Mitsubishi Outlander (2013+). Manual - part 521

TAILGATE <VEHICLES WITH ELECTRIC TAILGATE>

BODY

42A-104

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" 

P.42A-106

.

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" 

P.42A-108

.

Normal condition is not displayed for item No. 7. : 

Refer to Inspection Procedure B-4 
"Door-ajar switch signal is not received" 

P.42A-107

.

Normal condition is not displayed for item No. 8. : 

Refer to Inspection Procedure B-5 "Neutral 
switch signal is not received" 

P.42A-108

.

Normal condition is not displayed for item 9 and 
10. : 

Refer to Inspection Procedure B-7 "Tailgate 
sensor signal is not received" 

P.42A-110

.

STEP 3. 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.

INPUT SIGNAL CHART

M1424007400058

Trouble symptom

Inspection 
procedure 
number

Reference 
page

Electric tailgate main switch signal is not received.

B-1

P.42A-104

Electric tailgate close switch signal is not received.

B-2

P.42A-105

Tailgate lock release handle signal is not received.

B-3

P.42A-106

Door-ajar signal is not received.

B-4

P.42A-107

Neutral switch signal is not received.

B-5

P.42A-108

Half latch switch and/or full latch switch signals are not received.

B-6

P.42A-108

Tailgate sensor signal is not received.

B-7

P.42A-110

Electric tailgate switch signal is not received.

B-8

P.42A-111

INPUT SIGNAL PROCEDURES

Inspection Procedure B-1: Electric tailgate main switch signal is not received.

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 control unit and the electric tailgate 
main switch, the electric tailgate main switch itself, or 
the electric tailgate control unit itself may have a 

problem.

PROBABLE CAUSES

• Electric tailgate main switch malfunction

• Damaged electric tailgate control unit

• Damaged wiring harness and connectors

TAILGATE <VEHICLES WITH ELECTRIC TAILGATE>

BODY

42A-105

DIAGNOSIS PROCEDURE

STEP 1. Electric tailgate main switch check
Check the electric tailgate main switch (refer to 

P.42A-119

).

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Replace the electric tailgate main switch.

STEP 2. Resistance measurement at electric 
tailgate main switch connector (earth line 
terminal).
(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Measure the resistance between electric tailgate 

main switch connector (earth line terminal) and 
body earth.

OK: Continuity exists (2 

Ω or less)

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Go to Step 3.

STEP 3. Check of open circuit in earth line 
between electric tailgate main switch 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.

STEP 4. Check of open circuit in MASW line 
between electric tailgate control unit connector 
and electric tailgate main switch connector.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the connector(s) or wiring harness.

STEP 5. System retest
Check that the electric tailgate main switch signal is 
received 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 B-2: Electric tailgate close switch signal is not received.

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 close switch and the electric tailgate 
control unit, the electric tailgate close switch itself or 
the electric tailgate control unit itself may be defec-
tive.

PROBABLE CAUSES

• Damaged electric tailgate close switch

• Damaged electric tailgate control unit

• Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE

STEP 1. Electric tailgate close switch inspection
Check the electric tailgate close switch (refer to 

P.42A-119

).

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Replace the electric tailgate close switch.

STEP 2. Resistance measurement at electric 
tailgate close switch connector (earth line 
terminal).
(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Measure the resistance between electric tailgate 

close switch connector (earth line terminal) and 
body earth.

OK: Continuity exists (2 

Ω or less)

Q: Is the check result normal?

TAILGATE <VEHICLES WITH ELECTRIC TAILGATE>

BODY

42A-106

YES : 

Go to Step 4.

NO : 

Go to Step 3.

STEP 3. Check of open circuit in earth line 
between electric tailgate close switch 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.

STEP 4. Check of open circuit in GCLS line 
between electric tailgate control unit connector 
and electric tailgate close switch connector.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the connector(s) or wiring harness.

STEP 5. System retest
Check whether the electric tailgate close switch sig-
nal is received 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 B-3: Tailgate lock release handle signal is not received.

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 
tailgate lock release handle and the electric tailgate 
control unit, the tailgate lock release handle itself or 
the electric tailgate control unit itself may be defec-
tive.

PROBABLE CAUSES

• Damaged tailgate lock release handle

• Damaged electric tailgate control unit

• Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE

STEP 1. Tailgate lock release handle check.
Check the tailgate lock release handle (refer 
to

P.42A-119

).

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Replace the tailgate lock release handle.

STEP 2. Resistance measurement at tailgate lock 
release handle connector (earth line terminal).
(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Measure the resistance between tailgate lock 

release handle connector (earth line terminal) 
and body earth.

OK: Continuity exists (2 

Ω or less).

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Go to Step 3.

STEP 3. Check of open circuit in earth line 
between tailgate lock release handle 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.

STEP 4. Check of open circuit in GOPN line 
between electric tailgate control unit connector 
and tailgate lock release handle connector.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the connector(s) or wiring harness.

STEP 5. System retest
Check that the tailgate lock release handle signal is 
received normally.

Q: Is the check result normal?

TAILGATE <VEHICLES WITH ELECTRIC TAILGATE>

BODY

42A-107

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 B-4: Door-ajar signal is not received.

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 
door-ajar switch and the electric tailgate control unit, 
the tailgate latch itself or the electric tailgate control 
unit itself may be defective.

PROBABLE CAUSES

• Damaged tailgate latch

• Damaged electric tailgate control unit

• Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE

STEP 1. Door-ajar switch inspection
Check the tailgate latch (refer to 

P.42A-119

).

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Replace the tailgate latch.

STEP 2. Resistance measurement at tailgate 
latch connector (door-ajar switch earth line 
terminal).
(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Measure the resistance between tailgate latch 

connector (door-ajar switch earth line terminal) 
and body earth.

OK: Continuity exists (2 

Ω or less).

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Go to Step 3.

STEP 3. Check of open circuit in earth line 
between tailgate latch connector (door-ajar 
switch terminal) and body earth.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the connector(s) or wiring harness.

STEP 4. Check of open circuit in LTH line 
between electric tailgate control unit connector 
and tailgate latch connector.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the wiring harness.

STEP 5. System retest
Check that the door-ajar switch signal is received 
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 : 

Go to Step 6.

STEP 6. After the replacement of tailgate latch, 
recheck the trouble symptom.
(1) Replace the tailgate latch.
(2) Check that the door-ajar switch signal is received 

normally.

Q: Is the check result normal?

YES : 

The procedure is complete.

NO : 

Replace the electric tailgate control unit.