Volkswagen Passat 1995 Official Factory Repair Manual page 3778

Central locking, repairing (Sedan)
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.BD01.57.2
At the time one of the locking knobs is
pulled, an audible locking sound must be
heard (safety solenoids are blocking the
locking rods).
The doors are locked and secure, the rear lid
and the fuel filler flap are locked.
- Repeat test starting with passenger's door.
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12/7/2004