Re: Strange issue - Jeep running without key
Those are all "lost communication", "open circuit", or "implausable data" codes. First check all plugs at the Control Modules and at the PCM. I would probably unplug everything, check all the contacts for damage, corrosion, etc. and the plug/unplug/plug in a few times, before locking them in place. Good luck and please keep us posted as to what you find.
05 LX/RT and 06 WK/GCO, (modded similarly) with MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI W/Add Air Inlet, K&N Filter, Sonnax Trans Line Press Booster, SC Tuner W/Adv Trans Tuning App, DS Tuner, Cust tubular headers w/3 in. catback, Bilsteins, SRT frt/rear bumpers, Eibach SRT Lwr Sprgs & Sways, FRI Sidewinder Cam Adv 2*, 6.1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils/.060 spark plug gap.