99 escort a/c clutch wouldn't engage. Finally got a wiring diagram. Checked
the "constant control relay module". I had 14 volts on pin 21 and 22 with
a/c off. When a/c is turned on it should put a ground on pin 22. This will
engage the relay. Pin 21 should now be connected to pin 23, putting voltage
on the blue/white wire of the compressor clutch.
I took apart the CCRM by drilling out the rivets holding it together and
found a bad soldering job on one of the pins of the relay. Got out the
soldering iron and everything works like a charm.
Thanks again for the help.
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