DTC U0100:00

Communication error to PCM (HS CAN)

DETECTION CONDITION

• Under the following condition, the TCM cannot receive the signal from PCM (HS CAN):

• Battery voltage is 10 V or more.

Diagnostic support note

• The check engine light illuminates if the TCM detects the above malfunction condition during the first drive cycle.

• The automatic transaxle warning light does not illuminate.

• PENDING CODE is available.

• FREEZE FRAME DATA is available.

• DTC is stored in the TCM memory.

FAIL-SAFE FUNCTION

• Inhibits learning control.

• Inhibits neutral idle control.

• Inhibits AAS.

POSSIBLE CAUSE

• CAN communication line malfunction between PCM and TCM (HS CAN)

• TCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

DTC U0073:00

CAN system communication error (HS CAN)

DETECTION CONDITION

• Under the following condition, a communication error (HS CAN) occurs:

• Battery voltage is 10 V or more.

Diagnostic support note

• The check engine light does not illuminate.

• The automatic transaxle warning light does not illuminate.

• PENDING CODE is available.

• FREEZE FRAME DATA is not available.

• DTC is stored in the TCM memory.

FAIL-SAFE FUNCTION

• Inhibits learning control.

• Inhibits neutral idle control.

• Inhibits AAS.

POSSIBLE CAUSE

• CAN bus communication line malfunction (HS CAN)

• TCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

DTC U0121:00

Communication error to DSC HU/CM

DETECTION CONDITION

• Under the following condition, the TCM cannot receive the signal from DSC HU/CM:

• Battery voltage is 10 V or more.

Diagnostic support note

• The check engine light illuminates if the TCM detects the above malfunction condition during the first drive cycle.

• The automatic transaxle warning light does not illuminate.

• PENDING CODE is available.

• FREEZE FRAME DATA is available.

• DTC is stored in the TCM memory.

FAIL-SAFE FUNCTION

• Inhibits learning control.

• Inhibits neutral idle control.

• Inhibits AAS.

POSSIBLE CAUSE

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

• TCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

DTC U0131:00

Communication error to EPS control module

DETECTION CONDITION

• Under the following condition, the TCM cannot receive the signal from EPS control module:

• Battery voltage is 10 V or more.

Diagnostic support note

• The check engine light does not illuminate.

• The automatic transaxle warning light does not illuminate.

• PENDING CODE is available.

• FREEZE FRAME DATA is not available.

• DTC is stored in the TCM memory.

FAIL-SAFE FUNCTION

• Inhibits learning control.

• Inhibits neutral idle control.

POSSIBLE CAUSE

• CAN communication line malfunction between TCM and EPS control module

• TCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

DTC U0155:00

Communication error to instrument cluster

DETECTION CONDITION

• Under the following condition, the TCM cannot receive the signal from instrument cluster:

• Battery voltage is 10 V or more.

Diagnostic support note

• The check engine light illuminates if the TCM detects the above malfunction condition during the first drive cycle.

• The automatic transaxle warning light does not illuminate.

• PENDING CODE is available.

• FREEZE FRAME DATA is available.

• DTC is stored in the TCM memory.

FAIL-SAFE FUNCTION

• Inhibits learning control.

• Inhibits manual mode.

• Inhibits neutral idle control.

POSSIBLE CAUSE

• CAN communication line malfunction between TCM and instrument cluster

• TCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable