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Home >> Honda >> 2021 >> HR-V EX, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Electronic Steering >> Electronic Power Steering (EPS) System - Advanced Diagnostics >> DTC Advanced Diagnostics >> DTC Advanced Diagnostics: EPS related DTCs (2019 2020 2021) >> DTC U129C-00: F-CAN Malfunction (EPS Control Unit-Driving Support System Control Unit)
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DTC U129C-00: F-CAN Malfunction (EPS Control Unit-Driving Support System Control Unit)

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V
  • IG voltage continued more than 10 V more than 5 seconds

Operating Condition:

  • Start the engine.
  • Wait more than 60 seconds after the EPS indicator goes off.
Execution Regular Diagnosis
Duration Within 60 seconds
DTC Type
  • 1 drive cycle
  • EPS indicator off
Fail Safe Action
  • Does not start LKAS function/assist
Possible Cause
  • Open or Poor connection between the EPS control unit and the CAN gateway (F-CAN B_H, F-CAN B_L lines)
  • Open or Poor connection between the multipurpose camera unit and the CAN gateway (F-CAN B_H, F-CAN B_L lines)
  • Multipurpose camera unit internal failure
  • CAN gateway internal failure
  • EPS motor/control unit internal failure