Key fob - not working?

Take the VIN number, title, registration and a couple forms of ID with you and visit a dealer, they can order and reprogram new fob's for it if it is a factory system. Or call an automotive locksmith, they can also program in fob's and may have them in stock for a better price than the dealer.

As for starting it without the fob. If you have a correctly programmed key it should start it just fine. Then take it to a locksmith and have them program in new fobs, and erase the old ones.

Hello,

I have included all the information you will ever need on your vehicle's Remote Key-less Entry System (RKE) in the diagrams down below. Please, don't hesitate to ask should you have another question for us. That's what we are here for. Enjoy.

Thanks,
Alex
2CarPros

You don't need that wire. It mainly changed the preset stations to "hers" or "his" depending on which key fob was used to unlock the doors.

If you removed a cassette / cd combo radio, those are built by Mitsubishi and are REAL high quality radios. They do develop a few minor problems, but once repaired, they're repaired for life.

PROGRAMMING
TRANSMITTER PROGRAMMING
Up to 4 Transmitter Identification Codes (TIC's) can be programmed into receiver at any given time.

1. Open driver's door of vehicle. Leave it open through the programming procedure.

2. Move mechanical door lock lever to the LOCK position.

3. Insert ignition key and turn it to RUN position.

4. Turn ignition to RUN position. Within 20 seconds, aim a transmitter at receiver dome and press lock button for at least 5 seconds. Once receiver accepts programming code the driver's door will unlock.

5. Once first transmitter has been programmed, additional transmitters (up to 4) may be programmed into receiver. Within 20 seconds of the previous transmitter programming, move the mechanical door lock lever to LOCK position. Aim another transmitter at receiver dome and press LOCK button for at least 5 seconds. The door lock will cycle again.

6. To lock the programmed codes into the receiver, the ignition must be turned off and back on within 20 seconds after programming the last transmitter's code. At that time, all previous codes are erased from the module.

Welcome to 2CarPros. Step one will be to put the system back to the original PCM and BCM. Then contact an automotive locksmith. What you need to do is have new keys made and then the keys registered in the system get erased and the smith will program in the new keys. This isn't a DIY thing as you need to know the security PIN for the security system to enable the keys to be programmed. You also cannot mix the parts in the system as each one is tied to the other. As far as using a tuner, it's a good way to damage the PCM and brick the entire vehicle so a dealer would need to work on it.

Yep, it sounds like the RF chip has gone bad in the key in which case I would use the spare or the system is out of sync and it just needs a hard reboot. Here is a guide that will help us get started:

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.

Cheers, Ken

Okay, the system is run by four fuses (22, 28, 7 and 18) if one goes out the system will not deactivate. Three fuses are in the interior fuse panel one is under the hood PDC. Here is a guide to help you test the fuse and the fuse locations with the security system wring diagrams so you can see how the system works:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please run this test and get back to us.