Odd problem with passive entry system
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
Odd problem with passive entry system
Application: 99 corvette convertable
Doors will lock/unlock with the Fob and with the door controls. When I walk away with the FOB, the horn honks, but the locks do not function at all.
Any ideas?
Doors will lock/unlock with the Fob and with the door controls. When I walk away with the FOB, the horn honks, but the locks do not function at all.
Any ideas?
Veteran
Joined: Jan 2000
Posts: 2,082
Likes: 1
From: Louisville KY
Are you using the remote with the passive switch on or off? That's not important. You can try sliding the passive switch back and forth quickly several times. It will clean the contacts and hopefully take care of the problem.
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
what's strange its the car honks when i walk away like it normally would, but it just doesn't lock, however it will respond to "active" commands.
Team Owner
Joined: Jul 2006
Posts: 22,163
Likes: 4,171
From: Kannapolis NC
Are you sure it's not locking and then unlocking when you walk back up to the car? If the horn honks, that means it's receiving the signal from the remote. I don't see any difference in the signal from the remote lock button and the passive feature.
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
To test, i walked away with the keys until i heard a honk, set the keys on the ground and walked back to check. The door was unlocked, but the car would go into alarm mode when opened.
Team Owner
Joined: Oct 2006
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From: Title town, Champs live here.
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19
The passive/active system on my 99 was a crap shoot at best. Cleaning contacts and a new battery is helpful, but not always a fix. GL I just turned mine to passive, always.
Tech Contributor
Joined: Aug 2008
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From: Oak Hill Virginia
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Team Owner
Joined: Jul 2006
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From: Kannapolis NC
You got me on this one. I can't see anything that would let the horn honk but doors not lock if they are locking with the remote lock button. Same receiver, same wiring. If you find it, please post back what it was.
Try this, have someone else walk away with the remote and see if they are locking and then unlocking very quickly. If so, maybe the fob is being detected quickly after the lock and then unlocking the door as soon as it locks.
One other thought, you don't have a second fob near the car that it could be detecting and unlocking the car do you?
Try this, have someone else walk away with the remote and see if they are locking and then unlocking very quickly. If so, maybe the fob is being detected quickly after the lock and then unlocking the door as soon as it locks.
One other thought, you don't have a second fob near the car that it could be detecting and unlocking the car do you?
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
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From: Spring Texas
St. Jude Donor '08
Probably really obvious, but are you sure the door is locking properly just using the lock button and not the passive entry function? Door locks failing are one of the more common problems with C5's. Try turning off the passive entry function with the car unlocked and lock the car using the lock button on they key fob then check to see if it actually locked...
it's a possibility, there are 2 FOBs on the keychain. I will try just a single one keeping the other out of range.
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
I'm curious too because my buddy's new (to him) '01 is doing the exact same thing!
http://forums.corvetteforum.com/c5-t...post1573620170
Melting Slicks
Joined: Feb 2009
Posts: 2,857
Likes: 234
From: SW Nuh Hampsha
2018 C5 of Year Finalist
Mine was acting strangely, too, after having the battery disconnected for the winter. The owner's manual says to re-sync the fob to the car by standing next to it and holding down the LOCK and UNLOCK buttons on the fob for about 7 seconds. The horn will honk to let you know it's synced.
This procedure worked for me.
This procedure worked for me.
Tech Contributor
Joined: Aug 2008
Posts: 2,902
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From: Oak Hill Virginia
I'm curious too because my buddy's new (to him) '01 is doing the exact same thing!
http://forums.corvetteforum.com/c5-t...post1573620170
Last edited by cdkcorvette7; Apr 2, 2010 at 01:13 PM.
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
I was wrong, its a 2000. But still it should not have it. Best I can figure is it's a transitional car. I cracked open the FOB and re-paired it but it still does not lock when it honks when I get out of range with passive enabled.
