Remote Locking not working

[EODguy]

Originally Posted by X5chemist

Do you have a scanner to read codes? Some advance scanners can read key numbers. Keys are 1-10. If all 10 keys get used up, a module replacement is necessary.

I don't know how they did it but the key place here did 2 keys for me and they both show as key 10...

Hopefully someone here knows how to do that and can explain it!!

Sent from my SM-A528B using Tapatalk

[X5chemist]

Interesting. Have you checked an EWS module is installed? I wonder if they removed it and reprogrammed the DME? Did they just cut keys?

[UK_3.0D Sport]

Originally Posted by bmw540san

In my case and with the very same symptoms and after checking all the usual culprits, I discovered that I had broken wire under the rubber "snake" in the right rear upper corner

Finally got some more time to pursue this issue and although I had power just fine on the wire you found broken above I wasn't sure about the wire on pin3 at the FZV amp as it reacted to the key press but didn't show voltage without a key press.
So I bypassed the whole wire from FZV to GM3 with a temporary wire through the car interior. No response... Tried the key resync that I have tried a million times before and the locks cycled and all working!

I removed the rubber boot and some headliner but no exterior signs of a wire break. I must have disturbed something though as when I removed the bypass wire the remote still works.

I will monitor the situation but if it stops working again it won't be too difficult to splice in a repair section.

So a big thanks to bmw540san and thanks all for all your input.