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Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> HCU/Low Dc-Dc Converter Diagnosis (HEV) >> DTC P1A89: DC/DC Converter Current Sensor Fault >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitoring the output current of LDC
  1. Faulty LDC
Enable Conditions
  • Ignition ON
  • Aux. Battery Voltage is between 9V and 16V
Threshold Value
  • Initial value of current sensor over 0.08V or below -0.12V
Diagnosis Time
  • 1 time after calibration complete
DTC
  • 1 Driving Cycle
Service Lamp On Condition
  • 1 Driving Cycle
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