1993 Classic Keyless Entry

Hi, I am new to this site. It seems to be quite informative so I have become a member. I have recently purchased a 93 caprice classic ls that is in mint condition, except that the keyless entry does not work.

I have followed the basic steps of grounding the female plug in the trunk to reprogram the key pads, but nothing happens. It is my understanding that when you ground the plug the doors and trunk should cycle by shuting on and off. Nothing happens when I do this - am I doing something wrong?

Any suggestions would be greatly appreciated.

Did the keyless entry system come with the car? It could be a number of things, Improper ground, no positive input, bad reciever, bad remote, or it could be as simple as a blown fuse, or a remote with a bad battery.

Did the keyless entry system come with the car? It could be a number of things, Improper ground, no positive input, bad reciever, bad remote, or it could be as simple as a blown fuse, or a remote with a bad battery.


Thanks for the suggestions. The system came with the car, there are new batteries in the remote and all the fuses appear to be fine. Both receivers are like - have not been used for at least 4 years.

Where would the ground run? How would I check to see if there is a positive input?

Thanks any help!!

Find wheer the master reciever is on the vehicle (usually around the inside or outside of the firewall) and find the wires coming out of it. The posistive is usually a thicker red one, and the negative a thicker black one. Follow the wires to see where they lead. If its an aftermarket/dealer installed unit, positive should go into an in line fuse close to the battery (check that), and then right to the positive terminal on the battery, or a junction box that near the battery. Negative should connect to a nearby piece of metal (body or chassis) Often times the ground wire gets heavily corroded at the neck of where it's connected, and breaks off. If it doesn't look broken, pull on it, and see of it breaks. Also with the ground, where the wire is screwed onto the metal, it can often lose its connection from lack of use. Try loosening then tightening the ground wire again, and see of that helps. Follow any other wires that come out of the unit to see if there are any possible breaks. Good luck