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Home >> Hyundai >> 2011 >> Equus Signature >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0111: Intake Air Temperature Sensor 1 Circuit Range/Performance >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

DTC DETECTING CONDITION REFERENCE CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • Rationality check
  1. Poor connection
  2. Short to ground in signal circuit
  3. Open in ground circuit
  4. Faulty ECTS
  5. Faulty IATS
  6. Faulty ECM
Case 1 Enable Conditions
  • Vehicle speed < 3mph for 14sec ≥ 6 times
  • Vehicle speed > 30mph for 8sec ≥ 2 times
Threshold Value
  • Max. temp - Min. temp < 1.5°C
Case 2 Enable Conditions
  • Vehicle speed > 30 mph
  • 60 ≤ Airflow ≤ 300 Kg/h
Threshold Value
  • Measured temperature > 115C
Diagnostic Time
  • 2 sec
Case 3 Enable Conditions
  • Soaking time > 6hr
Threshold Value
  • IAT at cranking - ECT at cranking > 26°C
Diagnostic Time
  • 5 sec
Case 4 Enable Conditions
  • Vehicle speed > 30 mph
  • 60 ≤ Airflow ≤ 300 Kg/h
Threshold Value
  • IAT sensor voltage > 3V
Diagnostic Time
  • 1 sec
MIL ON Condition
  • 2 Driving Cycles
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