[expl0de]

Hello, today I checked my car with ISTA D and got this fault code:

FEM 804113 aerial in passenger compartment, rear: line disconnection.

It comes back after deleting.
Didn't find any online info which aerial is this. My GPS,Radio and bluetooth work fine. I recently disassembled the rear shelf to get rid of rattles, also the third brake light was removed for tint installation. I checked fem wiring description and found no antennas, except these for comfort access, but I don't have the function.
Can anyone help with ideas how to find out where is the problem?

[expl0de]

So I fixed the issue.
I ran a test procedure in ISTA-D and it showed the antenna for keyless start in the rear of the centre console was disconnected. I removed the back vents cover (had it done before for wireless charger retrofit), but there was no antenna in my car.
Seems the lci models and maybe also late pre-lci's, have 3 antennas for keyless start - one in driver's b-pillar, one under gear lever and one in the rear. Early production cars have only two - for the front seats accordingly (If I leave my key in on the back seat the car doesn't start and BMW probably decided to fix that issue).
Vehicles with comfort access have additional antennas in boot, rear bumper and side skirts for keyless entry.
The problem was, some time before, during LED lci fog lights retrofit my FEM was VO coded with lci production year and that caused the error plus another one for wrong version of rain/fight/condensation sensor(which worked without problem, by the way).
After reverse VO coding the errors are gone. And FDL coding came into play.

[Enel]

"After reverse VO coding the errors are gone. And FDL coding came into play."

Can you a little bit explain how did you do this part? I have the same issue, i can't get rid of those fault codes.

[fe7565]

Originally Posted by Enel

"After reverse VO coding the errors are gone. And FDL coding came into play."

Can you a little bit explain how did you do this part? I have the same issue, i can't get rid of those fault codes.

I am pretty sure he VO coded (Esys) the FEM (ECU only) with the original zeitkriterium (manufacture date) back from the new date. Then he used Esys or Bimmercode, etc to code the individual (FDL) functions/options.