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Home >> Hyundai >> 2021 >> Ioniq Plug-In Hybrid Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (PHEV) (1 Of 3) >> DTC P0090: Fuel Pressure Regulator 1 Control Circuit/Open >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Signal check
  1. Poor connection
  2. Short to ground in control circuit
  3. FPR
Enable Conditions
  • Battery voltage is higher than 10.5V and lower than 16V
Threshold Value
  • Open
Diagnostic Time
  • Continuous
MIL ON Condition
  • 2 driving cycle
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