DTC U0001:00/U0100:00/U0121:00/U0131:00/U0155:00 [LASER SENSOR]

id0402c4894900

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

Diagnostic procedure