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Home >> Hyundai >> 2010 >> Elantra GLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC P0506: Idle Air Control System-RPM Lower than Expected >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

DTC DETECTING CONDITION AND POSSIBLE CAUSE

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitor deviation between target idle speed and actual engine speed
  • Restriction in intake or exhaust system
  • Carbonustment of the accelerator cable
  • Contact resistance in connectors
  • Faulty ICA valve
Enable Conditions
  • Coolant temperature >74°C(165.2°F)
  • Closed throttle status
  • Vehicle speed = 0
  • 20 sec. after engine start.
  • 10V< Battery voltage <16V
  • No relevant failure
Threshold Value
  • Engine speed-Target idle speed < -100rpm (Engine speed too low)
Diagnostic Time
  • 16 seconds
MIL On Condition
  • 2 Driving Cycles