Catera V6-3.0L VIN R (1997)
A/C Signal: Description and Operation
A/C Load Signal
The Air Conditioning (A/C) Load circuit signals the ECM when the A/C compressor system is under an excessive load during, for example, any high
ambient conditions. If the system pressure exceeds 1,200 kPa, the ECM will detect this condition and increase the idle speed by about 50 RPM in order
to compensate for the excess load.