07 and 08 JK - Antitheft System - Engine No Crank/No Start Condition - July 08
I had this happen on my '09 a few months ago. Was at the dealership on a Sunday AM looking at the 12s. Got in, no crank, no start and the remote would not function. Could lock it with the key, but if I unlocked it the alarm would go off and couldn't be stopped until it timed out. Naturally, I didn't have my trail tools in the rig at the time so no wrench to pull the negative battery cable. Called my neighbor to come get me and bring my spare key. No luck with that. Went home to get tools and Googled the symptom. Up popped a thread from the Jeep Forum about this exact issue. A dealer tech had responed back in '08 with the cause and the workaround, which is to lift the J13 fuse holder (big white dual fuse in the fuse block), wait 30 seconds and push back into place. I tried it when I got back to the rig with tools, worked first time.
Next day I went to the dealer and they knew the fix, which was to replace the wireless control module. Replaced it under warranty, no more issues.
In addition to that problem, a few times I've had it start, then immediately shut down, like I'd used a non-security key. It usually will start on subsequent tries. Pretty sure that one's a key issue.
'09 JKRU. 4" Teraflex long arm, Teraflex R44 housing, Teraflex / Fox Resis, Poly skids, Nemesis Billy Rockers, Nemesis flares, 37" ATZ P3s on 17" 5x5.5" Trailready HDs, Spyntec hubs, Yukon Hardcore lockout hubs, Teraflex BBK, Mopar BBK master/booster, Superior front & G2 rear axle shafts, CTMs, Reids, Synergy drag link & tie rod, 5.38s, TF Dual Rate front bar, TF bumpers, Warn Powerplant, Tom Woods shafts, AA xfer case cable, Kilby canister relo, RH4x4 cage.
Last edited by SoK66; 10-18-2015 at 08:09 PM.