Mitsubishi Montero (2002-2004). Manual — part 307

SYMPTOM PROCEDURES

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SWS SYMPTOM PROCEDURES

54Bb-275

STEP 6. Check the rear wiper motor.
(1) Disconnect the rear wiper motor connector I-07.
(2) Connect a battery to the wiper motor as shown in the

illustration and inspect the motor operation.

Q: Is the rear wiper motor in good condition?

YES : No action is necessary and testing is complete.
NO : Replace the rear wiper motor. Verify that the rear

wiper works normally.

STEP 7. Check the ground circuit to the rear wiper motor.
Test at rear wiper motor connector I-07.
(1) Disconnect rear wiper motor connector I-07 and measure

the resistance available at the harness side of the
connector.

(2) Measure the resistance value between terminal 1 and

ground.

• The resistance should equal 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 6.
NO : Go to Step 8.

1 2 3 4

ACX02409AB

I-07

ACX02293

CONNECTOR: I-07

AQ

I-07(B)

I-07(B)

1 2 3 4

4 3 2 1

ACX01579AB

CONNECTOR I-07
(HARNESS SIDE)

SYMPTOM PROCEDURES

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SWS SYMPTOM PROCEDURES

54Bb-276

STEP 8. Check rear wiper motor connector I-07 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is rear wiper motor connector I-07 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 rear wiper
motor connector I-07 (terminal 1) and ground.
Q: Is the wiring harness between rear wiper motor

connector I-07 (terminal 1) 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.

ACX02293

CONNECTOR: I-07

AR

I-07(B)

I-07(B)

(HARNESS SIDE)

1

2

3

4

ACX02293

CONNECTOR: I-07

AR

I-07(B)

I-07(B)

(HARNESS SIDE)

1

2

3

4

SYMPTOM PROCEDURES

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SWS SYMPTOM PROCEDURES

54Bb-277

INSPECTION PROCEDURE H-2: Rear Wiper and Washer: Rear wiper does not stop at the
predetermined park position.

NOTE: This troubleshooting requires use of scan tool
MB991502 and SWS monitor kit MB991862. For
details of how to use the SWS monitor, refer to "How
to use SWS monitor

P.54Ba-8

."

.

TECHNICAL DESCRIPTION (COMMENT)
If the rear wiper does not stop at predetermined park
position, the rear wiper motor or the ETACS-ECU
may be defective.

.

TROUBLESHOOTING HINTS

• The rear wiper motor may be defective

• The ETACS-ECU may be defective

• The wiring harness may be damaged of the con-

nectors may have loose, corroded or damaged
terminals, or terminals pushed back in the con-
nector

Rear Wiper Drive Circuit

SYMPTOM PROCEDURES

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SWS SYMPTOM PROCEDURES

54Bb-278

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB991502: Scan Tool (MUT-II)

Check the input signal (by using the pulse check mode of
the monitor.)
Check the automatic stop signal, which the rear wiper motor
sends to the ETACS-ECU.
NOTE: When the rear wiper is operated, a signal is sent to the
ETACS-ECU.

CAUTION

To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Operate scan tool MB991502 according to the procedure

below to display "PULSE CHECK."

1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "PULSE CHECK."

(3) Check that scan tool MB991502 sounds.
Q: Does scan tool MB991502 sound when the rear wiper

switch is operated?
YES : Replace the ETACS-ECU. The rear wiper should stop

automatically at the predetermined park position.

NO : Refer to Inspection Procedure P-8 "ETACS-ECU does

not receive an automatic stop signal from the wiper
motor

P.54Bc-131

."

AC101570AB

MB991502

16 PIN

COLUMN

SWITCH

CONNECTOR