DTC U0001-88; U0100-00; U0121-00; U0155-00; U0214-00: Unit Communication Error (Ms-Can): Notes
WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.
| Description |
- U0001:88
- Unit communication error (MS-CAN)
- U0100:00
- Communication error with PCM
- U0121:00
- Communication error with DSC HU/CM
- U0155:00
- Communication error with instrument cluster
- U0214:00
- Communication error with start stop unit
|
| Detection condition |
- U0001:88
- Blind spot monitoring (BSM) control module (LH) detects a CAN bus communication line (MS-CAN) malfunction with the ignition switched ON (engine off or on).
- U0100:00
- Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the PCM for 2 s or more
with the ignition switched ON (engine off or on).
- U0121:00
- Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the DSC HU/CM for 2 s or more
with the ignition switched ON (engine off or on).
- U0155:00
- Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the instrument cluster for 2 s or more
with the ignition switched ON (engine off or on).
- U0214:00
- Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the start stop unit for 2 s or more
with the ignition switched ON (engine off or on).
|
| Fail-safe |
- U0001:88
- Blind spot monitoring (BSM) system is stopped.
- U0100:00
- Blind spot monitoring (BSM) system is stopped.
- U0121:00
- Blind spot monitoring (BSM) system is stopped.
- U0155:00
- Blind spot monitoring (BSM) system is stopped.
- U0214:00
- Blind spot monitoring (BSM) system is stopped.
|
| Possible cause |
- Malfunction in CAN bus communication line
- Malfunction in CAN communication line between PCM and blind spot monitoring (BSM) control module (LH)
- Instrument cluster communication error (vehicle speed signal is not sent via instrument cluster from PCM)
- Malfunction in CAN communication line between DSC HU/CM and blind spot monitoring (BSM) control module (LH)
- Instrument cluster communication error (yaw rate signal is not sent via instrument cluster from DSC HU/CM)
- Malfunction in CAN communication line between instrument cluster and blind spot monitoring (BSM) control module (LH)
- Malfunction in CAN communication line between start stop unit and blind spot monitoring (BSM) control module (LH)
- Instrument cluster communication error (turn switch signal is not sent via instrument cluster from start stop unit)
|
| System wiring diagram |
Not applicable |