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2002 trailblazer keyless entry unable to reprogram fobs
2002 trailblazer keyless entry will not program the transmiters.I can get it into programing mode but nothing happens after that. i have just changed the batteries in both transmitters
Thanks for the reply matney68. where would the liftgate module be located at. My local dealer checked my transmitters check out fine. I would hate to think that i have to spend $300+ to resolve this issue. Any help will be helpful thanks.Thanks for the reply matney68. where would the liftgate module be located at. My local dealer checked my transmitters check out fine. I would hate to think that i have to spend $300+ to resolve this issue. Any help will be helpful thanks.
AnonymousMar 18, 2014
Keyless entry will not work at all on a 2002 chevy trailblazerKeyless entry will not work at all on a 2002 chevy trailblazer
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Re: 2002 trailblazer keyless entry unable to reprogram...
You should be able to have them tested at parts department at chevy dealership and I dont think they will charge ya. I may be wrong but they can test them.otherwise it could be a unit called a liftgate module is what recieves signal
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The security system on Toyota products are added by the distributor in your region. Many of those security systems will not allow more than 4 key fobs to be programmed into them. Have you owned this vehicle since it was new? Have you tried to program more that 4 key fobs into it? Have you tried programming it more than 2 times? If you security system has had more than 4 key fobs programmed in then the only way to get it to reprogram is the replace the security unit with a new one. I found this out the hard way and had to replace mine in my 2000 tundra.
Depending on the specification of your vehicle, the FOB generally serves one (or both) of the following functions:
1) Communicate with the vehicle's Keyless Entry system (operates central locking). 2) When inserted into the ignition, the transponder within the key will communicate with the vehicle's Body computer (BEM) to validate entry, before disengaging the immobilizer - allowing the vehicle to start.
When the key fob fails, you may lose functionality of the above systems.
Keyless entry failure - usually due to flat battery in the fob. Reprogramming of keyless entry can be done without dealership assistance.
Transponder/Immobilizer failure - this requires the key fob to be re-programmed by your local dealership.
The only way to program them is with a scan tool so you'll need to visit your local dealer to have it done. Here is how it is done.
Install a scan tool.
Use the scan tool in order to access programming: Vehicle Control System/Computer Integrating System/Module Setup/BCM/Program Key Fobs.
Press the START soft key on the scan tool.
Important: The scan tool must stay connected until all of the transmitters are programmed.
Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of 5-10 seconds, the scan tool will indicate that the transmitter is programmed.
Repeat the previous step in order to program up to 4 transmitters.
Remove the scan tool.
Operate the transmitter functions in order to verify correct system operation.
Thanks for the reply matney68. where would the liftgate module be located at. My local dealer checked my transmitters check out fine. I would hate to think that i have to spend $300+ to resolve this issue. Any help will be helpful thanks.
Keyless entry will not work at all on a 2002 chevy trailblazer
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