Mitsubishi Montero (2002-2004). Manual — part 297

SYMPTOM PROCEDURES

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SWS SYMPTOM PROCEDURES

54Bb-235

STEP 3. Check the windshield wiper motor.
(1) Disconnect windshield wiper motor connector B-12.
(2) Connect a battery to the windshield wiper motor as shown.

Then check the windshield wiper motor operates normally
at high and low speeds.

Q: Does the windshield wiper motor operate normally?

YES : Go to Step 4.
NO : Replace the windshield wiper motor. Verify that the

windshield wiper works normally.

STEP 4. Check the ground circuit to the windshield wiper
motor. Test at windshield wiper motor connector B-12.
(1) Disconnect windshield wiper motor connector B-12 and

measure the resistance available at the wiring harness side
of the connector.

(2) Measure the resistance value between terminal 5 and

ground.

• The resistance should equal 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 7.
NO : Go to Step 5.

1

2 3

4

5

1

2 3

4

5

ACX02403

B-12

AB

LOW-SPEED

HIGH-SPEED

AC205116 AC

CONNECTOR: B-12

B-12 (B)

B-12 (B)

1

2

3

4

5

ACX01576AB

CONNECTOR B-12
(HARNESS SIDE)

SYMPTOM PROCEDURES

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STEP 5. Check windshield wiper motor connector B-12 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is windshield wiper motor connector B-12 in good

condition?
YES : Go to Step 6.
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 6. Check the wiring harness between windshield
wiper motor connector B-12 (terminal 5) and ground.
Q: Is the wiring harness between windshield wiper motor

connector B-12 (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

may have loose, corroded or damaged terminals, or
terminals pushed back in the connector. Repair the
wiring harness as necessary. Verify that the
windshield wiper works normally.

STEP 7. Check the ignition switch (ACC) circuit to the
front-ECU. Test at front-ECU connector A-08X.
(1) Disconnect front-ECU connector A-08X, and measure at

the relay box side.

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal 24 and ground.

• The voltage should be approximately 12 volts (battery

positive voltage).

Q: Is the measured voltage approximately 12 volts (battery

positive voltage)?
YES : Go to Step 10.
NO : Go to Step 8.

AC205116 AC

CONNECTOR: B-12

B-12 (B)

B-12 (B)

AC205116 AD

CONNECTOR: B-12

B-12 (B)

(HARNESS SIDE)

B-12 (B)

1

2

3

4

5

AC205138

CONNECTOR: A-08X

AC

BATTERY

FRONT-ECU

A-08X

A-08X

21

22

23

24

25

27 26

28

29

30

31

ACX01611AB

CONNECTOR A-08X
(HARNESS SIDE)

SYMPTOM PROCEDURES

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STEP 8. Check front-ECU connector A-08X for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is front-ECU connector A-08X in good condition?

YES : Go to Step 9.
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 9. Check the wiring harness between front-ECU
connector A-08X (terminal 24) and the ignition switch
(ACC).

NOTE: Also check intermediate connector D-28, junction block
connectors D-208 and D-221 for loose, corroded, or damaged
terminals, or terminals pushed back in the connector. If inter-
mediate connector D-28, junction block connector D-208 or D-
221 is damaged, repair or replace the damaged component(s)
as described in GROUP 00E, Harness Connector Inspection

P.00E-2

.

Q: Is the wiring harness between front-ECU connector A-

08X (terminal 24) and the ignition switch (ACC) in good
condition?
YES : No action is necessary and testing is complete.
NO : The wiring harness may be damaged or the connector

may have loose, corroded or damaged terminals, or
terminals pushed back in the connector. Repair the
wiring harness as necessary. Verify that the
windshield wiper works normally.

AC205138

CONNECTOR: A-08X

AC

BATTERY

FRONT-ECU

A-08X

A-08X

AC205138

CONNECTOR: A-08X

AC

BATTERY

FRONT-ECU

A-08X

A-08X

AC204170

CONNECTOR : D-28

AI

2 3

27

32

28

33

16

15

4 5

19

18

29

17

34

7 8

35

22

21

9 10

30

36

31

37

25

24

23

6

20

1

14

26

11

13

12

38

ACX02285

CONNECTORS: D-208, D-221

BW

JUNCTION BLOCK (FRONT VIEW)

D-208

D-221

D-208

D-221

SYMPTOM PROCEDURES

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STEP 10. Check front-ECU connector A-08X for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is front-ECU connector A-08X in good condition?

YES : Go to Step 11.
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.

AC205138

CONNECTOR: A-08X

AC

BATTERY

FRONT-ECU

A-08X

A-08X