99 Escort AC will not come on Applied voltage directly to clutch an it works great Low pressure sensor tests good What else could be wrong in the circuit?
The AC switch and the relay. There is usually a temperature
sensor in the passenger compartment ac unit as well.
These cars have something called the Constant Control Relay
Module (CCRM), a box mounted under where the battery sits. Inside
the CCRM is a relay controlling (I believe) the ground side of the
AC compressor circuit. I have had this module fry on 3 different
Escorts, with these same symptoms. I'll bet that's the problem