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Home >> Hyundai >> 2006 >> Accent Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC Troubleshooting Procedures >> DTC P0505 Idle Air Control System >> DTC Detecting Condition

DTC P0505 Idle Air Control System: DTC Detecting Condition

DTC DETECTING CONDITION AND POSSIBLE CAUSE

Item Detecting Condition Possible Cause
General Enable Conditions
  • Vehicle speed = 0
  • Coolant temperature > 70°C (158°F)
  • Intake air temperature > -7.5°C (18.5°F)
  • Altitude ≤ 3000m (9841ft)
  • Idle status
  • Poor connection
  • Leak or clog in intake air system
  • Carbon pile
  • ISCA
  • ECM
Case 1 DTC Strategy
  • Rationality check, low (During catalyst heating)
Enable Conditions
  • Idle controller I part = 15.0%
  • Engine load ≤ 35%
  • Catalyst heating is activated.
Threshold Value
  • Desired engine speed - Engine speed > 100rpm
Diagnostic Time
  • 8sec
Case 2 DTC Strategy
  • Rationality check, high (During catalyst heating)
Enable Conditions
  • Idle controller I part = -15.0%
  • Catalyst heating is activated.
Threshold Value
  • Desired engine speed - Engine speed ≤ -200rpm
 
  • Fuel cut-off ≥ 3 times
Diagnostic Time
  • 8sec
MIL ON Condition
  • 2 driving cycle
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