Central Locking Troubleshooting problem

[les_garten]

I'm having problems with my locking system. I think most of my issues stem from a LOT of water in the floorboards for a long time.

I had a bad pump. I got a new "used" pump. This one has a white bottom instead of the black bottom like my original.

Don't know if that is a big issue or not.

I was running down the electrical diagnostics in this PDF:

http://www.ps2cho.net/downloads/MB%2...sis/80-104.pdf

On page 3 there is an actuator check for the doors in the unlocked position. Mine has 1.7v in A and B and .07 v in position C.

Pretty much a fail.

My locks don't Lock/Unlock at all. The pump does not run at all.

Where would be the next place to look? I don't believe all 3 actuators went bad at the same time, so it's something Common to all three. I have >12 v at the 2 prong power connector.