1996 Chrysler Cirrus theft system.

Tiny
TRAIN52
  • MEMBER
  • 1996 CHRYSLER CIRRUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 130,000 MILES
My car cut off on me driving down the road. And wouldnt start back up. The mechanic looked at it and said the puter is showing the anti theft light. And I should try to find the orignal key. Is that possible for the car to do that?
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Sunday, April 19th, 2009 AT 2:53 PM

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Tiny
CARADIODOC
  • EXPERT
There's nothing in the key related to the anti-theft system. That's a whole new and expensive set of problems on newer cars. The system is built into the engine computer and the body computer. When replacing either of these computers, they will learn the anti-theft programming from the other one. Once upgraded to this programming, it can not be undone. If your car came with the anti-theft system, any engine computer and any body computer will work. But; if your car does not have anti-theft, installing a computer with it programmed in will teach it to the other computer; then, both will need to be replaced before the car will start.

Although rare, a voltage spike can trick the body computer into self-programming itself with the anti-lock system. Both the engine and body computers will have to be replaced at the same time. Changing just one will cause it to learn the anti-theft programming from the other one.

If your car did come with anti-theft, all it takes to turn it off is to unlock the doors with the key fob or the key in the door lock. I've never heard of the anti-theft stalling the engine while it was running. The typical symptom of the system being activated is the engine starts but only runs for two seconds, then stalls.

The common causes of stalling while driving is a defective camshaft position sensor or crankshaft position sensor. They can be intermittent due to heat, and will often work after allowing the engine to cool for an hour or more.

Caradiodoc
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Tuesday, April 21st, 2009 AT 12:55 AM
Tiny
KAREN SCHUBERT
  • MEMBER
Previous owner said has happened bfor w anti theft system shutting down the engine
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Friday, January 6th, 2012 AT 7:13 PM

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