There are 2 connections that are very simular at the central locking system pump. One feeds info to pump from trunk & the other one is for info to alarm system from trunk lock. They might be crossed!! The doors use electrical micro switch in door handle to arm alarm but the trunk info goes thru central locking system. You need to look closely at wiring diagram to understand how it works.
MERCEDES BENZ MASTER GUILD TECHNICIAN
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. Shopforeman
190E 2.3 ITS RACECAR
1986 190E 16V
[This message has been edited by M.B.DOC (edited 07-14-2000).]