Mitsubishi Outlander (2013+). Manual - part 568

WINDSHIELD WIPER AND WASHER

EXTERIOR

51-31

COMMENTS ON TROUBLE SYMPTOM

The windshield wiper motor, the column switch, the 
lighting control sensor, the harness connector, or the 
ETACS-ECU may be defective.

PROBABLE CAUSES

• Defective column switch (column-ECU)

• Malfunction of the lighting control sensor

• Defective windshield wiper motor

• Malfunction of ETACS-ECU

• Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE

STEP 1. Lighting control sensor installation 
surface check
Visually check the presence of scratches or air bub-
bles (diameter of 5 mm or more) on the windshield to 
which the lighting control sensor is installed.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Replace the windshield (Refer to GROUP 
42A 

− Windshield Removal and Installation 

).

STEP 2. Windshield wiper operation check
Check that the windshield wipers work normally.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to trouble symptom chart 

P.51-24

.

STEP 3. M.U.T.-III diagnosis code
Check if an ETACS-related diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Diagnose the ETACS-ECU (Refer to 

GROUP 54A 

− ETACS ).

NO : 

Go to Step 4.

STEP 4. M.U.T.-III diagnosis code
Check if a lighting control sensor-related diagnosis 
code is set.

Q: Is the diagnosis code set?

YES : 

Diagnose the lighting control sensor. (Refer 

to GROUP 54A 

− Diagnosis Code Chart .)

NO : 

Go to Step 5.

STEP 5. Resistance measurement at lighting 
control sensor connector
(1) Disconnect the connector, and measure the 

resistance at the wiring harness.

(2) Measure the resistance between lighting control 

sensor connector (earth terminal) and body earth.

OK: Continuity exists (2 

Ω or less)

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Go to Step 6.

STEP 6. Check of open circuit in body earth line 
between lighting control sensor connector and 
the 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 wiring harness.

STEP 7. Voltage measurement at lighting control 
sensor connector (BUP1 terminal).
(1) Disconnect the connector, and measure the 

voltage at the wiring harness side.

(2) Measure the voltage between the lighting control 

sensor connector (BUP1 terminal) and body 
earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Go to Step 8.

STEP 8. Check of open circuit in BUP1 line 
between ETACS-ECU and lighting control sensor 
connector.

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 wiring harness.

STEP 9. Measure the voltage at ETACS-ECU 
connector (LIN2 terminal).
(1) Disconnect the connector, and measure the 

voltage at the wiring harness side.

(2) Measure the voltage between ETACS-ECU 

connector (LIN2 terminal) and body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Replace the Lighting control sensor.

NO : 

Go to Step 10.

WINDSHIELD WIPER AND WASHER

EXTERIOR

51-32

STEP 10. Check of short to power supply, short 
to earth and open circuit in LIN2 line between 
ETACS-ECU connector and lighting control 
sensor connector.

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 wiring harness.

INSPECTION PROCEDURE 8: The rain sensitive AUTO wiper function works even though there is no 
rainfall <Vehicles with lighting control sensor>. 

CAUTION

Whenever ECU is replaced, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM

The lighting control sensor, the harness connector, or 
the ETACS-ECU may be defective.

PROBABLE CAUSES

• Malfunction of the lighting control sensor

• Malfunction of ETACS-ECU

• Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE

STEP 1. Lighting control sensor installation 
surface check
Visually check the presence of scratches or air bub-
bles (diameter of 5 mm or more) on the windshield to 
which the lighting control sensor is installed.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Replace the windshield (Refer to GROUP 
42A 

− Windshield Removal and Installation 

).

STEP 2. Windshield wiper operation check
Check that the windshield wipers work normally.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to trouble symptom chart 

P.51-24

.

STEP 3. M.U.T.-III diagnosis code
Check if an ETACS-related diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Diagnose the ETACS-ECU (Refer to 

GROUP 54A 

− ETACS ).

NO : 

Go to Step 4.

STEP 4. M.U.T.-III diagnosis code
Check if a lighting control sensor-related diagnosis 
code is set.

Q: Is the diagnosis code set?

YES : 

Diagnose the lighting control sensor (Refer 

to GROUP 54A 

− Diagnosis Code Chart ).

NO : 

Go to Step 5.

STEP 5. Measure the voltage at ETACS-ECU 
connector (LIN2 terminal).
(1) Disconnect the connector, and measure the 

voltage at the wiring harness side.

(2) Measure the voltage between ETACS-ECU 

connector (LIN2 terminal) and body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Replace the Lighting control sensor.

NO : 

Go to Step 6.

STEP 6. Check of short to power supply, short to 
earth, and open circuit in LIN2 line between 
ETACS-ECU connector and lighting control 
sensor connector.

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 wiring harness.

WINDSHIELD WIPER AND WASHER

EXTERIOR

51-33

INSPECTION PROCEDURE 9: Sometimes the rain sensitive AUTO wiper function works even though 
there is no rainfall <Vehicles with lighting control sensor>. 

CAUTION

Whenever ECU is replaced, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM

The lighting control sensor may be defective or a fail-
ure in the lighting control sensor (rain sensor) adap-
tation is suspected.

PROBABLE CAUSES

• Malfunction of the lighting control sensor

• Lighting control sensor (rain sensor) adaptation 

failure

DIAGNOSTIC PROCEDURE

STEP 1. Lighting control sensor installation 
surface check
Visually check the presence of scratches or air bub-
bles (diameter of 5 mm or more) on the windshield to 
which the lighting control sensor is installed.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Replace the windshield (Refer to GROUP 
42A 

− Windshield Removal and Installation 

).

STEP 2. Windshield wiper operation check
Check that the windshield wipers work normally.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to trouble symptom chart 

P.51-24

.

STEP 3. M.U.T.-III diagnosis code
Check if an ETACS-related diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Diagnose the ETACS-ECU. Refer to 

GROUP 54A 

− ETACS .

NO : 

Go to Step 4.

STEP 4. M.U.T.-III diagnosis code
Check if a lighting control sensor diagnosis code is 
set.

Q: Is the diagnosis code set?

YES : 

Diagnose the lighting control sensor. (Refer 

to GROUP 54A 

− Diagnosis Code Chart ).

NO : 

Go to Step 5.

STEP 5. Lighting control sensor (rain sensor) 
installation surface check
Check that the lighting control sensor (rain sensor) is 
installed to the windshield glass correctly.

Q: Is the check result normal?

YES : 

Go to Step 6 after completion of the lighting 

control sensor (rain sensor) adaptation 
(

P.51-46

).

NO : 

Install the lighting control sensor (rain 
sensor) to the windshield glass correctly 
(Refer to GROUP 54A 

− Lighting Control 

Sensor Removal and Installation).

STEP 6. Retest the system.
Check the lighting control sensor (rain sensor) after 
completion of the lighting control sensor (rain sensor) 
adaptation
(1)  Windshield glass surface should be dry.
(2)  Pour water to the windshield glass surface where 

the lighting control sensor is installed.

Q:  Does the windshield wiper operate?

Operate once or more : 

Intermittent malfunction 

(Refer to GROUP 00 

− How to Use 

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

Does not operate : 

 Troubleshoot the 

rain-sensitive wiper function (Refer to 
Inspection procedure 7 

P.51-30

).

Inspection Procedure 10: The windshield washer does not work.

CAUTION

Whenever ECU is replaced, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM

The windshield washer motor, the column switch or 

the ETACS-ECU may be defective.

WINDSHIELD WIPER AND WASHER

EXTERIOR

51-34

PROBABLE CAUSES

• Defective windshield washer motor

• Defective column switch

• Malfunction of ETACS-ECU

• Malfunctions of the wiring harness and connec-

tors

DIAGNOSTIC PROCEDURE

STEP 1. Check the operation of the windshield 
wipers.
Check that the windshield wipers work normally.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to Inspection Procedure 1 
"Windshield wipers do not work at all 

P.51-24

."

STEP 2. M.U.T.-III diagnosis code
Check if an ETACS-related diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Troubleshoot the ETACS. Refer to GROUP 

54A 

− ETACS .

NO : 

Go to Step 3.

STEP 3. M.U.T.-III data list
Check the input signal related to the windshield 
washer operation.

• Ignition switch: ACC

•

Item No.

Item name

Normal 
condition

Item 237

Front washer

ON

Windshield washer switch: ON

OK: Normal condition is displayed.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Refer to GROUP 54A 

− ETACS, Inspection 

Procedure 11 "The column switch signal is 
not received ."

STEP 4. Check the washer motor.
Check that the windshield washer motor works nor-
mally (Refer to 

P.51-44

).

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Replace the washer motor.

STEP 5. Measure the voltage at ETACS-ECU 
connector (W.WA terminal).
(1) Disconnect the connector, and measure the 

voltage at the wiring harness-side.

(2) Ignition switch: ACC
(3) Windshield washer switch: ON
(4) Measure the voltage between C-304 

ETACS-ECU connector (W.WA terminal) and 
body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Go to Step 6.

STEP 6. Check of open, short to power supply, 
short to earth circuit in WASH line between 
washer motor connector and ETACS-ECU 
connector.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the wiring harness.

STEP 7. Check of open, short to power supply, 
short to earth circuit in W.WA line between 
washer motor connector and ETACS-ECU 
connector.

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Repair the wiring harness.

STEP 8. Retest the system.
Check that the windshield washers 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 ETACS-ECU.