DTC U0073:00, U0101:00, U0104:00, U0121:00, U0131:00, U0140:00, U0151:00, U0155:00, U0214:00, U0235:00 [SKYACTIV-G 2.0, SKYACTIV-G 2.5]
id0102h4911000
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DTC U0073:00 |
CAN system communication error (HS CAN) |
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DETECTION CONDITION
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• 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.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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Not applicable
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POSSIBLE CAUSE
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• CAN bus communication line malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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DTC U0101:00 |
CAN communication: communication error to TCM |
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DETECTION CONDITION
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• Communication error between the PCM and 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.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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• 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).
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POSSIBLE CAUSE
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• CAN communication line malfunction between TCM and PCM
• TCM malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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DTC U0104:00 |
CAN communication: communication error to radar unit |
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DETECTION CONDITION
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• Communication error between the PCM and radar 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.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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• The radar unit function is cancelled.
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POSSIBLE CAUSE
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• CAN communication line malfunction between radar unit and PCM
• Radar unit malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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DTC U0121:00 |
CAN communication: communication error to DSC HU/CM |
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DETECTION CONDITION
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• Communication error between the PCM and 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.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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• 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).
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POSSIBLE CAUSE
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• CAN communication line malfunction between DSC HU/CM and PCM
• DSC HU/CM malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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DTC U0131:00 |
CAN communication: communication error to EPS control module |
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DETECTION CONDITION
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• Communication error between the PCM and 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.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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• Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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POSSIBLE CAUSE
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• CAN communication line malfunction between EPS control module and PCM
• EPS control module malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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DTC U0140:00 |
CAN communication: communication error to front body control module (FBCM) |
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DETECTION CONDITION
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• Communication error between the PCM and 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.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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• Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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POSSIBLE CAUSE
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• CAN communication line malfunction between front body control module (FBCM) and PCM
• Front body control module (FBCM) malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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DTC U0151:00 |
CAN communication: communication error to SAS control module |
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DETECTION CONDITION
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• Communication error between the PCM and 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.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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• Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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POSSIBLE CAUSE
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• CAN communication line malfunction between SAS control module and PCM
• SAS control module malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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DTC U0155:00 |
CAN communication: communication error to instrument cluster |
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DETECTION CONDITION
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• Communication error between the PCM and 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.
• FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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• Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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POSSIBLE CAUSE
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• CAN communication line malfunction between instrument cluster and PCM
• Instrument cluster malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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DTC U0214:00 |
CAN communication: communication error to start stop unit |
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DETECTION CONDITION
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• Communication error between the PCM and 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.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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• Inhibits the i-stop control and flashes the i-stop warning light (amber) (engine stalls while engine is stopped by i-stop control).
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POSSIBLE CAUSE
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• CAN communication line malfunction between start stop unit and PCM
• Start stop unit malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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DTC U0235:00 |
CAN communication: communication error to laser sensor |
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DETECTION CONDITION
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• Communication error between the PCM and 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.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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• The smart city brake support function is cancelled.
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POSSIBLE CAUSE
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• CAN communication line malfunction between laser sensor and PCM
• Laser sensor malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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Diagnostic Procedure