Mitsubishi Outlander (2013+). Manual - part 520

TAILGATE <VEHICLES WITH ELECTRIC TAILGATE>

BODY

42A-100

Inspection Procedure A-7: Electric tailgate automatic operation does not work normally by the 
operation of keyless operation key (for both open and close operations).

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

The keyless operation key or the electric tailgate 
control unit may be defective.

PROBABLE CAUSES

• Malfunction of keyless operation key

• Damaged electric tailgate control unit

DIAGNOSIS PROCEDURE

STEP 1. Keyless entry system operation check
Check that the door lock/unlock is performed when 
the keyless operation key is operated.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to GROUP 42B 

− 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?

YES : 

Go to Step 3.

NO : 

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?

YES : 

 Refer to GROUP 54A 

− Diagnosis Code 

Chart .

NO : 

Go to Step 4.

STEP 4: System retest using the normal keyless 
operation key
(1) Register the keyless operation key which 

operates the electric tailgate normally.

(2) Check whether the electric tailgate works 

normally.

Q: Is the check result normal?

YES : 

Replace the keyless operation key.

NO : 

Go to Step 5.

STEP 5. System retest
Check whether the electric tailgate works normally.

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points - 
How to Cope with Intermittent Malfunction .)

NO : 

Replace the electric tailgate control unit.

Inspection Procedure A-8: Electric tailgate automatic operation does not work normally by the 
operation of tailgate lock release handle (only the open of automatic operation).

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

The tailgate lock release handle or the electric tail-
gate control unit may be defective.

PROBABLE CAUSES

• Tailgate lock release handle system failed

• Damaged electric tailgate control unit

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list
Check the signals related to the electric tailgate oper-
ation.

•

Item No.

Item name

Normal 
conditions

Item 3

Gate handle SW

OFF 

→ ON

Tailgate lock release handle: OFF 

→ ON

OK: Normal conditions are displayed for all 
the items.

Q: Is the check result normal?

TAILGATE <VEHICLES WITH ELECTRIC TAILGATE>

BODY

42A-101

YES : 

Go to Step 2.

NO : 

Refer to Inspection Procedure B-3 "Tailgate 
lock release handle signal is not received" 

P.42A-106

.

STEP 2. System retest
Check that the tailgate opens normally with the oper-
ation of tailgate lock release handle.

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points - 
How to Cope with Intermittent Malfunction .)

NO : 

Replace the electric tailgate control unit.

Inspection Procedure A-9: Electric tailgate automatic operation does not work normally by the 
operation of electric tailgate switch. (Open/close operation is not performed.)

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

The electric tailgate switch system or the electric tail-
gate control unit may have a problem.

PROBABLE CAUSES

• Malfunction of electric tailgate switch system

• Damaged electric tailgate control unit

• Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list
Check the signals related to the electric tailgate oper-
ation.

•

Item No.

Item name

Normal 
conditions

Item 2

Driver's door remote 
control SW

OFF 

→ ON

Electric tailgate switch: OFF 

→ ON

OK: Normal conditions are displayed for all 
the items.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to Inspection Procedure B-8 "Electric 
tailgate switch signal is not received" 

P.42A-111

.

STEP 2. System retest
Check whether the electric tailgate works normally.

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points - 
How to Cope with Intermittent Malfunction .)

NO : 

Replace the electric tailgate control unit.

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.

COMMENTS ON TROUBLE SYMPTOM

The central door locking or the electric tailgate con-

trol unit may have a problem.

PROBABLE CAUSES

• Malfunction of central door locking

• Damaged electric tailgate control unit

TAILGATE <VEHICLES WITH ELECTRIC TAILGATE>

BODY

42A-102

DIAGNOSIS PROCEDURE

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?

YES : 

Go to Step 2.

NO : 

Refer to Trouble Symptom Chart 

P.42A-26

.

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?

YES : 

Go to Step 3.

NO : 

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?

YES : 

 Refer to GROUP 54A 

− Diagnosis Code 

Chart .

NO : 

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?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points - 
How to Cope with Intermittent Malfunction .)

NO : 

Replace the electric tailgate control unit.

Inspection Procedure A-11: Alarm does not sound normally when electric tailgate works 
automatically.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

The wiring harness or its connector(s) between the 
electric tailgate buzzer and the electric tailgate con-
trol unit, the electric tailgate buzzer itself or the elec-
tric tailgate control unit itself may be defective.

PROBABLE CAUSES

• Damaged electric tailgate buzzer

• Damaged electric tailgate control unit

• Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III actuator test
Perform the actuator test, and check that the electric 
tailgate buzzer sounds.

• Item 4: Warning buzzer

Q:  Is the check result normal?

YES : 

Go to Step 6.

NO : 

Go to Step 2.

STEP 2. Electric tailgate buzzer inspection
Check the electric tailgate buzzer. Refer to 

P.42A-119

.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Replace the electric tailgate buzzer.

STEP 3. Resistance measurement at electric 
tailgate buzzer connector
(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Measure the resistance between buzzer 

connector and body earth.

OK: 10 

Ω or less

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Go to Step 4.

STEP 4. Check of open circuit in earth line 
between electric tailgate buzzer connector and 
body earth.

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points - 
How to Cope with Intermittent Malfunction .)

NO : 

Repair the connector(s) or wiring harness.

TAILGATE <VEHICLES WITH ELECTRIC TAILGATE>

BODY

42A-103

STEP 5. Check of short to power supply, short to 
earth, and open circuit in BZ+ line between 
electric tailgate control unit connector and 
electric tailgate buzzer connector.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the connector(s) or wiring harness.

STEP 6. System retest
Check whether the warning operates normally when 
the electric tailgate is operated.

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points - 
How to Cope with Intermittent Malfunction .)

NO : 

Replace the electric tailgate control unit.

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 tail-
gate 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

• Malfunction of the tailgate lock release handle

• Door-ajar switch system failed

• Neutral latch switch system failed

• Half latch switch system failed

• Full latch switch system malfunction

• Tailgate sensor malfunction

• Incorrect operation of tailgate lock release handle

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?

YES : 

Go to Step 2.

NO : 

Refer to diagnosis code chart 

P.42A-77

.

STEP 2. M.U.T.-III data list
Check the signals related to the electric tailgate oper-
ation.

• Tailgate lock release handle: OFF → ON

• Half latch switch: OFF → ON

• Full latch switch: OFF → ON

• Door-ajar switch: OFF → ON

• Neutral switch: OFF → ON

• Tailgate sensor LH: OFF → ON

•

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

Tailgate sensor RH: OFF 

→ ON

OK: Normal conditions are displayed for all 
the items.

Q: Is the check result normal?