I have NO blower operation in any mode on my 82 300SD (including in DEFROST)... I tried a different CCU, but it has the same problem. After that, I checked something I should have checked first.....

I have NO 12 VDC on either of the connectors that connect to the CCU (the 2 twelve pin connectors, one each, left and right side of the CCU).

I know my blower motor is good, she works well when hot wired..... The fuse for the blower motor (#11) is good as well.

How does power get from the fuse to the fan? I know it goes thru th CCU and the blower motor control unit, but I'm not sure where to start to isolate it.

I can read schematics well, but I don't have any.... does anyone have a wiring diagram they could post?

Thanks

Phil