DTC U0073:00, U0101:00, U0104:00, U0121:00, U0131:00, U0140:00, U0151:00, U0155:00, U0214:00, U0235:00 [SKYACTIV-D 2.2]

id0102s4911000

DTC U0073:00

CAN system communication error (HS CAN)
DETECTION CONDITION
•  With the following conditions met, a CAN bus communication line error is continued for 1 s or more.
MONITORING CONDITIONS
―  Battery voltage: 10 V or more
―  1.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (other).
•  The check engine light does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  DTC is not stored in the PCM memory.
FAIL-SAFE FUNCTION
Not applicable
POSSIBLE CAUSE
•  CAN bus communication line malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

DTC U0101:00

CAN communication: communication error to TCM
DETECTION CONDITION
•  With the following conditions met, a communication error between the PCM and TCM is continued for 5 s or more.
MONITORING CONDITIONS
―  Battery voltage: 10 V or more
―  1.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (CCM).
•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  The fast idle up correction for the idle speed control is inhibited.
•  Inhibits engine-stop by operating the i-stop function.
POSSIBLE CAUSE
Note
•  During malfunction diagnosis, first verify the malfunction detection of DTC U0074:00 or U0115:00 for the TCM.
•  CAN communication line malfunction between PCM and TCM
•  TCM malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

DTC U0104:00

CAN communication: communication error to vehicle control module (V/C-module)
DETECTION CONDITION
•  With the following conditions met, a communication error between the PCM and radar unit is continued for 5 s or more.
MONITORING CONDITIONS
―  Battery voltage: 10 V or more
―  1.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (other).
•  The check engine light does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  DTC is not stored in the PCM memory.
FAIL-SAFE FUNCTION
•  The vehicle control module (V/C-module) function is cancelled.
POSSIBLE CAUSE
•  CAN communication line malfunction between PCM and vehicle control module (V/C-module)
•  Vehicle control module (V/C-module) malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

DTC U0121:00

CAN communication: communication error to DSC HU/CM
DETECTION CONDITION
•  With the following conditions met, a communication error between the PCM and DSC HU/CM is continued for 5 s or more.
MONITORING CONDITIONS
―  Battery voltage: 10 V or more
―  1.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (CCM).
•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits engine-stop by operating the i-stop function.
POSSIBLE CAUSE
•  CAN communication line malfunction between PCM and DSC HU/CM
•  DSC HU/CM malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

DTC U0131:00

CAN communication: communication error to EPS control module
DETECTION CONDITION
•  With the following conditions met, a communication error between the PCM and EPS control module is continued for 5 s or more.
MONITORING CONDITIONS
―  Battery voltage: 10 V or more
―  1.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (other).
•  The check engine light does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  DTC is not stored in the PCM memory.
FAIL-SAFE FUNCTION
Not applicable
POSSIBLE CAUSE
•  CAN communication line malfunction between PCM and EPS control module
•  EPS control module malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

DTC U0140:00

CAN communication: communication error to front body control module (FBCM)
DETECTION CONDITION
•  With the following conditions met, a communication error between the PCM and front body control module (FBCM) is continued for 5 s or more.
MONITORING CONDITIONS
―  Battery voltage: 10 V or more
―  1.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (other).
•  The check engine light does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  DTC is not stored in the PCM memory.
FAIL-SAFE FUNCTION
Not applicable
POSSIBLE CAUSE
•  CAN communication line malfunction between PCM and front body control module (FBCM)
•  Front body control module (FBCM) malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

DTC U0151:00

CAN communication: communication error to SAS control module
DETECTION CONDITION
•  With the following conditions met, a communication error between the PCM and SAS control module is continued for 5 s or more.
MONITORING CONDITIONS
―  Battery voltage: 10 V or more
―  1.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (other).
•  The check engine light does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  DTC is not stored in the PCM memory.
FAIL-SAFE FUNCTION
Not applicable
POSSIBLE CAUSE
•  CAN communication line malfunction between PCM and SAS control module
•  SAS control module malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

DTC U0155:00

CAN communication: communication error to instrument cluster
DETECTION CONDITION
•  With the following conditions met, a communication error between the PCM and instrument cluster is continued for 5 s or more.
MONITORING CONDITIONS
―  Battery voltage: 10 V or more
―  1.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (CCM).
•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits engine-stop by operating the i-stop function.
POSSIBLE CAUSE
•  CAN communication line malfunction between PCM and instrument cluster
•  Instrument cluster malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

DTC U0214:00

CAN communication: communication error to start stop unit
DETECTION CONDITION
•  With the following conditions met, a communication error between the PCM and start stop unit is continued for 5 s or more.
MONITORING CONDITIONS
―  Battery voltage: 10 V or more
―  1.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (other).
•  The check engine light does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  DTC is not stored in the PCM memory.
FAIL-SAFE FUNCTION
Not applicable
POSSIBLE CAUSE
•  CAN communication line malfunction between PCM and start stop unit
•  Start stop unit malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

DTC U0235:00

CAN communication: communication error to laser sensor
DETECTION CONDITION
•  With the following conditions met, a communication error between the PCM and laser sensor is continued for 5 s or more.
MONITORING CONDITIONS
―  Battery voltage: 10 V or more
―  1.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (other).
•  The check engine light does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  DTC is not stored in the PCM memory.
FAIL-SAFE FUNCTION
Not applicable
POSSIBLE CAUSE
•  CAN communication line malfunction between PCM and laser sensor
•  Laser sensor malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable


Diagnostic Procedure

•  Inspect according to the diagnostic procedure in ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]. (See FOREWORD [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5, SKYACTIV-D 2.2 (MTX)].) (See FOREWORD [SKYACTIV-D 2.2 (ATX), MZR 1.6].)