Viper GTS V10-8.0L VIN E (1999)
Refrigerant Pressure Sensor / Switch: Description and Operation
Dual Pressure Cut Off Switch
DUAL PRESSURE CUT OFF SWITCH
The Dual Pressure Cut-Off (DPCO) Switch monitors the refrigerant gas pressure in the A/C system. The DPCO is located on the filter-drier.
When ever the pressure drops below 196 to 248 kPa (28.4 to 36 psi) or exceeds 2544 to 3137 kPa (369 to 455 psi) (which could damage the
compressor), the DPCO will open. The A/C switch sense circuit will open to the HVAC control causing the PCM to turn off the compressor clutch
relay. The DPCO is a sealed factory calibrated unit. It must be replaced if defective.
