[flyingspirit55]

Hello, I have an 07 e92 335i that I recently bought, key works fine to start the car but the doors or trunk don’t work with the key fob, we have a new battery in the key, cr2032, checked all fuses, none missing and all have power with key on.

Took the 3rd brake light off to see the diversity antenna, appears okay it has 4 wires, blue/red, red, black and green/yellow.

it has power to it on red and black. No other wires have power while pressing the key fob buttons.

locking doors manually, turn signals do turn on, central locks work fine with center dash button or turning key in the door handle.

my best guess so far is that the previous owner has somehow disabled the locking system with the key fob, probably to keep thieves from getting the frequency and stealing the car, stupid guess but that’s all I got. Maybe the key needs to be reprogrammed? (I tried the press unlock and center button 3 times, same issue) maybe the key fob transmitter is damaged? Would the car still start then?

So where else can I check? Please help.
If anyone has a service manual please message me at kaazx9r@gmail.com

Any help would be greatly appreciated.

[flyingspirit55]

Tried this post there was no solution.

https://www.bimmerforums.com/forum/s...y-antenna-Else