The locks on my '87 have been failing and I'm finally getting around to
fixing them. I could use some help with something I must be
missing. History: Locks all work fine. Passenger lock starts
to not activate except manually.  Then slider lock just jams
and have to force it open from inside (pain).  Hatch lock
stops working electrically. Drivers door lock jams open
and can't be locked manually. Time to figure it out. Get
out the Bentleys. Doesn't look there's a specific fuse or a
dedicated relay for the central locking. I take drivers door
panel off, take motor out, take it apart, clean and replace
everything. Now it works manually so I can at least
lock the door. Same with slider lock. Take mechanism
and lock out, clean, reset and re-install. Lock works manually.
I can't find why they don't work electrically anymore. I measure
about a half volt at each of the connectors to the motors. Is there
a controlling motor? Any advice would be helpful.

Thanks  in advance!

Jeff H.
'87 Westy (North Carolina)