DTC U0001-88; U0100-00; U0121-00; U0155-00; U0214-00: 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 |
U0001:88 |
CAN system Communication error |
| U0100:00 |
Communication error to PCM |
| U0121:00 |
Communication error to DSC HU/CM |
| U0155:00 |
Communication error to instrument cluster |
| U0214:00 |
Communication error to start stop unit |
| DETECTION CONDITION |
- U0001:88
- Error detected in line between CAN connection module and CAN bus communication line
- U0100:00
- Communication error to PCM is detected in CAN communication
- U0121:00
- Communication error to DSC CM is detected in CAN communication
- U0155:00
- Communication error to instrument cluster is detected in CAN communication
- U0214:00
- Communication error to start stop unit is detected in CAN communication
|
| FAIL-SAFE FUNCTION |
- U0001:88
- Control enabled
- Power steering malfunction indicator light: Illuminated
- U0100:00
- Control is maintained by gradually changing the controlled vehicle speed and setting it to 100 km/h {62.1 mph}
- Power steering malfunction indicator light: Illuminated
- U0121:00, U0155:00
- Control enabled
- Power steering malfunction indicator light: Not illuminated
- U0214:00
- Control enabled
- Power steering malfunction indicator light: Not illuminated
|
| POSSIBLE CAUSE |
- 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 instrument cluster
- CAN system wiring harness open or short circuit with start stop unit
- Poor connection at connectors
|
| SYSTEM WIRING DIAGRAM |
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