Park Avenue V6-3.8L VIN K (1995)
A/C Signal: Description and Operation
A/C Refrigerant Pressure Sensor
PURPOSE
The A/C head pressure switch provides the Powertrain Control Module (PCM) with information regarding A/C high side pressure.
OPERATION
The switch opens at 1448 kPa (210 psi) +/- 10. When the head pressure switch interrupts the ground at PCM CKT 380, the left fan should run at
high speed.
