Key Fob Malfunction?
Thread Starter
Intermediate
Joined: Apr 2011
Posts: 32
Likes: 0
Key Fob Malfunction?
I got the car back, after repair, and I had to resynchronize the key fob. After awhile the car horn honks and the doors unlock. Sometimes multiple times on its own. I replaced the batteries and resynchronized again. I even tried to rematch the transmitters. I followed the instructions per owners manual. I also have the switch on the key fob switched to off so it wont unlock automatically if I am too close to the vehicle The problem reoccurs. Any suggestions as to what to do? I'm baffled, it seems that it is so obvious I cant see it
Team Owner
Joined: Jul 2006
Posts: 22,132
Likes: 4,155
From: Kannapolis NC
Another guy had the same problem yesterday. He solved it by sliding the passive switch on the fob off/on several times rapidly. That cleans off dust/corrosion and keeps the passive feature from being on even though it's in the off position. If it only fixes it temporarily, you can always buy a 2000 fob that doesn't have the passive feature and it will program to your car.
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
2000 fob works fine om 97-00 C5s
Using one now. My passive FOB did just like you mentioned, PITA locking and unlocking when I got near the car. Any FOB with FCCID ABO0216T will work on any 97-00 C5.
