Anyone know which pin on the '85 w123 ACC controller is the power input?

In my no blower troubleshooting, I'm trying to determine if the ACC is even getting juice.

I've replaced the Klima, I've changed the fuse on the OVP and the #8 fuse for the blower. I've also swapped in both control modules behind the glock box with known good units. Blower is new and prior to by birthday last week, was working very well.

The only things I haven't replaced is the OVP relay itself and I don't know if the 1 relay I have under the black box on driver's fender is for the blower.

The relay under the black box is different from the two that I had on the '84, so I don't think I can swap that out for one of those.

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'85 300TD "Puff The Magic Wagon" - Rolling Resto
'19 Mazda CX-9 Signature - Wife's sled
'21 Morgan 3-Wheeler P101 Edition
'95 E300d - SOLD
'84 300TD "Brown Betty" - Miss this one
'81 240D "China Baby" - Farm grocery getter

Look here:

http://userweb.windwireless.net/~jimc/mamerepairs.html#acctest

Should be the same.

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'85 300D Cal 280,000 miles
'14 GLK 350 60000 miles