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Home >> Kia >> 2010 >> Forte EX, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (ULEV) (2 Of 2) >> DTC P0506: Idle Air Control System-RPM Lower than Expected >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitoring deviation between target idle speed and actual engine speed
  • Restriction in intake or exhaust system
  • Improperly adjusted Accelerator Cable.
  • Contact resistance in connectors
  • Faulty ISCA valve
Enable Conditions
  • Coolant temp. >73°C (163°F)
  • Engine idle status (closed throttle valve & vehicle speed=0)
  • Idle speed controller active (idle status)
  • 11< Battery voltage <16
  • After engine start >20 sec.
  • No relevant failure
Threshold Value
  • Nominal Idle Speed - Engine Speed < 100rpm
Diagnostic Time
  • 21 sec.
Mil On Condition
  • -