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Home › Hyundai › 2017 › Azera Base › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (3 Of 3) › DTC P0620: Alternator Control Circuit › General Information › DTC Detecting Condition

General Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • Voltage monitoring
  1. Poor connection
  2. Open or short in circuit
  3. Faulty PCM
Enable Conditions Case1
  • Engine running
Case2
  • Ignition ON
Threshold value Case1
  • Alternator COM line shorted ground or power
Case2
  • Alternator COM line open
Diagnosis Time
  • 5 sec
MIL On Condition
  • DTC only (NO MIL ON)
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