DTC U0073:00, U0101:00, U0121:00, U0131:00, U0140:00, U0151:00, U0155:00, U0214:00, U0235:00 [SKYACTIV-G 2.0, SKYACTIV-G 2.5]

id0102h4910800

Caution
•  Vehicle specifications differ depending on the vehicle identification number (VIN).
―  Type A VIN:
JM0 KE****** 100001—
JM6 KE****** 100001—
JM7 KE****** 100001—
JM8 KE****** 100001—
JMZ KE****** 100001—
KE10** 100001—
―  Type B VIN:
JM0 KE****** 200001—
JM6 KE****** 200001—
JM8 KE****** 200001—
JMZ KE****** 200001—
KE10** 200001—

DTC U0073:00

CAN system communication error (HS CAN)
DETECTION CONDITION
•  Malfunction in CAN bus communication line.
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 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
•  Communication error between the TCM continues for 5 s or more.
Diagnostic support note
•  This is a continuous monitor (other).
•  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
•  Controls the turbine rotation signal at 0.
•  Inhibits the AT torque reduction request.
•  Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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 U0121:00

CAN communication: communication error to DSC HU/CM
DETECTION CONDITION
•  Communication error between the DSC HU/CM continues for 5 s or more.
Diagnostic support note
•  This is a continuous monitor (other).
•  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 the DSC control.
•  Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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
•  Communication error between the EPS control module continues for 5 s or more.
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 stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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
•  Communication error between the front body control module (FBCM) continues for 5 s or more.
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 stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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
•  Communication error between the SAS control module continues for 5 s or more.
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 stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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
•  Communication error between the instrument cluster continues for 5 s or more.
Diagnostic support note
•  This is a continuous monitor (other).
•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle. (Type A VIN)
•  The check engine light does not illuminate. (Type B VIN)
•  FREEZE FRAME DATA (Mode 2) is not available. (Type B VIN)
•  FREEZE FRAME DATA (Mode 2) is available. (Type A VIN)
•  Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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
•  Communication error between the start stop unit continues for 5 s or more.
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 stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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
•  Communication error between the laser sensor continues for 5 s or more.
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 stored in the PCM memory.
FAIL-SAFE FUNCTION
•  The smart city brake support function is cancelled.
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 2.0, SKYACTIV-G 2.5 (L.H.D.)].) (See FOREWORD [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (R.H.D.)].)