Good lawd has it ever been a while since I’ve posted on here. The place sure has changed. Ok so the long and short of it. Apparently I’m a glutton for punishment and picked up a 05 Jeep Grand Cherokee. Well, at least it’s a 4.7. So after charging the battery, we tried to start the truck. 3 partial starts (3 seconds of run time) and the the truck now won’t crank over. Great. Troubleshoot the ignition circuit and did some digging and apparently the immobilized has locked out the engine. Yay!!
Did some more digging and it appears that the induction coil on the key transponder chip is all chewed up. It basically looks like someone caught it with a screw driver while changing the key fob battery. So now i have a set of transponder keys on order and will more than likely be towing the truck to a dealer for reprogramming of the keys. But my question is. Is there any way to reset the imobilizer? Even if it only gives me 3 more cranks before it locks out the engine again, i just want to verify that everything does indeed work and that i am not missing anything.
Sounds pretty specific, might want to hit up a jeep forum
Yeah I’ve been browsing them. The common consensus is that I’ll need to take it into a dealer. BUT, there is also some minor amount of info out there that seems to point towards an immobilized reset, which will basically will let the engine start for 3 seconds before the skim kills it again.
Did a quick search and no wonder you came back here to ask, lol. Some of the sites with “solutions” are click bait at best and have questionable answers.
This seems easy enough to try:
Open the driver’s side door. Close the other doors.
Press the power door-lock switch on the keyless entry fob.
Close the driver’s side door. Leave all doors closed for about 16 seconds until the Vehicle Security Light on the instrument cluster stops flashing quickly. When the light flashes at a slower rate, this signifies that the system has been reset and rearmed.
Also this sounds shitty:
Starting with 2005 models, the Remote Keyless Entry (RKE) transmitter is built-in to the key fob…
For additional security, two pre-programmed keys are needed in order to register additional keys into the system. In the event of the loss of all keys, special programming equipment is needed to register new keys into the system.
It is highly recommended that you get a spare third key made and programmed for your Jeep. It’s a good idea to do this while you still have your two original keys. If you were to ever lose one of those keys, it’s a lot more costlier to have a replacement made as you must go to the dealer or a specialty locksmith to have the programming done. With your own pair of original keys, you can easily program a new key yourself.
A four digit PIN number is needed to service the Sentry Key Immobilizer System. This number can be obtained from your authorized dealer. However, this number can also be found on your customer invoice that you were given upon receipt of your vehicle.
NOTE: Once a Sentry Key has been programmed as a valid key to a given vehicle, it cannot be programmed as a valid key for use on any other vehicle.
At the time of purchase, the original owner is provided with a four digit PIN number. This number is required for dealer replacement of keys. Duplication of keys may be performed at an authorized dealer or by using the Customer Key Programming procedure. This procedure consists of programming a blank key to the vehicle electronics. A blank key is one which has never been programmed.
NOTE: When having the Sentry Key System serviced, bring all keys to the dealer.
Thanks Onyx.
I tried all of the above and then some. Nothing worked. Ssooooo, i contacted these guys http://autocomputerperformance.com/chryslerdodgejeep.html. Talked to the guy on the phone for some time and mailed them my Ecu, for them to disable the immobilizer feature. Pricing even with shipping was better than the dealer. I guess I’ll follow up on the results when i get my ecu back(should be this weekend).
I can program jeep keys. once you get the keys cut i can swing by and program them.
Thanks Mike. Already taken care of though. The company in Florida hooked me up. Now it’s time for the mechanical crap.