DTC

U0401:68

Abnormal message from PCM

DETECTION CONDITION

• Correct data cannot be received from PCM

FAIL-SAFE FUNCTION

• Inhibits the smart city brake support (SCBS) controls.

• Illuminates the master warning light

• The message ”SCBS Inspection Required” is indicated in the display.

POSSIBLE CAUSE

• PCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

STEP

INSPECTION

ACTION

1

• Switch the ignition off.

• Using the M-MDS, perform the DTC inspection for the PCM.

  (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.5].)

• Are any DTCs detected?

Yes

Go to applicable DTC inspection.

(See DTC TABLE [SKYACTIV-G 2.5].)

No

Go to the next step.

2

• Clear the DTCs from the memory.

  (See ON-BOARD DIAGNOSIS [LASER SENSOR].)

• Are the same DTCs present?

Yes

Repeat the inspection from Step 1.

If the malfunction recurs, replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.5].)

No

Go to the next step.

3

• Are any other DTCs output?

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSIS [LASER SENSOR].)

No

DTC troubleshooting completed.