There is a run capacitor across the S and R terminals of the compressor. The electrical schematic diagram of the compressor shows a resistor (heater?) between the electrical coils of the S and R terminals.
The resistance between the C and R terminals is 2 ohms. The resistance across the S - R terminals (and the run cap) is between 1-4 megohms. I take it this means my run cap is not shorted. Based on the high resistance, is the S terminal open or the S coil burned up?
I have not measure the voltage to the compressor while the relay is engaged, so one of the relay contacts may be bad...but I thought I would try some meter probing first...