WWDiesel wrote:
My understanding is that if you try and start the engine like two or three times with a NON-chipped key, the OBC will lock out the start system and even your chipped key then will not function. Doing this will require a dealer or certified locksmith to reset the system to allow your chipset to start the vehicle.
Bottom line, if you have a NON-chipped key,
DO NOT try to use it in the ignition switch!!!!
![Grim :grim:](./images/smilies/grim.gif)
<=== CPL 1998-2013
I never came across a Mopar vehicle that behaved that way. Anyone with a non-chipped key shouldn't be trying to start with it, it's just for opening the door or need to unlock the steering when towing. The security chip check happens just before engine light goes off. It will start and run 1-3 seconds then turn off if the security check fails.
Fords using PATS or later won't even crank.
Most others will crank but not fire. The individual little weirdnesses take 2 books nearly 2" thick to detail, at $150 for the set, and that was in 2012 for the last set I bought. I still have them somewhere in storage, but I couldn't tell you where right now if my life depended on it.
VW went to a system that even the dealers can't program keys, but you have to take the rig to a stealership. They hook up a machine with a dedicated internet connection and it's done online from the factory.
Toyota / Lexus were the worst for a while, and still pretty spendy. With a new rig, you get 2 "master-chip" keys. You can't tell them apart from any other keys, only the vehicle can. You can duplicate those keys if you have them, but if both are lost, in order to get it to run right you had to replace the security module, and program new keys into it. When new, the module was only available from the stealership at over $800. New keys and programming was extra. Plus the labor to pull the darn thing out. Some computer savvy folks came up with a hardware+software kit where you could take the security module apart, and re-flash the security eprom back to factory new settings. Dealer prices came down pretty sharply after that.
If you don't believe it functions that way on our Jeeps; stick a non-chipped key in
ignition switch and try and start it at least three (3) times in succession and let us know how it turns out!
I know I sure as heck am not going to test it just to find out how it works or doesn't!!!