DTC Set Conditions

Check conditions are when vehicle is under closed loop idle speed control, engine coolant temperature is more than about 171°F (77°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), 25 seconds have elapsed from the start of the previous monitoring and target idle air control motor position is more than 100 steps.

Judgment criteria is when actual idle speed is more than 100 RPM less than the target idle speed for 12 seconds.