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Home >> Kia >> 2023 >> Sorento X-Line EX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine Control System Diagnosis - 2.5L (VIN C) (10 Of 14) (Except HEV)) >> DTC P21DB-00: Cylinder 1 Injector 'B' Circuit Low >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Sensor signal monitoring
  • Poor connector connection
  • Short to ground injector #1 control circuit
  • MPI injector #1 control
Enable Conditions
  • Engine speed is greater than 160 RPM
  • Battery voltage is between 9 and 16V
  • Each cylinder injection time is greater than 0.336 ms
  • No fuel-cut condition
  • Power stage command "ON"
Threshold Value
  • The internal feedback voltage is below 2.21V
Diagnostic Time
  • Continuously
MIL ON Condition
  • 2 driving cycle
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