Technical T-Jet 120 CV Emotion, windows don't open or close from key fob when lock or unlock

[NKVD1934]

Greetings to everyone,

suddenly my key fob stopped working, it doesn't locks or unlocks, ignition works without issues and I disconnected the negative pole for a couple of hours to see if it lost it's synchronization with the car receiver.


The key fob is dead I checked it, it doesn't sends signal at all, even with new battery. The remote control of the car alarm works without issues.

But after connecting the battery again, the windows when unlock the car don't open when I'm keep pressing the unlock key of the remote control and of course they don't close when I keep pressing the lock key.

How should I fix this?

 

[NKVD1934]

For anyone who wants to know.

I've replace the pcb with one other second hand with the same revision and I solder the transponder chip to the "new" pcb and problem solved.

The antenna of my key fob was malfunctioning!