no tach, no power locks, no OBC???

[Acidblast]

so today i was driving around. i went to a store and parked my car. when i came back the doors wouldn't unlock, the tach didn't work, the intantaneous MPG wouldn't work, and the OBC didn't work.

i checked all the fuses and even replaced the ones related to those parts and it still doesn't work. i'm stumped. any ideas guys?

[Acidblast]

so i just drove the car. the trunk opens now. but the central locks still don't work. also i noticed that the seat belt warning indicator does not come on.

[Aleksey]

Does your car have LMK? Sounds like it's faulty.

[Acidblast]

what's LMK?

[Aleksey]

what's LMK?

Sorry mistyped, LKM. We have those on E34's:

http://www.bmwe34.net/E34main/Maintenance/Electrical/LKM.htm