DTC U0001-88; U0100; U0104; U0121; U0131; U0140; U0151; U0155; U0156; U0214; Module Communication Errors: 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 CAUSES
| Description |
- U0001:88
- Module communication error (HS-CAN)
- U0100:00
- Communication error with PCM
- U0104:00
- Communication error with radar unit
- 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
- U0156:00
- Communication error with connectivity master unit (CMU)
- U0214:00
- Communication error with start stop unit
|
| Detection condition |
- U0001:88
- Forward sensing camera (FSC) cannot receive the CAN bus communication signal (HS-CAN) for 5 s or more.
- U0100:00
- Forward sensing camera (FSC) cannot receive the CAN signal from the PCM for 5 s or more.
- U0104:00
- Forward sensing camera (FSC) cannot receive the CAN signal from the radar unit for 5 s or more.
- U0121:00
- Forward sensing camera (FSC) cannot receive the CAN signal from the DSC HU/CM for 5 s or more.
- U0131:00
- Forward sensing camera (FSC) cannot receive the CAN signal from the electric power steering (EPS) control module for 5 s or more.
- U0140:00
- Forward sensing camera (FSC) cannot receive the CAN signal from the front body control module (FBCM) for 5 s or more.
- U0151:00
- Forward sensing camera (FSC) cannot receive the CAN signal from the SAS control module for 5 s or more.
- U0155:00
- Forward sensing camera (FSC) cannot receive the CAN signal from the instrument cluster for 5 s or more.
- U0156:00
- Forward sensing camera (FSC) cannot receive the CAN signal from the connectivity master unit (CMU) for 5 s or more.
- U0214:00
- Forward sensing camera (FSC) cannot receive the CAN signal from the start stop unit for 5 s or more.
|
| Fail-safe |
- U0001:88
- Inhibits the lane departure warning system (LDWS).
- Inhibits the lane-keep assist system.
- Inhibits the high beam control (HBC) system.
- Inhibits the smart city brake support (SCBS).
- U0100:00
- Inhibits the lane departure warning system (LDWS).
- Inhibits the lane-keep assist system.
- Inhibits the high beam control (HBC) system.
- Inhibits the smart city brake support (SCBS).
- U0104:00
- Inhibits the smart city brake support (SCBS).
- U0121:00
- Inhibits the lane departure warning system (LDWS).
- Inhibits the lane-keep assist system.
- Inhibits the high beam control (HBC) system.
- Inhibits the smart city brake support (SCBS).
- U0131:00
- Inhibits the lane departure warning system (LDWS).
- Inhibits the lane-keep assist system.
- Inhibits the smart city brake support (SCBS).
- U0140:00
- Inhibits the lane departure warning system (LDWS).
- Inhibits the lane-keep assist system.
- Inhibits the high beam control (HBC) system.
- Inhibits the smart city brake support (SCBS).
- U0151:00
- Inhibits the lane departure warning system (LDWS).
- Inhibits the lane-keep assist system.
- Inhibits the high beam control (HBC) system.
- Inhibits the smart city brake support (SCBS).
- U0155:00
- Inhibits the lane departure warning system (LDWS).
- Inhibits the lane-keep assist system.
- Inhibits the high beam control (HBC) system.
- Inhibits the smart city brake support (SCBS).
- U0156:00
- U0214:00
- Inhibits the lane departure warning system (LDWS).
- Inhibits the lane-keep assist system.
- Inhibits the high beam control (HBC) system.
- Inhibits the smart city brake support (SCBS).
|
| Possible cause |
- Malfunction in CAN bus communication line
- Malfunction in CAN line between PCM and forward sensing camera (FSC)
- Malfunction in CAN line between radar unit and forward sensing camera (FSC)
- Malfunction in CAN line between DSC HU/CM and forward sensing camera (FSC)
- Malfunction in CAN line between electric power steering (EPS) control module and forward sensing camera (FSC)
- Malfunction in CAN line between front body control module (FBCM) and forward sensing camera (FSC)
- Malfunction in CAN line between SAS control module and forward sensing camera (FSC)
- Malfunction in CAN line between instrument cluster and forward sensing camera (FSC)
- Malfunction in CAN line between connectivity master unit (CMU) and forward sensing camera (FSC)
- Malfunction in CAN line between start stop unit and forward sensing camera (FSC)
|
| System wiring diagram |
Not applicable |