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


id0102h1980300

DTC U0073:00

CAN system communication error (HS CAN)

DETECTION CONDITION
•  If there is a malfunction in CAN bus communication line.
Diagnostic support note
•  This is a continuous monitor (other).
•  The MIL does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  The DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the i-stop control and illuminates the i-stop warning light (amber).(PCM sends flash request to instrument cluster, however, i-stop warning light (amber) is illuminated by instrument cluster operation because flash request cannot be received on instrument cluster side)
POSSIBLE CAUSE
•  CAN bus communication line malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM

DTC U0101:00

CAN communication: communication error to TCM

DETECTION CONDITION
•  When a communication error between the TCM continues for 5 s or more.
Diagnostic support note
•  This is a continuous monitor (other).
•  The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  The 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).
POSSIBLE CAUSE
Note
•  During malfunction diagnosis, first verify the malfunction detection of DTC U0074:00 or U0115:00 for the TCM.
•  CAN communication line between PCM and TCM malfunction
•  TCM malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM

DTC U0121:00

CAN communication: communication error to DSC HU/CM

DETECTION CONDITION
•  When a communication error between the DSC HU/CM continues for 5 s or more.
Diagnostic support note
•  This is a continuous monitor (other).
•  The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  The 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).
POSSIBLE CAUSE
•  CAN communication line between PCM and DSC HU/CM malfunction
•  DSC HU/CM malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM

DTC U0131:00

CAN communication: communication error to EHPAS control module

DETECTION CONDITION
•  When a communication error between the EHPAS control module continues for 5 s or more.
Diagnostic support note
•  This is a continuous monitor (other).
•  The MIL does not illuminate.
•  FREEZE FRAME DATA (Mode 2) is not available/Snapshot data is available.
•  The DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the i-stop control and flashes the i-stop warning light (amber).
POSSIBLE CAUSE
•  CAN communication line between PCM and EHPAS control module malfunction
•  EHPAS control module malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM

DTC U0140:00

CAN communication: communication error to BCM

DETECTION CONDITION
•  When a communication error between the BCM continues for 5 s or more.
Diagnostic support note
•  This is a continuous monitor (other).
•  The MIL does not illuminate.
•  FREEZE FRAME DATA (Mode 2) is not available/Snapshot data is available.
•  The DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the i-stop control and flashes the i-stop warning light (amber).
POSSIBLE CAUSE
•  CAN communication line between PCM and BCM malfunction
•  BCM malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM

DTC U0151:00

CAN communication: communication error to SAS control module

DETECTION CONDITION
•  When a communication error between the SAS control module continues for 5 s or more.
Diagnostic support note
•  This is a continuous monitor (other).
•  The MIL does not illuminate.
•  FREEZE FRAME DATA (Mode 2) is not available/Snapshot data is available.
•  The DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the i-stop control and flashes the i-stop warning light (amber).
POSSIBLE CAUSE
•  CAN communication line between PCM and SAS control module malfunction
•  SAS control module malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM

DTC U0155:00

CAN communication: communication error to instrument cluster

DETECTION CONDITION
•  When a communication error between the instrument cluster continues for 5 s or more.
Diagnostic support note
•  This is a continuous monitor (other).
•  The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  The DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the i-stop control and flashes the i-stop warning light (amber).
POSSIBLE CAUSE
•  CAN communication line between PCM and instrument cluster malfunction
•  Instrument cluster malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM

DTC U0214:00

CAN communication: communication error to keyless control module

DETECTION CONDITION
•  When a communication error between the keyless control module continues for 5 s or more.
Diagnostic support note
•  This is a continuous monitor (other).
•  The MIL does not illuminate.
•  FREEZE FRAME DATA (Mode 2) is not available/Snapshot data is available.
•  The 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 between PCM and keyless control module malfunction
•  Keyless control module malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM


Diagnostic Procedure

•  Inspect according to the diagnostic procedure in ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]. (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI i-stop, MZR 1.5))].)