It's warm enough in San Jose to run the AC but the compressor won't engage. It gets 12V across the dryer pressure switch but that doesn't do it. Battery voltage into the wire at the pressure switch that goes to the compressor doesn't do it either. I measure 18.4 kilo-ohms between the wire at the pressure switch (skipping the pressure switch, of course) and ground. Does this mean that the clutch coils are shot or could it be something else? Can anyone with a 603 with working AC provide a comparable resistance value?

If it turns out to be a bad clutch (sucks because the compressor and clutch were replaced by the PO within the last 5 years) someone please say that replacing the clutch can be done without removing the compressor.

Thanks,
Sixto
95 S420
87 300SDL