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Key Fob Problems...

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Old Jun 12, 2009 | 03:53 AM
  #1  
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Default Key Fob Problems...

ok so far ive tried, 2 transmitters, one that came with the car and one of a buddy of mine that needed a new batter, new batteries in both, i tried to "Match" the 2 key fobs to the car and ive tried Resynchronizing the fob also. Ive also checked fused 27, 33, and 34 and they were all good. car runs on a daily basis pretty much and battery is a yellow top optima and is good. i just bought the car a month ago and the previous owner said it worked for him, back when he first got it, if that matters. no tire pressure sensors present as ive seen some people refer to those.

so what do i try next??!!
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Old Jun 12, 2009 | 08:06 AM
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Never heard if them not working with a good battery and re setting them.Works for me everytime.
How are you setting the transmitters?
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Old Jun 12, 2009 | 09:02 AM
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St. Jude Donor '08-'09-'10
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Two things. First is that you're using the correct year fobs. The 97-99 fobs have the on/off switch for the passive keyless entry system. The 2000 fobs transmit on the same frequency as the 97-99 but do not have the switch. The 01-04 fobs operate on a different frequency and will not work on a 97-00 car.

If you replaced the battery and the fob will not register with the car most likely the fob has died. Buy a new fob (Gene Culley at gmpartshouse.com seems to have the best prices) or do a search on here for the thread that details how to repair a dead fob.

Here's the link to the repair post:

http://forums.corvetteforum.com/c5-t...em-solved.html

Last edited by Mark C5; Jun 12, 2009 at 09:04 AM.
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Old Jun 12, 2009 | 09:42 AM
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I have had a total of 5 fobs in 75,000 miles on our 99 so IMO the fob is not very reliable.
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Old Jun 12, 2009 | 10:07 AM
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Originally Posted by Mark C5
Two things. First is that you're using the correct year fobs. The 97-99 fobs have the on/off switch for the passive keyless entry system. The 2000 fobs transmit on the same frequency as the 97-99 but do not have the switch. The 01-04 fobs operate on a different frequency and will not work on a 97-00 car.
What year is your car and what are the part numbers of your FOBs?
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Old Jun 12, 2009 | 11:04 AM
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so what do i try next??!![/QUOTE]

Check and see if you have any communication issues with the RFA unit. This one U1176 Loss of Communications with RFA. B\G
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Old Jun 12, 2009 | 11:59 AM
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You've probably already done this, but have you checked/replaced the battery inside the fobs themselves?
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Old Jun 12, 2009 | 12:08 PM
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one of the fobs came with my 00 and the other was from my friends 99. so i assume they are the correct ones
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Old Jun 12, 2009 | 12:13 PM
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Originally Posted by Blown 346
How are you setting the transmitters?
Originally Posted by ragu1585
i tried to "Match" the 2 key fobs to the car and ive tried Resynchronizing the fob also..
Originally Posted by berryj
You've probably already done this, but have you checked/replaced the battery inside the fobs themselves?
Originally Posted by ragu1585
ok so far ive tried new batteries in both.
...
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Old Jun 12, 2009 | 12:14 PM
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Originally Posted by BigGun
so what do i try next??!!
Check and see if you have any communication issues with the RFA unit. This one U1176 Loss of Communications with RFA. B\G[/QUOTE]

thanks for that info ill try that asap

ill also try goin to the dealer to get them to test the fobs
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Old Jun 12, 2009 | 01:56 PM
  #11  
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Haha, before getting to the year , I was guessing its a 2000. Those fobs just plain die, and you will need a year 2000 specific fob. Trust me on this one.
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Old Jun 12, 2009 | 02:52 PM
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Any fob from 97-00 will work. They all use the same frequency. 01-04 use a different frequency.
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