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Home >> Genesis >> 2021 >> G70 2.0T, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 2.0L (5 Of 6) >> DTC P0620-00: Alternator Control Circuit >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
Main Action
  • Signal check
  1. Open or Short in harness
  2. Poor connection or damaged harness
Prerequisite condition
  • Desired alternator voltage duty cycle is between 3.12% and 94.5%.
  • Engine speed is higher than 240 RPM.
  • Battery voltage is between 10.73V and 16V.
Threshold Value
  • Control circuit is open or shorted.
Diagnostic Time
  • Continuously
MIL On Condition
  • No MIL ON (DTC only)