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Home >> Hyundai >> 2014 >> Equus Signature >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P2542: Low Pressure Fuel System Sensor Circuit High >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • Monitor the fuel pressure sensor's signal
  1. Poor Connection
  2. Short to power in signal circuit
  3. Open in ground circuit
  4. Fuel pressure sensor
  5. Fuel pump control module (FPCM)
Enable Conditions
  • Target fuel pressure is higher than 250kpa and lower than 600kpa.
  • Engine Running
  • Battery voltage is higher than 10V
Threshold value
  • The fuel pressure sensor voltage is higher than 4.25V
Diagnosis Time
  • 2sec
MIL On Condition
  • NO MIL
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