LeSabre V6-231 3.8L VIN L SFI (1992)
A/C Signal: Description and Operation
A/C High Pressure Cut-Out Switch
A/C System Circuit Diagram (CJ2 A/C W/Climate Control)
W/CLIMATE CONTROL
A/C System Circuit Diagram (C67 A/C W/Out Climate Control)
W/O CLIMATE CONTROL
The High Pressure A/C cut-out switch opens when the high side pressure gets to high, interrupting the A/C request signal from the control head. With no
request signal, the PCM opens the A/C relay ground circuit, disengaging the compressor to prevent damage to A/C system components. This switch
opens when the pressure is greater than about 440 psi.