Keyless Entry/unlocking - Fob Off

[Skullb]

My key works fine once in the car.
The central locking switch on the dash works .
The remote from the key fob will not lock/unlock the car and the front and rear boots buttons also do nothing. The LED's do flash but nothing unlocks.
This key fob has worked fine until about 10 days ago. I have put a new battery cell in and it flashes on all buttons.

On the top of the dashboard in car the Alarm LED is not flashing at all. ( it should flash 5 times per second for radio signal reception and every 2 secs when the car is locked and alarm on.
Preumably this means the keyless entry Antenna is not working .

Any suggestions please ?

[Skullb]

Quick update still no keyless remote operation but the the antenna LED is now flashing as it should when the car is locked.(2 per second)

Help !

[jakeru]

I have one key with the "slow indicator light flash" problem. Can't get the wireless door or trunk/frunk locking/unlocking function on it to work, despite already trying:
* reflowing solder on the printed circuit board,
* replacing the miniature switches, and of course
* replacing the battery.

While I can't offer a fix, I'll be monitoring the thread since I have the same problem still in search of a fix.

My other key does work perfectly, although it required all of above repair steps to get it there. Its indicator light has always flashed at a faster/normal rate.

[particlewave]

Slow flash = dead forever.

Key Transmitter Repair (new switch didn't fix it?)