Key Fob Question
Thread Starter
Instructor
Joined: May 2006
Posts: 131
Likes: 4
From: Virginia Beach VA
Key Fob Question
I have a 2000 MN6 coupe. I only have one fob and it has always worked. Recently, it stopped working so I replaced the battery. It still didn't work. So I checked the owner's manual and reprogrammed it. It worled fine. About an hour later, it stopped again. Now I have to reprogram it just about everytime I use it. Now it loses the code within a matter of minutes?? Any ideas? Thanks.
Pro
Joined: Apr 2005
Posts: 666
Likes: 5
From: Mt. Pleasant SC
If you've already performed the "Learn Key Fob" procedure, then give the resynchronize procedure a try. It's quick and easy. While sitting in your car or standing near with your key fob, press and hold the Lock & Unlock buttons simultaneously. Hold them for a 7-count until your horn toots. Your key fob has just ben resynched and that may fix your problem. If you have to continue to reprogram (resynch) then you might consider a new FOB.
Safety Car
Joined: May 2000
Posts: 4,408
Likes: 61
From: Centerville OH "If we weren't all crazy we would go insane"
CI 3-4-5-6-7 & 9 Veteran
St. Jude Donor '08
Is the battery in the FOB loose? I had that problem when I changed my battery once. The little clamp that holds the battery worked loose.
Race Director
Joined: Dec 2002
Posts: 10,233
Likes: 21
From: Baltimore suburbs Maryland
Could be the FOB itself. The FOB on my car had similar symptoms. I thought it was the batt, changed it. It worked then stopped working, then started double clicking every function. I thought it may have been the receiver. I bit the bullet and ordered a new FOB ($90) and reprogrammed it. Now, the new FOB works 100% of the time.
If the FOB is original, it is almost 7 years old now. I'd speculate it is the FOB itself.
If the FOB is original, it is almost 7 years old now. I'd speculate it is the FOB itself.
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
key fob
Both my fobs went south. First they lose sync and can be resynched by holding lock and unlock at the same time for over 7 seconds till the horn beeps. If they KEEP LOSIING SYNC with NEW BATTERTIES, time for now fobs. Got some on fleebay for abt $50 or $60 each. You need to get them with FCCID AB00216T. (97-99) passive fobs will WORK on a 2000 without the passive fn(PITA ANYWAY) or a 2000 fob will work,
LATER FOBS WILL NOT WORK. Make sure you get FCCID AB00216T and that the seller WILL TAKE BACK A FOB THAT WON'T PROGRAM OR HOLD ITS SYNC.
BIGHANK
LATER FOBS WILL NOT WORK. Make sure you get FCCID AB00216T and that the seller WILL TAKE BACK A FOB THAT WON'T PROGRAM OR HOLD ITS SYNC.
BIGHANK
Drifting
Joined: Oct 1999
Posts: 1,712
Likes: 7
From: Sunnyvale CA
Carefully pry the contacts so they put more pressure on the battery. Bet this solves the problem. I haven't had a problem in 5 years.
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Heel & Toe
Joined: Jan 2006
Posts: 24
Likes: 0
From: Russellville Ky
Possible solution:
My fob had been misbehaving for a couple of weeks. I'd reprogram it and it would work for an hour or two and stop. I did this over and over again I changed batteries, I cleaned the contact points with a Q-tip and alcohol, and I checked all the advice on the forum . One gentlemen showed a picture and said to cut the lead going to the bell shaped device (I think it might be the antenna) on the printed circuit board. I noticed, that on my circuit board, the solder on the underside of the bell shaped device had broken. I simply stuffed a little bit of foam on top of the bell and closed the cover. I reprogrammed it and it's worked fine for the past two weeks. You might give that a try. It's a lot cheaper than buying a new fob. I would re-solder it if there was more space to work with, but I'm afraid of damaging the fob now that it is working.
My fob had been misbehaving for a couple of weeks. I'd reprogram it and it would work for an hour or two and stop. I did this over and over again I changed batteries, I cleaned the contact points with a Q-tip and alcohol, and I checked all the advice on the forum . One gentlemen showed a picture and said to cut the lead going to the bell shaped device (I think it might be the antenna) on the printed circuit board. I noticed, that on my circuit board, the solder on the underside of the bell shaped device had broken. I simply stuffed a little bit of foam on top of the bell and closed the cover. I reprogrammed it and it's worked fine for the past two weeks. You might give that a try. It's a lot cheaper than buying a new fob. I would re-solder it if there was more space to work with, but I'm afraid of damaging the fob now that it is working.
Le Mans Master
Joined: Feb 2006
Posts: 5,267
Likes: 40
From: Phoenix AZ
Many times the fob just goes bad. I assume the chip is damaged somehow. I fix the machines that make microchips for a living. So I tried to fix my last bad fob....everything from soldering a new battery in to cleaning every part of the pcb. Nothing worked, just replace it. You can order a new one for about $90. Trust me just get a new one and it will work every time.
2000 is a special fob for only that year.
2000 is a special fob for only that year.