DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM/PCM/EV "A"; DTC U0101: Lost Communication with TCM; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module [09/2020 - ]: Description
These DTCs are stored if a CAN communication malfunction occurs between the headlight ECU sub-assembly LH and other ECUs.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U0073 | Control Module Communication Bus Off | The headlight ECU sub-assembly LH does not send/receive data. | CAN communication system | HL AutoLeveling |
| U0100 | Lost Communication with ECM/PCM/EV "A" | The headlight ECU sub-assembly LH does not receive data from the ECM for approximately 10 seconds or more. | CAN communication system | HL AutoLeveling |
| U0101 | Lost Communication with TCM | The headlight ECU sub-assembly LH does not receive data from the ECM for approximately 10 seconds or more. | CAN communication system | HL AutoLeveling |
| U0126 | Lost Communication with Steering Angle Sensor Module | The headlight ECU sub-assembly LH does not receive data from the steering sensor for approximately 5 seconds or more. | CAN communication system | HL AutoLeveling |
| U0129 | Lost Communication with Brake System Control Module | The headlight ECU sub-assembly LH does not receive data from the skid control ECU (brake actuator assembly) for approximately 5 seconds or more. | CAN communication system | HL AutoLeveling |
| U0142 | Lost Communication with Body Control Module "B" | The headlight ECU sub-assembly LH does not receive data from the main body ECU (multiplex network body ECU) for approximately 10 seconds or more. | CAN communication system | HL AutoLeveling |
| U0155 | Lost Communication with Instrument Panel Cluster (IPC) Control Module | The headlight ECU sub-assembly LH does not receive data from the combination meter assembly for approximately 30 seconds or more. | CAN communication system | HL AutoLeveling |