Mitsubishi Montero (2004+). Manual — part 739

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-213

INSPECTION PROCEDURE F-1: Sunroof: Sunroof does not operate.

Sunroof Motor Assembly Power Supply Circuit

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-214

.

CIRCUIT OPERATION

• The sunroof motor assembly is energized

through fusible link (1) and (4).

• When the ignition switch (IG2) signal is on, the

sunroof motor assembly is ready to operate.

.

TROUBLESHOOTING HINTS

• The sunroof switch may be defective

• The sunroof motor assembly may be defective

• The wiring harness or connectors may have

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

DIAGNOSIS

Required Special Tool:

• MB991223: Harness Set

STEP 1. Check the sunroof motor assembly connector
F-02 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q: Is sunroof motor assembly connector F-02 in good

condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. The sunroof should now work normally.

ACX02274

FUSIBLE LINK (1), (4)

FUSIBLE LINK (1)

AH

BATTERY

FUSIBLE LINK (4)

AC000758

CONNECTORS: D-03, D-04, D-28, D-30, D-125

AV

D-125

D-28

D-30

D-04

D-03

ACX02285

CONNECTORS: D-207, D-208, D-210, D-221

AB

D-208

D-207

D-210

D-221

JUNCTION BLOCK (FRONT VIEW)

AC204484

AG

CONNECTORS: F-01, F-02, F-24

F-02

F-01(B)

F-24

AC203849AD

CONNECTOR: F-02

F-02

10

1

2

3

4

5

6

7

8

9

(HARNESS SIDE)

F-02

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-215

STEP 2. Check the fusible link (4) line of power supply
circuit to the sunroof motor assembly. Test at sunroof
motor assembly connector F-02.
(1) Disconnect sunroof motor assembly connector F-02 and

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

(2) Measure the voltage between terminal 1 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 4.
NO : Go to Step 3.

STEP 3. Check the harness wires between sunroof motor
assembly connector F-02 (terminal 1) and fusible link (4).

AC203849AD

CONNECTOR: F-02

F-02

10

1

2

3

4

5

6

7

8

9

(HARNESS SIDE)

F-02

10

1

2

3

4

5

6

7

8

9

AC106228

CONNECTOR F-02
(HARNESS SIDE)

AD

ACX02274

FUSIBLE LINK (4)

AD

BATTERY

AC203849AD

CONNECTOR: F-02

F-02

10

1

2

3

4

5

6

7

8

9

(HARNESS SIDE)

F-02

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-216

NOTE: Also check intermediate connectors F-24, D-26 and
D-28 for loose, corroded or damaged terminals, or terminals
pushed back in the connectors. If intermediate connector F-24,
D-26 or D-28 is damaged, repair or replace the damaged com-
ponent(s) as described in GROUP 00E, Harness Connector
Inspection

P.00E-2

.

Q: Is the wiring harness between sunroof motor assembly

connector F-02 (terminal 1) and fusible link (4) 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. The sunroof
function should now work normally.

STEP 4. Check the ignition switch (IG2) circuit to the
sunroof motor assembly. Test at sunroof motor assembly
connector F-02.
(1) Disconnect sunroof motor assembly connector F-02 and

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

(2) Turn the ignition switch to “ON” position.

(3) Measure the voltage between terminal 2 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 6.
NO : Go to Step 5.

AC204484

AF

CONNECTOR: F-24

F-24

F-24

AC000758

CONNECTORS: D-26, D-28

AL

D-26

D-28

AC203849AD

CONNECTOR: F-02

F-02

10

1

2

3

4

5

6

7

8

9

(HARNESS SIDE)

F-02

10

1

2

3

4

5

6

7

8

9

AC106230

CONNECTOR F-02
(HARNESS SIDE)

AD