confused, it could think it was still armed, and that would lock out the starter circuit.

Of course, I am assuming you have not cut into the Safety Switch on the clutch.

Ethan did pass the time by typing:

Try this. Disconnect the battery ground. Turn all accessories off Turn the headlights off Close the doors Put ignition key in and turn to ON. Connect the battery.

That will tell the alarm system the owner is reconnecting power and will reset the alarm system.

Your going to draw a teeny spark so its safer to set a damp cloth over the battery vents.

Thanks for everyone's suggestions. The issue was the alarm. I got ahold the manufacturer tech support and they directed me how to override the alarm so I could get the jeep started again. I had the alarm removed yesterday.

CRWLR wrote:

I'd like to remove my alarm... Any suggestions? It's got that badass black box tied into my wiring... Nick