My schematic came from the Service Library Manual 83-606. It's not that helpful.

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles

Oh..I see..

Well, we kinda hijacked this thread from Bob, but I think he doing something for the holiday as I have not gotten a reply from him in regards to if he would like me to jpg the schematic to him.
I have it ready to go, so as soon as he replies , I can also send it to you ..it is for his "92 version 400/500E, but I think it will help you out too.
Let me see if he replies..

Thanks. I'm sorry, Bob. Look at what you've attracted--some other guy with a troubled 400E. I would love a current jpg copy. Thanks again.

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles

Very good..
If he does not return, I will get one to you either way.