DTC P0506 Idle Air Control System-Rpm Lower Than Expected: DTC Detecting Condition

DTC DETECTING CONDITION

Item	Detecting Condition	Possible cause
DTC Strategy	Real engine speed & target engine speed	Poor connection Intake/Exhaust system for blockage Throttle plate for carbon deposits Faulty ETS system Faulty ETS motor Faulty TPS Faulty PCM
Enable Conditions	Idle switch: ON
Threshold value	(Real engine speed - Target engine speed) < (Target engine speed -100rpm)
Diagnosis Time	Continuous
MIL On Condition	2 driving cycles