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mmisch

Active Member
Oct 22, 2022
102
19
The Netherlands
Hi all,

I've been trying to figure out what's causing my following problem but i can't find anything.

Suddenly my selective unlock won't work anymore on my Seat Leon Mk1 2005.
The car receives the signal, it blinks and you can hear the doors unlocking, but all the other 3 doors won't unlock when clicking a second time (or 3rd, 4th, 5th time etc.🙄)
If I try to do the same thing with the key in the keyhole (so not using the remote key) and it unlocks the rear doors after twisting the key twice.
All doors also unlock when unlocking the doors via the button inside on the drivers door near the mirror switch.

I tried the following things (and none of these worked!):

- disconnecting negative cable from battery, and putting it back
- removing fuse 14 for a few minutes
- replacing the key battery
- replacing the key fob motherboard and reprogramming it

In VCDS I tried changing the coding to 00259 (selective unlock disabled) and then all the doors opened.
Then putting it back to 00258 (selective unlock enabled) and all other 3 doors won't open again when pressing 2 or more times.

Vcds correctly shows all doors opened/closed status + locked/unlocked correctly. Also no faults in the CCM (group 46).

And with all the locks working after putting the selective unlock on disabled, i can almost assume that all the doorlocks are working correctly.. (right?)

The key, the CCM, the programming worked since i had this car and i own this car now like 4 years

Yes, i could just disable the selective unlock and be done with it but I do like this feature and i just want it working again.

Anything that i might have missed?

Thanks in advance

(Ps, I know the rear hatch also unlocks with selective unlock, I just said "all 3 doors" to make it easier)
 
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