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HOMESERVICE MANUALSGENESIS2021GV80 2.5T ADVANCED, AWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM DIAGNOSIS - 2.5L (6 OF 6)DTC U012B-F0: LOST COMMUNICACTION WITH CHASSIS CONTROL MODULE 'B'DTC INFORMATION AND INSPECTIONDTC DETECTING CONDITION
2021 Genesis GV80 2.5T Advanced, AWD

DTC Information And Inspection: DTC Detecting Condition

2021 Genesis GV80 2.5T Advanced, AWDSECTION DTC Detecting Condition
Item Detecting Condition Possible Cause
DTC Strategy
  • CAN message monitoring
  1. Faulty SCC* power supply
  2. E-CAN "High" line open/poor contact
  3. E-CAN "Low" line open/poor contact
  4. Short circuit between E-CAN "High" line and "Low" line
  5. Faulty SCC*
Enable Condition
  • Ignition "ON"
  • Power voltage: Between 9V and 16V
  • E-CAN communication: active
Threshold Value Not Communication
  • Data: not entered
Abnormal Data
  • Data: Abnormal data entered
Diagnostic Time
  • Continuous
Mil On Condition
  • 2 driving cycles*

Driving Cycle*: DC

  • When [Ignition ON → Engine ON → Ignition ON] is executed, one driving cycle* (1 DC) is completed
  • "MIL ON" means that the fault is confirmed as soon as a fault is detected during the first driving cycle* and "MIL ON" is output from the ECM*
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.