DTC U0001:88, U0100:00, U0101:00, U0121:00, U0131:00, U0140:00, U0151:00, U0155:00, U0214:00, U0235:68, U023A:00 [RADAR UNIT]

id1502a6018700

System malfunction location

•  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 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

•  U0235:68: Communication error with laser sensor

•  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 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.

•  U0235:68: Radar unit cannot receive the CAN signal from the laser sensor.

•  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 forward obstruction warning (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

•  Inhibits the forward obstruction warning (SBS) system control

U0121:00

•  Inhibits the Mazda radar cruise control (MRCC) system control

•  Inhibits the forward obstruction warning (SBS) system control

•  Inhibits the distance recognition support system (DRSS) control

U0131:00

•  Inhibits the Mazda radar cruise control (MRCC) system control

•  Inhibits the forward obstruction warning (SBS) system control

•  Inhibits the distance recognition support system (DRSS) control

U0140:00

•  Inhibits the Mazda radar cruise control (MRCC) system control

•  Inhibits the forward obstruction warning (SBS) system control

U0151:00

•  Inhibits the Mazda radar cruise control (MRCC) system control

•  Inhibits the forward obstruction warning (SBS) system control

•  Inhibits the distance recognition support system (DRSS) control

U0155:00

•  Inhibits the Mazda radar cruise control (MRCC) system control

•  Inhibits the forward obstruction warning (SBS) system control

•  Inhibits the distance recognition support system (DRSS) control

U0214:00

•  Inhibits the Mazda radar cruise control (MRCC) system control

•  Inhibits the forward obstruction warning (SBS) system control

•  Inhibits the distance recognition support system (DRSS) control

U0235:68

•  Not applicable

U023A:00

•  Not applicable

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 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 laser sensor and radar unit

•  Malfunction in CAN line between forward sensing camera (FSC) and radar unit

System wiring diagram

•  Not applicable

System malfunction location	• 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 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 • U0235:68: Communication error with laser sensor • 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 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. • U0235:68: Radar unit cannot receive the CAN signal from the laser sensor. • 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 forward obstruction warning (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 • Inhibits the forward obstruction warning (SBS) system control U0121:00 • Inhibits the Mazda radar cruise control (MRCC) system control • Inhibits the forward obstruction warning (SBS) system control • Inhibits the distance recognition support system (DRSS) control U0131:00 • Inhibits the Mazda radar cruise control (MRCC) system control • Inhibits the forward obstruction warning (SBS) system control • Inhibits the distance recognition support system (DRSS) control U0140:00 • Inhibits the Mazda radar cruise control (MRCC) system control • Inhibits the forward obstruction warning (SBS) system control U0151:00 • Inhibits the Mazda radar cruise control (MRCC) system control • Inhibits the forward obstruction warning (SBS) system control • Inhibits the distance recognition support system (DRSS) control U0155:00 • Inhibits the Mazda radar cruise control (MRCC) system control • Inhibits the forward obstruction warning (SBS) system control • Inhibits the distance recognition support system (DRSS) control U0214:00 • Inhibits the Mazda radar cruise control (MRCC) system control • Inhibits the forward obstruction warning (SBS) system control • Inhibits the distance recognition support system (DRSS) control U0235:68 • Not applicable U023A:00 • Not applicable
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 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 laser sensor and radar unit • Malfunction in CAN line between forward sensing camera (FSC) and radar unit
System wiring diagram	• Not applicable

Diagnostic Procedure

• Perform the malfunction diagnosis according to the troubleshooting procedure for the multiplex communication system. (See FOREWORD [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (R.H.D.)].) (See FOREWORD [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (L.H.D.)].) (See FOREWORD [SKYACTIV-D 2.2 (R.H.D.)].) (See FOREWORD [SKYACTIV-D 2.2 (L.H.D.)].)