Inspection Procedure A-12: Electric tailgate becomes as door-ajar.


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

COMMENTS ON TROUBLE SYMPTOM


With the electric tailgate, when the door-ajar status is reached before the closing of tailgate, the easy closer system is activated, and the tailgate is fully closed automatically. If an abnormality is present to the easy closer system, check the switches. When no abnormality is present to the switches, check the use method of tailgate. (When the tailgate lock release handle is operated manually, and if the tailgate is left as is without being opened, a door-ajar status may occur. Therefore, be sure not to leave the tailgate in the middle of operation.)

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III diagnosis code


(1)Operate the electric tailgate.
(2)Check whether a diagnosis code is set in the electric tailgate control unit.

Q. Is the check result normal?

Go to Step 2.

Refer to diagnosis code chart .

STEP 2. M.U.T.-III data list


Check the signals related to the electric tailgate operation.

Item No.
 Item name
 Normal conditions
Item 3
 Gate handle SW
 OFF → ON
Item 5
 Half-latch SW
 OFF → ON
Item 6
 Full-latch SW
 OFF → ON
Item 7
 Half door switch
 OFF → ON
Item 8
 Neutral SW
 OFF → ON
Item 9
 Touch sensor (left)
 OFF → ON
Item 10
 Touch sensor (right)
 OFF → ON
OK: Normal conditions are displayed for all the items.

Q. Is the check result normal?

All are normal. : When the tailgate lock release handle is operated manually, and if the tailgate is left as is without being opened, a door-ajar status may occur. Therefore, be sure not to leave the tailgate in the middle of operation. Go to Step 3.

Normal condition is not displayed for item No. 3. : Refer to Inspection Procedure B-3 "Tailgate lock release handle signal is not received" .

Normal condition is not displayed for item 5 and 6. : Refer to Inspection Procedure B-6 "Half latch switch and/or full latch switch signals are not received" .

Normal condition is not displayed for item No. 7. : Refer to Inspection Procedure B-4 "Door-ajar switch signal is not received" .

Normal condition is not displayed for item No. 8. : Refer to Inspection Procedure B-5 "Neutral switch signal is not received" .

Normal condition is not displayed for item 9 and 10. : Refer to Inspection Procedure B-7 "Tailgate sensor signal is not received" .

STEP 3. System retest


Check whether the electric tailgate works 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.