key fob Woes....
Thread Starter
Racer
Joined: Mar 2005
Posts: 314
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From: Mile Hi Colorado
key fob Woes....
Replaced battery in fob last year, everything worked fine. Started twice a month in winter. Now,upon spring "gettin ready" the fob was dead, I did the rountine of fob learning, and it works ok for a day, then the next day its dead again, does the batt. go dead that fast or am I missing something ? 
thanks for any help...
thanks for any help...
Pro
Joined: May 2003
Posts: 718
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From: Natchitoches Louisiana
fob
Time for a new fob. Look for a bargain on Ebay. I've had 2 of them do that in the last 5 or 6 years. If you wait a while longer, it will get to where it will only hold it's programming for a couple of minutes or so.
Team Owner
Joined: May 2001
Posts: 36,836
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Originally Posted by chazzvette
Replaced battery in fob last year, everything worked fine. Started twice a month in winter. Now,upon spring "gettin ready" the fob was dead, I did the rountine of fob learning, and it works ok for a day, then the next day its dead again, does the batt. go dead that fast or am I missing something ? thanks for any help...
thanks for any help...Robert
Drifting
Joined: Oct 1999
Posts: 1,712
Likes: 7
From: Sunnyvale CA
You might try bending the battery contacts so they put more pressure on the battery. Be careful not to bend too much. What happens is the battery loses contact when the fob is banged against something. This causes loss of sync with the computer. Worked for me.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Another thing that can cause the FOB issue is a bad or weak main 12 Volt battery. 
To check this theory out, pull up the DTC codes that are storred in your DIC. If you see a ton of codes and a whole lot of NO Comms (U 1000) codes, there is a very good chance that you battery is weak.
This happened to my 98 coupe! When you crank the engine, if your 12 volt battery is marginal the battery volyage drops low and some of the MODULES drop off line for a milisesecond or so and if your Remote Function Transmitter (RFT) is one of them, the FOB will loose sync! If you constantly need to re-sync your fob, a weak battery could be the issue. Been there!
See if you have any codes in the RFT module.
BC
To check this theory out, pull up the DTC codes that are storred in your DIC. If you see a ton of codes and a whole lot of NO Comms (U 1000) codes, there is a very good chance that you battery is weak.This happened to my 98 coupe! When you crank the engine, if your 12 volt battery is marginal the battery volyage drops low and some of the MODULES drop off line for a milisesecond or so and if your Remote Function Transmitter (RFT) is one of them, the FOB will loose sync! If you constantly need to re-sync your fob, a weak battery could be the issue. Been there!
See if you have any codes in the RFT module.BC
