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Home >> Scion >> 2013 >> FR-S Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Codes P0300 - P050A)) >> SFI System >> DTC P0506: Idle Air Control System RPM Lower than Expected; DTC P0507: Idle Air Control System RPM Higher than Expected [05/2013 - ] >> Monitor Description

Monitor Description

The ECM monitors the idling speed and idling air flow volume to conduct Idle Speed Control (ISC). The ECM determines that the ISC system is malfunctioning if the difference between the target engine idling speed and actual engine idling speed exceeds the threshold for 30 seconds or more.

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