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Home >> Mazda >> 2014 >> 3 SV, Automatic Trans >> Repair and Diagnosis >> Brakes >> Traction Control >> On-Board Diagnostic [Dynamic Stability Control System - Laser Sensor] >> DTC U0001 00/U0100 00/U0121 00/U0131 00/U0155 00: Can Line >> Notes

DTC U0001 00/U0100 00/U0121 00/U0131 00/U0155 00: Can Line: Notes

DTC U0001 00/U0100 00/U0121 00/U0131 00/U0155 00 DETECTION CONDITIONS AND POSSIBLE CAUSES (LASER SENSOR)

DTC  U0001:00, U0100:00, U0121:00, U0131:00, U0155:00  CAN line 
DETECTION CONDITION 
  • U0001:00
    • Open or short circuit in CAN system wiring harness is detected.
  • U0100:00
    • Communication error with PCM is detected in CAN communication.
  • U0121:00
    • Communication error with DSC HU/CM is detected in CAN communication.
  • U0131:00
    • Communication error with EPS CM is detected in CAN communication.
  • U0155:00
    • Communication error with instrument cluster is detected in CAN communication.
FAIL-SAFE FUNCTION 
  • Inhibits the Smart City Brake Support (SCBS) controls.
  • Illuminates the Smart City Brake Support (SCBS) indicator light (amber)
POSSIBLE CAUSE 
  • CAN system wiring harness open or short circuit
  • CAN system wiring harness open or short circuit with PCM
  • CAN system wiring harness open or short circuit with DSC HU/CM
  • CAN system wiring harness open or short circuit with EPS CM
  • CAN system wiring harness open or short circuit with instrument cluster
  • Instrument cluster malfunction
SYSTEM WIRING DIAGRAM  Not applicable