DTC U0001-88; U0100; U0101; U0121; U0131; U0140; U0151; U0155; U0214; U023A; Module Communication Error: Notes
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| Description |
- U0001:88
- Module communication error (HS-CAN)
- U0100:00
- Communication error with PCM
- U0101:00
- Communication error with TCM
- U0121:00
- Communication error with DSC HU/CM
- U0131:00
- Communication error with electric power steering (EPS) control module
- U0140:00
- Communication error with front body control module (FBCM)
- U0151:00
- Communication error with SAS control module
- U0155:00
- Communication error with instrument cluster
- U0214:00
- Communication error with start stop unit
- U023A:00
- Communication error with forward sensing camera (FSC)
|
| Detection condition |
- U0001:88
- Radar unit detects a CAN bus communication line (HS-CAN) malfunction.
- U0100:00
- Radar unit cannot receive the CAN signal from the PCM.
- U0101:00
- Radar unit cannot receive the CAN signal from the TCM.
- U0121:00
- Radar unit cannot receive the CAN signal from the DSC HU/CM.
- U0131:00
- Radar unit cannot receive the CAN signal from the electric power steering (EPS) control module.
- U0140:00
- Radar unit cannot receive the CAN signal from the front body control module (FBCM).
- U0151:00
- Radar unit cannot receive the CAN signal from the SAS control module.
- U0155:00
- Radar unit cannot receive the CAN signal from the instrument cluster.
- U0214:00
- Radar unit cannot receive the CAN signal from the start stop unit.
- U023A:00
- Radar unit cannot receive the CAN signal from the forward sensing camera (FSC).
|
| Fail-safe |
- U0001:88
- Inhibits the mazda radar cruise control (MRCC) system control
- Inhibits the smart brake support (SBS) system control
- Inhibits the distance recognition support system (DRSS) control
- U0100:00
- Inhibits the mazda radar cruise control (MRCC) system control
- U0101:00
- Inhibits the mazda radar cruise control (MRCC) system control
- U0121:00
- Inhibits the mazda radar cruise control (MRCC) system control
- Inhibits the smart brake support (SBS) system control
- Inhibits the distance recognition support system (DRSS) control
- U0131:00
- Inhibits the mazda radar cruise control (MRCC) system control
- Inhibits the smart brake support (SBS) system control
- Inhibits the distance recognition support system (DRSS) control
- U0140:00
- Inhibits the mazda radar cruise control (MRCC) system control
- Inhibits the smart brake support (SBS) system control
- U0151:00
- Inhibits the mazda radar cruise control (MRCC) system control
- Inhibits the smart brake support (SBS) system control
- Inhibits the distance recognition support system (DRSS) control
- U0155:00
- Inhibits the mazda radar cruise control (MRCC) system control
- Inhibits the smart brake support (SBS) system control
- Inhibits the distance recognition support system (DRSS) control
- U0214:00
- Inhibits the mazda radar cruise control (MRCC) system control
- Inhibits the smart brake support (SBS) system control
- Inhibits the distance recognition support system (DRSS) control
- U023A:00
- Inhibits the smart brake support (SBS) system control
|
| Possible cause |
- Malfunction in CAN bus communication line
- Malfunction in CAN line between PCM and radar unit
- Malfunction in CAN line between TCM and radar unit
- Malfunction in CAN line between DSC HU/CM and radar unit
- Malfunction in CAN line between electric power steering (EPS) control module and radar unit
- Malfunction in CAN line between front body control module (FBCM) and radar unit
- Malfunction in CAN line between SAS control module and radar unit
- Malfunction in CAN line between instrument cluster and radar unit
- Malfunction in CAN line between start stop unit and radar unit
- Malfunction in CAN line between forward sensing camera (FSC) and radar unit
|
| System wiring diagram |
Not applicable |