Inspection Procedure A-10: Easy closer system and electric tailgate automatic operation (open) work with the door locked.

caution Before replacing the ECU, ensure that the input and output signal circuits are normal.


The central door locking or the electric tailgate control unit may have a problem.



STEP 1. Check the operation of the central door locking system.

Check that the doors can be locked and unlocked normally when the door lock key cylinder or the door lock inside knob is operated.

Q. Is the check result normal?

Go to Step 2.

Refer to Trouble Symptom Chart .

STEP 2. M.U.T.-III CAN bus diagnostics

Use M.U.T.-III to diagnose the CAN bus lines.

Q. Is the CAN bus normal?

Go to Step 3.

Repair the CAN bus line. (Refer to GROUP 54C - CAN Bus Line Trouble Symptom Chart .)

STEP 3. M.U.T.-III diagnosis code

Check that ETACS-ECU sets a diagnosis code.

Q. Is the diagnosis code set?

Refer to GROUP 54A - Diagnosis Code Chart .

Go to Step 4.

STEP 4. System retest

Check that the automatic operations of easy closer system and electric tailgate work normally.

Q. Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction .)

Replace the electric tailgate control unit.