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Home >> Subaru >> 2016 >> BRZ Premium >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Vehicle Stability Control System) >> Vehicle Stability Control System >> DTC U0073 CAN Failure. A System Bus Off Detection; DTC U0100 Engine Data, Not Received; DTC U0101 Transmission Data, Not Received; DTC U0126 Steering Angle Sensor Data, Not Received >> Description of functions
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Description of functions

WARNING: This page is about a different car, the 2014 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.

The skid control computer (brake actuator Assembly) inputs signals of the engine control computer, the transmission control computer, and the steering sensor through CAN communication.

Diagnostic codes DTC detecting conditions Faulty part
U0073 The voltage at +BS terminal is between 9.6 to 16.5 V and bus off status continues for 0.1 second or more. CAN communication system
U0100 The vehicle is running and the voltage at +BS terminal is between 9.6 to 16.5 V, and the data transmission or reception to the engine control computer is impossible for 0.5 seconds or more.
  • CAN communication line
  • Skid control computer (brake actuator Assembly)
  • Engine control computer
U0101 The vehicle is running and the voltage at +BS terminal is between 9.6 to 16.5 V, and the data transmission or reception to the transmission control computer is impossible for 0.5 seconds or more.
  • CAN communication line
  • Skid control computer (brake actuator Assembly)
  • Transmission control computer
U0126 The vehicle is running and the voltage at +BS terminal is between 9.6 to 16.5 V, and the data reception from the steering sensor is impossible for 0.1 second or more.
  • CAN communication line
  • Skid control computer (brake actuator Assembly)
  • Steering sensor