Bonneville V6-3800 3.8L VIN L SFI (1995)
A/C Signal: Description and Operation
A/C Request Signal
A/C REQUEST SIGNAL
This signal informs the Powertrain Control Module (PCM) when an A/C mode is selected, and the A/C pressure cycling switch is closed. The
PCM uses this to adjust the idle speed before turning "ON" the A/C clutch. If this signal is not available to the PCM, the A/C compressor will be
inoperative.