The crimps and splices are introduced by the man
installing alarm in my car. He had trouble with the trunklid, and
sensing which way the pump goes, so he obviously had
to access the inner workings of the pump...

One warning, I managed to get the electrical connector divided into
socket and ca. 20 connectors. It was a nightmare to get it together again.
Never release the fasteing grid of the small connectors!

If I can diagnose and fix the lumbar connection from the pump on,
how will I be able to tell the pump to try to give pressure once
again? Fuse? Which one in the trunk? Are the pump trying to always
feed pressure to the lumbar, or is it regulated by electric signal to the
pump?

br,
syljua, W140 S320 1997/8