I have recently fitted a 2-Door "Euroline" Central Locking system to my own car. A few months later, I fitted a friends 4-door Xsara with a 4-door system, following the instructions as I did with my 2-door. After powering up the 4-door system in the Xsara, the passenger door (only) automatically locked upon connecting the power. Despite trying each door lock in turn, both internally and externally (via key) nothing at all happened after the initial passenger locking. Does anyone understand what has gone wrong and how to remedy this problem?
