bm wrote :
"Harry Bloomfield" wrote in message
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bm explained :
Using the correct BMW gubbins, I had to run a single HD cable from the
engine fusebox to the rear, then a data cable from the module to the LSM
which monitors the entire car and trailer's road lighting system.

Totally OT IMHO.

What do you mean off topic?

Or did you really mean OTT (over the top)?
LOL, sorry yes, OTT.

It is a very handy feature, you cannot beat knowing all your lights are
working and working properly. You can go round and manually check them,
they can be working, but on the road one can be flickering - modern
systems will detect that and warn you. The first car I had which had a
basic lamp failure system was back in the 80's.