Mitsubishi Outlander XL. Manual — part 845
INSPECTION PROCEDURE 1: The windshield wipers do not work at all.
M15102100008USA0000010001
WINDSHIELD
WIPER
MOTOR
ACC
RELAY3
WINDSHIELD
WIPER
AUTOMATIC
STOP RELAY
CIRCUIT
BRAKER
ZC603306
WINDSHIELD
WIPER
SPEED
SWITCHING
RELAY
ETACS-ECU
C-309
A-08
BLA
CK-
WHITE
BLUE
GREEN
YELLO
W
WHITE
BLA
CK
1
4
3
5
Windshield Wiper Power Supply Circuit
FUSIBLE
LINK
34
0000
WIPER AND WASHER
51B-13
DIAGNOSIS
ZC6008720003
Connector: A-08
ZC6008780022
Connector: C-304
ZC600878
Connector: C-309
C-309 (B)
0009
CIRCUIT OPERATION
⦆
The windshield wiper and 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 wiper and washer switch
"ON" signal to the ETACS-ECU, the ETACS-ECU
turns on the relay (incorporated in the ETACS-
ECU), thus causing the windshield wiper and
washer motor to be turned on.
⦆
If the LIN communication line is defective, the
ETACS-ECU operates windshield wiper motor by
using the other communication lines (wiper backup
circuit) instead of that line. In this case, the
windshield wiper works at low speed regardless of
the windshield wiper and washer switch positions
("LO" or "HIGH").
TECHNICAL DESCRIPTION (COMMENT)
If the windshield wiper does not work at all, the
windshield wiper motor, column switch (windshield
wiper and washer switch) or the ETACS-ECU may be
defective.
TROUBLESHOOTING HINTS
⦆
Trouble in input signal system
⦆
The wiring harness or connectors may have loose,
corroded, or damaged terminals, or terminals
pushed back in the connector
⦆
The wiper 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
51B-14
WIPER AND WASHER
DIAGNOSIS
STEP 1. Use the scan tool MB991958 to check if an ETACS-
related diagnostic trouble code is set.
ZC501967
AC404789
ZC5019680000
MB991824
MB991827
MB991910
Data link
connector
Connect the scan tool. Refer to GROUP 54Ad ETACS,
"Diagnostic function P.54Ad-5."
Q:Is the diagnostic trouble code set?
YES:
Diagnose the ETACS-ECU. Refer to GROUP 54Ad ETACS,
"Diagnostic trouble code chart P.54Ad-8."
NO:
Go to Step 2.
STEP 2. Check the input signal related to the windshield
wiper operation.
⦆
Ignition switch: ACC
Item No.
Item name
Normal condition
Item 288
ACC switch
ON
Item 235
Front wiper ACT
ON
OK: Normal condition is displayed.
Q:Is the check result normal?
NO:
Go to Step 3.
YES:
Refer to GROUP 54Ad - ETACS, Input signal
STEP 3. Check windshield wiper motor connector A-08 for
loose, corroded or damaged terminals, or terminals pushed
back in the connector.
Q:Is windshield wiper motor connector A-08 in good
condition?
YES:
Go to Step 4.
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 4. Check the windshield wiper motor.
(1)
Disconnect windshield wiper motor connector A-08.
WIPER AND WASHER
51B-15
DIAGNOSIS
4
5
3
1 2
4
5
3
1 2
4
5
3
1 2
ZC6002730000
Operation check
Low speed
High speed
(2)
Connect a battery to the windshield wiper motor as shown.
Then check that the windshield wiper motor operates
normally at high and low speeds.
Q:Does the windshield wiper motor operate normally?
YES:
Go to Step 5.
NO:
Replace the windshield wiper motor. Verify that the
windshield wiper works normally.
STEP 5. Check the ground circuit to the windshield wiper
motor. Measure the resistance at the windshield wiper
motor connector A-08.
(1)
Disconnect windshield wiper motor connector A-08 and
measure the resistance available at the wiring harness side
of the connector.
ZC6033610000
Harness side: A-08
(2)
Measure the resistance value between terminal 5 and
ground.
⦆
The resistance should be 2 Ω or less.
Q:Is the measured resistance 2 Ω or less?
YES:
Go to Step 7.
NO:
Go to Step 6.
STEP 6. Check the wiring harness between windshield
wiper motor connector A-08 (terminal 5) and ground.
Q:Is the wiring harness between windshield wiper motor
connector A-08 (terminal 5) and ground in good
condition?
YES:
No action is necessary and testing is complete.
NO:
The wiring harness may be damaged or the connector
(s) may have loose, corroded or damaged terminals, or
terminals pushed back in the connector. Repair the wiring
harness as necessary. Verify the windshield wiper works
normally.
51B-16
WIPER AND WASHER
DIAGNOSIS
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