DTC P0505 Idle Air Control System: DTC Detecting Condition

DTC DETECTING CONDITION

Item	Detecting Condition	Possible Cause
DTC Strategy	Plausibility check (Engine speed deviation monitor under cold start)	Restriction in intake or exhaust system ISCA stained with Carbon Bad Fuel Contact resistance in connectors Faulty ISC valve
Enable Conditions	No relevant failure Catalyst heating active Ambient Pressure > 800 hPa 11V < Battery voltage < 16V Under normal engine running conditions.
Threshold Value	Integral of deviation between setpoint RPM and actual speed RPM is out of the threshold value.
Diagnostic Time	For 20 seconds from engine start.
MIL On Condition	2 Driving Cycles