DTC U0001-00: U0100-00: U0121-00: U0131-00: U0155-00: Communication Error: Notes
WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
| DTC |
U0001:00 |
CAN line |
| U0100:00 |
| U0121:00 |
| U0131:00 |
| U0155:00 |
| DETECTION CONDITION |
- U0001:00
- Open or short circuit in CAN system wiring harness is detected
- U0100:00
- Communication error to PCM is detected in CAN communication
- U0121:00
- Communication error to DSC HU/CM is detected in CAN communication
- U0131:00
- Communication error to EPS control module is detected in CAN communication
- U0155:00
- Communication error to instrument cluster is detected in CAN communication
|
| FAIL-SAFE FUNCTION |
- Master warning light Illuminates
- Smart City Brake Support (SCBS) control disabled
|
| POSSIBLE CAUSE |
- CAN communication line malfunction
- CAN communication line malfunction with PCM
- CAN communication line malfunction with DSC HU/CM
- CAN communication line malfunction with EPS control module
- CAN communication line malfunction with instrument cluster
- Instrument cluster malfunction
|
| SYSTEM WIRING DIAGRAM |
- |