July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC Parameters

Battery voltage is 7.5-15.0 volts.
Engine speed is more than 40 RPM.

DTC will set if A/C relay feedback voltage is 2.6-4.6 volts (ECM pull-up voltage) for longer than 0.5 second indicating an open circuit when A/C relay is commanded off.