Finally got all the leaks fixed on the TE, and now the compressor will not activate!

Here's what I have done:

Compressor operates fine jumpered at the KLIMA (so not clutch problems, etc).

No voltage at the pressure switch, either side (i.e. control unit not turning compressor on).

All temp sensors within spec

Used Pushbutton unit doesn't work either (but no absolute guarantee it's good either). All other functions work fine.

Continuity between pushbutton control and pressure switch, but have not check for ground on the wire yet -- shows 140 mV pretty consistantly).

I'll be making a code pulse reader this weekend to check for stored codes.

Any thoughts other than a bad pushbutton unit? I don't believe I have two with the same defect, and yes, I unplugged the aux water pump for the second one (shouldn't be on in 98 F degree weather anyway).

thanks -- this one is driving me nuts and my mother is cooking in the car....

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!