United Bimmer Community - BMW Forum - View Single Post - E39, 1997, 520i, LCM, K-BUS, Low instrument cluster, no lights and turn signal indica

**bemwa** · 03-06-2012, 10:04 AM

I don't think there is the problem. I think there is no kbus wire to the trunk lid. With the exception of the reversing light all the lights on the outside work ok. Reversing light is triggered via telegram over kbus to the LCM.
As I said something must be wrong with kbus, either on the LCM side, KOM instrument cluster side or something disrupts the bus.
I think signal level peak to peak voltage is to low, but I have no way to confirm that.

03-06-2012, 10:04 AM	#5
bemwa Name: bemwa Title: United Newb Status: Offline Join Date: Mar 2012 Location: Earth User not setup in Rate My Car. Click here to set it up. Your Ride: E39 520i	I don't think there is the problem. I think there is no kbus wire to the trunk lid. With the exception of the reversing light all the lights on the outside work ok. Reversing light is triggered via telegram over kbus to the LCM. As I said something must be wrong with kbus, either on the LCM side, KOM instrument cluster side or something disrupts the bus. I think signal level peak to peak voltage is to low, but I have no way to confirm that.