Flat car battery and now remote has lost its connection

[chrisdavisberry]

Hi, 

I had a flat battery on my Chrsyler Grand Voyager 2.8 Diesil (2006). 

It wasnt totally flat but the alarm was sounding and would not disable when pressing the remote. 

I had to disconnect the battery to stop it. I then removed the battery to charge inside. 

After reconnecting the next day the alarm sounded but switched off when I put the key in the ignition and start the car. 

But the issue is that my key is not now synced.  I opnly have one key. 

NOTE

This did happen a few years ago when i had a battery drain. Eventually it resynced. I think by disconnecting the battery, charging and reconnecting - but i cant remember what steps resynced the remote. Althjough i think I may have had the key in the ignition when i reconnected the battery and possibly have double clicked the remote before starting the car... just a guess though really. 

I only have one remote/ one key. 

The car starts and runs fine. Just no remote which is a hassle. 

Does anyone have a recommendation about how to resync. I've search other posts and looked online but not found a solution that works yet. 

Currently the car battery is removed (has been for the last few hours)  and i'm hoping i can reset once reconnecting the battery. 

Any help is huigely appreciated. 

Thanks

Chris

 

 

Edited November 20, 2023 by chrisdavisberry
to add imag of key

[bignev]

Hi Chris!

If you've been lucky it will have stopped being an arse an started talking again, but if not, I was going to suggest removing the IOD Ignition Off Draw fuse, but on thinking about it, that has effectively been done by taking the battery off...... 

Let us know please!

[chrisdavisberry]

Hi Nev, 

Sorry i missed your original reply. Thats for getting in touch. 

The issue is still going on and still no joy.  Reconeecting the battery made no difference. But i have no idea what sequence i need to foillow to resync the fob... even it the car was in a state to accept it. 

I tried removing the fuse you mentioned a couple of times... once for around 30 minutes and the next time for about 8 hours. 

The situation at the moment is every time i unlock the car (key in door) it sets the alarm off until i put the key in and start it. Then the alarm stops. 

I have no idea what the correct sequence/ key dance should be to get it to resync the fob. Ive tried various but I suspect ther eis one cmbination that works and ive just not found it. 

Any ideas would be really appreciated. 

 

Thanks again

Chris

[bignev]

Ah, I'm at a loss there, very odd.

I reckon you need a proper auto locksmith, and they could cut you a second key at the same time. If you have the one fob, get a second hand one off ebay or wherever and they can code it to the car at the same time, I had one done for ours years ago. They will need a code from Fiat Chrysler, so they have to be a good company.