A/C Cutout Signal
PCM can prevent engagement of A/C compressor clutch through the A/C compressor control module. PCM provides a ground signal to A/C compressor control module that enables module to operate A/C compressor clutch relay. PCM will allow operation of A/C compressor clutch except when PCM did not receive A/C request input (idle-up signal) from A/C compressor control module, engine is operating in Wide Open Throttle (WOT), ECT sensor indicates that engine coolant temperature is greater than 230°F (110°C), and engine speed is less than 500 RPM or greater than 6500 RPM.