DTC Set Criteria

Engine is in closed loop idle speed control. Engine coolant temperature is more than 180°F (82°C). Battery voltage is more than 10 volts. Power steering pressure switch is off. Volumetric efficiency is less than 40 percent. Barometric pressure is more than 11 psi (76 kPa). Intake air temperature is more than 14°F (-10°C). Code will set if actual idle speed is more than 100 RPM less than target idle speed for 12 seconds.