Larry,

Yes I tried shorting the connectors at the low pressure switch and I have used a volt meter, but still no voltage.

I also checked the evaporator temp regulator and had only a little more than 4 volts there. I am assuming it should be 12 volts , not 4.

__________________
1981 300D 147k
1998 VW Jetta Tdi 320k
2001 Dodge Ram 2500 141k
1979 300D 234k (sold)
1984 300D "Astor" 262k(sold)
Mercedes How-To and Repair Pictorials
I love the smell of diesel smoke in my hair