1987 Chrysler LHS I need to get a new computer

OGHAIRYNAVEL

MEMBER
1987 CHRYSLER LHS

Computer problem
1987 Chrysler LHS Automatic

my mechanic told me that I had to get a nw computer for my chrysler LHS but tte thing is once I got a new one I traded the old one at the junk yard for a new one now my problem is that the mechanic is saying that he needs the old computer back but that one is gone for good now what can I do is there like a default I can set it to or maybe a kit that will allow it to corispond with the security system because hes saying the new computer wonk work with the security system so what do u think I should do?

1 Reply

CARADIODOC

MECHANIC
33,871 POSTS

I'm confused. Don't know why the old computer is needed. The only concern is whether or not you have the factory-installed anti-theft system. If you do, you can stick any body computer and any engine computer in the car and they will self-program from the other computer.

What you can not do is install a used computer from a car that had anti-theft if your car does not have that system. Once a computer is programmed for anti-theft, it can not be undone, and the computer with that programming will teach it to the other computer. (Welcome to the world of complicated, expensive, unreliable, unnecessary computers. This is why I drive a 1988 Grand Caravan). If the used computer has anti-theft and was installed in your car, AND your car doesn not have anti-theft, both the engine and body computers will need to be replaced with computers from cars that did not have anti-theft.

Caradiodoc