Mitsubishi Outlander GS45X. Manual - part 1361

WINDSHIELD WIPER AND WASHER

TSB Revision

EXTERIOR

51-67

CIRCUIT OPERATION

The windshield washer switch sends a signal 
through the column-ECU (incorporated in the column 
switch) to the ETACS-ECU. If the column-ECU sends 
a windshield washer switch "ON" signal to the 
ETACS-ECU, the ETACS-ECU turns on the relay 
(incorporated in the ETACS-ECU), thus causing the 
washer motor to be turned on.

.

TECHNICAL DESCRIPTION (COMMENT)

If the windshield washer does not work normally, the 
washer motor, the column switch (windshield wiper 
and washer switch) or the ETACS-ECU may be 
defective.

.

TROUBLESHOOTING HINTS

• The wiring harness or connectors may have 

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector

• The washer motor may be defective

• The column switch may be defective

• The ETACS-ECU may be defective

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A

STEP 1. Verify the windshield wiper operation.
Q: Does the windshield wiper operate normally?

YES : Go to Step 2.
NO :  Refer to Inspection Procedure 1 "The windshield 

wipers do not work at all 

P.51-34

?."

STEP 2. Use the scan tool MB991958 to check if an 
ETACS-related diagnostic trouble code is set. 
Connect the scan tool. Refer to GROUP 54A ETACS, "Diag-
nostic function 

P.54A-729

."

Q: Is the diagnostic trouble code set?

YES : Diagnose the ETACS-ECU. Refer to GROUP 54A 

ETACS, "Diagnostic trouble code chart 

P.54A-732

."

NO :  Go to Step 3.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link 
connector

WINDSHIELD WIPER AND WASHER

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EXTERIOR

51-68

STEP 3. Check the input signal related to the windshield 
washer operation.

• Ignition switch: ACC

• Windshield washer switch: ON

OK: Normal condition is displayed.

Q: Is the check result normal?

NO :  Go to Step 4.
YES : Refer to GROUP 54A 

− ETACS, Input Signal 

Procedures 

P.54A-785

.

STEP 4. Check windshield washer motor connector A-54 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is windshield washer motor connector A-54 in good 

condition?
YES : Go to Step 5.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the windshield wiper works 

normally.

STEP 5. Check the operation of windshield washer motor.
(1) Disconnect windshield washer motor connector A-54 and 

check at windshield washer motor connector side.

(2) Fill the windshield washer tank with washer fluid.
(3) When battery voltage is applied between terminals 1 and 2, 

washer fluid should spray out.

Q: Does the washer motor operate normally?

YES : Go to Step 6.
NO :  Replace the washer motor. Verify that the windshield 

washer works normally.

STEP 6. Check the operation of rear washer.
Check that rear washer works.
Q: Does the rear washer operate normally?

YES : Go to Step 7.
NO :  Replace the ETACS-ECU.

Item No.

Item name

Normal condition

Item 237

Front washer

ON

AC702491AC

Windshield
washer 
hose

WINDSHIELD WIPER AND WASHER

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EXTERIOR

51-69

STEP 7. Check ETACS-ECU connector C-304 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is ETACS-ECU connector C-304 in good condition?

YES : Go to Step 8.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the windshield washer works 

normally.

STEP 8. Check the wiring harness between windshield 
washer motor connector A-54 (terminal 2) and ETACS-ECU 
connector C-304 (terminal 13).

• Check the input lines for open or short circuit.

Q: Is the wiring harness between windshield washer motor 

connector A-54 (terminal 2) and ETACS-ECU connector 
C-304 (terminal 13)in good condition?
YES : Go to Step 9.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Cables and Wire Check 

P.00E-12

. 

STEP 9. Check the wiring harness between windshield 
washer motor connector A-54 (terminal 1) and ETACS-ECU 
connector C-304 (terminal 14).

• Check the input lines for open or short circuit.

Q: Is the wiring harness between windshield washer motor 

connector A-54 (terminal 1) and ETACS-ECU connector 
C-304 (terminal 14) in good condition?
YES : Go to Step 10.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Cables and Wire Check 

P.00E-12

. 

STEP 10. 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 

Cope with Intermittent Malfunction 

P.00-15

. 

NO :  Replace the ETACS-ECU.

WINDSHIELD WIPER AND WASHER

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EXTERIOR

51-70

Inspection Procedure 11: The intelligent washing function does not work normally.

CAUTION

Before replacing the ECU, ensure that the power 
supply circuit, the ground circuit and the com-
munication circuit are normal.

.

TECHNICAL DESCRIPTION (COMMENT)

If the intelligent washer function does not work nor-
mally, the windshield wiper switch input circuit(s), the 
windshield washer switch input circuit(s) and 
ETACS-ECU may have a problem.

.

TROUBLESHOOTING HINTS

• Malfunction of column switch

• Malfunction of ETACS-ECU

• Damaged wiring harness and connectors

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A

STEP 1. Use the scan tool MB991958 to check if an 
ETACS-related diagnostic trouble code is set. 
Connect the scan tool. Refer to GROUP 54A ETACS, "Diag-
nostic function 

P.54A-729

."

Q: Is the diagnostic trouble code set?

YES : Diagnose the ETACS-ECU. Refer to GROUP 54A 

ETACS, "Diagnostic trouble code chart 

P.54A-732

."

NO :  Go to Step 2.

STEP 2. Check the ETACS customization function.
Use the ETACS-ECU customization function to check that the 
"intelligent washer" is set to "Enabled."
Q: Is the check result normal?

YES : Go to Step 3.
NO :  Use the ETACS-ECU customization function to set 

"intelligent washer" to "Enabled." (Refer to 

P.51-75

.)

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link 
connector