DTC U0073:00, U0100:00, U0121:00, U0131:00, U0155:00, U0214:00 [TCM (SJ6A-EL)]

id0502o1905900

DTC U0073:00

CAN communication: Module communication error

DETECTION CONDITION

•  Vehicle condition: TCM communication normal

•  Status: Detects CAN BUS OFF malfunction

•  Period: After CAN controller reset, confirmed by re-detection

FAIL-SAFE FUNCTION

•  Inhibits the i-stop control.

•  Inhibits the manual shift control.

POSSIBLE CAUSE

•  CAN bus communication line malfunction

•  TCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

DTC U0073:00	CAN communication: Module communication error
DETECTION CONDITION	• Vehicle condition: TCM communication normal • Status: Detects CAN BUS OFF malfunction • Period: After CAN controller reset, confirmed by re-detection
FAIL-SAFE FUNCTION	• Inhibits the i-stop control. • Inhibits the manual shift control.
POSSIBLE CAUSE	• CAN bus communication line malfunction • TCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

DTC U0100:00

CAN communication: Communication error between PCM

DETECTION CONDITION

•  Vehicle condition: TCM communication normal

•  Status: Detects communication error with PCM

•  Period: Detects communication time-out

FAIL-SAFE FUNCTION

•  Inhibits the i-stop control.

POSSIBLE CAUSE

•  CAN communication line malfunction between PCM and TCM

SYSTEM WIRING DIAGRAM

Not applicable

DTC U0100:00	CAN communication: Communication error between PCM
DETECTION CONDITION	• Vehicle condition: TCM communication normal • Status: Detects communication error with PCM • Period: Detects communication time-out
FAIL-SAFE FUNCTION	• Inhibits the i-stop control.
POSSIBLE CAUSE	• CAN communication line malfunction between PCM and TCM
SYSTEM WIRING DIAGRAM	Not applicable

DTC U0121:00

CAN communication: Communication error between DSC HU/CM

DETECTION CONDITION

•  Vehicle condition: TCM communication normal

•  Status: Detects communication error with DSC HU/CM

•  Period: Confirmed 1 time in 0.5 s or more, or 2 s or more

FAIL-SAFE FUNCTION

•  Inhibits learning control.

•  Inhibits direct mode.

•  Inhibits AAS mode.

•  Inhibits slip control.

•  Inhibits the i-stop control.

POSSIBLE CAUSE

•  CAN communication line malfunction between TCM and DSC HU/CM

SYSTEM WIRING DIAGRAM

Not applicable

DTC U0121:00	CAN communication: Communication error between DSC HU/CM
DETECTION CONDITION	• Vehicle condition: TCM communication normal • Status: Detects communication error with DSC HU/CM • Period: Confirmed 1 time in 0.5 s or more, or 2 s or more
FAIL-SAFE FUNCTION	• Inhibits learning control. • Inhibits direct mode. • Inhibits AAS mode. • Inhibits slip control. • Inhibits the i-stop control.
POSSIBLE CAUSE	• CAN communication line malfunction between TCM and DSC HU/CM
SYSTEM WIRING DIAGRAM	Not applicable

DTC U0131:00

CAN communication: Communication error between EPS control module

DETECTION CONDITION

•  Vehicle condition: TCM communication normal

•  Status: Detects communication error with EPS control module

•  Period: Confirmed 1 time in 0.5 s or more

FAIL-SAFE FUNCTION

Not applicable

POSSIBLE CAUSE

•  CAN communication line malfunction between TCM and EPS control module

SYSTEM WIRING DIAGRAM

Not applicable

DTC U0131:00	CAN communication: Communication error between EPS control module
DETECTION CONDITION	• Vehicle condition: TCM communication normal • Status: Detects communication error with EPS control module • Period: Confirmed 1 time in 0.5 s or more
FAIL-SAFE FUNCTION	Not applicable
POSSIBLE CAUSE	• CAN communication line malfunction between TCM and EPS control module
SYSTEM WIRING DIAGRAM	Not applicable

DTC U0155:00

CAN communication: Communication error between instrument cluster

DETECTION CONDITION

•  Vehicle condition: TCM communication normal

•  Status: Detects communication error with instrument cluster

•  Period: Confirmed 1 time in 2 s or more

FAIL-SAFE FUNCTION

•  Inhibits the manual shift control.

•  Inhibits manual shifting using the up or down switch of the selector lever.

POSSIBLE CAUSE

•  CAN communication line malfunction between TCM and instrument cluster

SYSTEM WIRING DIAGRAM

Not applicable

DTC U0155:00	CAN communication: Communication error between instrument cluster
DETECTION CONDITION	• Vehicle condition: TCM communication normal • Status: Detects communication error with instrument cluster • Period: Confirmed 1 time in 2 s or more
FAIL-SAFE FUNCTION	• Inhibits the manual shift control. • Inhibits manual shifting using the up or down switch of the selector lever.
POSSIBLE CAUSE	• CAN communication line malfunction between TCM and instrument cluster
SYSTEM WIRING DIAGRAM	Not applicable

DTC U0214:00

CAN communication: Communication error between start stop unit

DETECTION CONDITION

•  Vehicle condition: TCM communication normal

•  Status: Detects communication error with start stop unit

•  Period: Confirmed 1 time in 2 s or more

FAIL-SAFE FUNCTION

•  Inhibits direct mode.

POSSIBLE CAUSE

•  CAN communication line malfunction between TCM and start stop unit

SYSTEM WIRING DIAGRAM

Not applicable

DTC U0214:00	CAN communication: Communication error between start stop unit
DETECTION CONDITION	• Vehicle condition: TCM communication normal • Status: Detects communication error with start stop unit • Period: Confirmed 1 time in 2 s or more
FAIL-SAFE FUNCTION	• Inhibits direct mode.
POSSIBLE CAUSE	• CAN communication line malfunction between TCM and start stop unit
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic Procedure

• Inspect according to the diagnostic procedure in ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]. (See FOREWORD [L.H.D.].) (See FOREWORD [R.H.D.].)