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Home › Genesis › 2021 › G90 3.3T Premium, AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis - 3.3L (9 Of 9) › DTC U012D-00: Lost Communication With Generator Control Module › DTC Information › DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Signal monitoring
  1. Faulty LIN communication line between ECM and alternator
  2. Faulty ECM
Enable Conditions
  • Engine Run Time is more than 2 seconds
  • Battery Voltage is greater than 11V
Threshold Value
  • LIN communicating error with alternator
Diagnosis Time
  • Continuous
MIL On Condition
  • No MIL On (DTC only)
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