Ah, computers, computers, computers! So how have they made YOUR life better? Suspect a problem with the Remote Keyless Entry (RKE) computer or the Body Control Module (BCM). Diagnosis is best left to the dealer.
If you want to tackle this yourself, start with a used BCM from the salvage yard. Be aware that if you are lucky enough to have a friend with the same car and you can borrow that module, it MUST also have the factory anti-theft system. You can install a Body Controller and an Engine Controller from a car without anti-theft, but either one will self-program the other one into requiring the anti-theft disarm signal. That self-programming can not be undone. That means if you put a BCM with or without anti-theft into your car, it WILL have anti-theft once you turn on the ignition switch. Neither computer will work now in a car without anti-theft, and, it will teach the anti-theft to the other computer in that car. That means both computers will need to be replaced for a non-anti-theft-equipped car to run again.
Any salvage yard BCM will work in your car, but if you take it back out, it will be programmed now for anti-theft. From now on, it will require the "disarm" signal before it will allow the engine computer to run the engine.
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Wednesday, April 8th, 2009 AT 2:06 PM
