Paul,

I test my unit by applying 12 volts momentarily to the unit. Using a battery,
touch the unit's contacts, to see it move. It has a small motor that operates a
lever. Motor should run, actuator will move. Then, reverse the polarity of the
battery and test the unit again. The actuator should now move in the opposite
direction.
Unfortunately, that's all the help I can be. When looking at the wiring
diagrams, I can't read the wire numbers because the print is too *&%$ small, so
I can't tell you about the switch with certainty, or anything else. Don't have
a switch out of circuit otherwise I would test it. Still, I'll bet that the
switch is designed to do what is described above- reverse the polarity of DC to
the unit. So, hope this helps.

--- In BiturboZentrum@yahoogroups.com, "paul.nolan14" <dpmotorcycles@...> wrote:
>
> HI Guys, looking for some help here before i can finishing putting the rest of
the interior in my 430, i cant get the central locking to work, all connection
have been checked and cleaned and a new DOOR ACTUATOR CONTROL UNIT has been
fitted but still nothing, the fuse is also ok. is there away of testing the door
servo's? or any other part of the system, any suggestions would be great, thanks
for any help in advance.
>
> regards paul
>