new and old key fobs wont program...
Thread Starter
Racer
Joined: Nov 2005
Posts: 350
Likes: 11
new and old key fobs wont program...
i bought new fobs, new batteries for new and old, and replaced the battery in the car, and the fobs (which WERE for my car) refuse to sync. please offer a suggestion on the fix' 
or buy these and suggest a good alarm with keyless entry......
or buy these and suggest a good alarm with keyless entry......
Pro
Joined: Jun 2004
Posts: 656
Likes: 5
From: Wright City MO
Originally Posted by lt1rx798
i bought new fobs, new batteries for new and old, and replaced the battery in the car, and the fobs (which WERE for my car) refuse to sync. please offer a suggestion on the fix'
or buy these and suggest a good alarm with keyless entry......
or buy these and suggest a good alarm with keyless entry......
Pro
Joined: Jun 2004
Posts: 656
Likes: 5
From: Wright City MO
Originally Posted by lt1rx798
please inlighten me.....
Key Fobs
There are basically two different kinds of key fobs, and they are not compatible with each other.
97-00, but 00 does not have the Passive Lock feature
01-04
Both remotes use a CR2450 coin type battery. I found replacement batteries at Office Depot. To replace, use a coin to wedge between the seam, and twist.
Ref: Service manual, page 8-747.
Quote:
Originally Posted by vette747
Fob programming
1-Turn the ignition to RUN
2-Turn the radio off
3-Press the RESET button in order to clear any IPC warning messages
4-Press the Option button on the DIC until the IPC display is blank in order to enter the program mode
5-Press and hold the Reset button for 3 seconds
6-Press the option button until FOB Training message is displayed
7-Press the Reset button in order to begin the programming sequence.
8-Simultaneously press and hold the lock an unlock buttons on the first transmitter for 12 seconds. The IPC will indicate when that transmitter is programmed and when to proceed to the next. Repeat this step for each transmitter.
Hope this helps.
Thread Starter
Racer
Joined: Nov 2005
Posts: 350
Likes: 11
mine have passive(new and old), and i tried to train them just like the card that came with them said which is the same as above. the only diff. was that the radio was on. do you really think that will matter? ill try it anyway!
Pro
Joined: Jun 2004
Posts: 656
Likes: 5
From: Wright City MO
Originally Posted by lt1rx798
mine have passive(new and old), and i tried to train them just like the card that came with them said which is the same as above. the only diff. was that the radio was on. do you really think that will matter? ill try it anyway!
Someone out there should be able to chime in and answer the question.
Last edited by Slider-01; Feb 9, 2006 at 09:51 PM.
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Burning Brakes
Joined: Oct 2005
Posts: 924
Likes: 161
From: Atwater CA
2024 C7 of the Year Finalist - Unmodified
Originally Posted by ThePizzaC5
What is this about a battery in the car? Could someone enlighten me? Thanks-
Instructor
Joined: Jul 2005
Posts: 206
Likes: 0
From: Cussing at my car somewhere
Originally Posted by dataporter
I assume he's talking about the regular old 12v car battery, you know, Optima or Die Hard, under the hood on the passenger side in front of the window...
Meh, I read it somewhere, I thought. 
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
There are two procedures to make the FOB's work; FOB Training and FOB RE-Sync. You must train your fobs first. The procedure is in the owners manual. Or you can find it in the TECH TIPS section. You can train up to THREE FOBs at one time. If you only have one FOB, you can train just that one. Each FOB has a battery inside. It is recommended that you replace the FOB batteries if you are having issues with transmitting or they just quit working and refuse to sync or train.
If your FOB's just quit working after you Re-TRAIN them, you can do a (RE-Sync) by pressing LOCK and UN-LOCK at the same time and hold them until the horn toots. If you continuously loose sync with your fobs, follow the info below!!
If your 12 VDC main battery is weak, when you crank your car the battery output voltage will dip LOW and cause the BCM to shut down for a millisecond or so and you will loose sync with your FOBs. Trust me on this one!!!
Bill
If your FOB's just quit working after you Re-TRAIN them, you can do a (RE-Sync) by pressing LOCK and UN-LOCK at the same time and hold them until the horn toots. If you continuously loose sync with your fobs, follow the info below!!
If your 12 VDC main battery is weak, when you crank your car the battery output voltage will dip LOW and cause the BCM to shut down for a millisecond or so and you will loose sync with your FOBs. Trust me on this one!!!
Bill
Thread Starter
Racer
Joined: Nov 2005
Posts: 350
Likes: 11
is it possible for the bcm to stop receiving transmission from the fobs?
i have a brand new red top in the car, and new batteries that i put into new fobs. i also replaced the battery in the old one. im know im following the proper proceedure, but still nothing. the dic never changes from "traing first fob", and i dont get a horn chirp.
i have a brand new red top in the car, and new batteries that i put into new fobs. i also replaced the battery in the old one. im know im following the proper proceedure, but still nothing. the dic never changes from "traing first fob", and i dont get a horn chirp.
