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Home >> Genesis >> 2024 >> G70 2.5T, AWD >> Repair and Diagnosis >> Transmission >> Transfer Case >> 4WD Control Diagnosis >> DTC U0122-87: Lost Communication With Vehicle Dynamics Control Module >> DTC Information And Inspection >> DTC Detecting Condition
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DTC Information And Inspection: DTC Detecting Condition

Troubleshooting Condition Possible Cause
Main Action
  • Monitor HECU CAN message
  1. Poor contact of connectors of each communication module
  2. Open/Short in CAN communication circuit
  3. HECU
Prerequisite Condition
  • CAN BUS works properly
  • Turn engine ON
Threshold Value
  • No HECU CAN message has been transmitted
Diagnosis Time
  • 2.1 seconds
Fail Safe
  • Do not control AWD
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