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Home >> Acura >> 2017 >> RLX Base >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> VSA System - Advanced Diagnostics (Except Hybrid) >> Advanced Diagnostics >> DTC : VSA related DTC's (VSA Control Unit) >> DTC U0104-00: CAN Communication Failure With Driving Support System Control Unit
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DTC U0104-00: CAN Communication Failure With Driving Support System Control Unit

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage 9.6 - 16.5 V

Operating Condition:

  • 1.

    Start the engine.

  • 2.

    Test-drive the vehicle at 7 mph (10 km/h) or more.

    (Be careful of the surrounding traffic conditions.)
Execution Regular Diagnosis
Duration About 1 second
DTC Type
  • 1 drive cycle
Fail Safe Action
  • Stop driving support system's brake function
Possible Cause
  • Open or Poor connection between the VSA modulator-control unit and the CAN gateway (F-CAN B_H, F-CAN B_L, F-CAN C_H, F-CAN C_L lines)
  • Open or Poor connection between the multipurpose camera unit and the CAN gateway (F-CAN C_H, F-CAN C_L lines)
  • Multipurpose camera unit internal failure
  • VSA modulator-control unit internal failure
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