Thread: w126 A/C diagnostics - where do I start?
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  #19  
Old 07-21-2007, 02:10 PM
BrettS BrettS is offline
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Join Date: Oct 2006
Location: Fairfield, PA
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Quote:
Originally Posted by BrettS View Post
Things just keep getting more and more strange. I just checked slot #4 again, and now it shows no voltage. But the compressor is still not functioning.

I then checked for voltage between slots #1 and #2. At idle I had about 9v. But the voltage dropped as engine speed increased.
I just ran through the checks again, and this time the results stayed the same. No voltage on #4. Between slots 1 and 2 there was 9.5V at idle, and went DOWN with increase in RPM.

What does this indicate?

-Brett
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