Mitsubishi Montero (2004+). Manual - part 768

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-329

NOTE: Also check intermediate connector F-10 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector F-10 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 rear light (LH) connector 

G-16 (terminal 3) 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 that 
the taillights illuminate normally.

STEP 26. Check the taillight bulb (LH).
(1) Remove the taillight bulb (LH).
(2) Verify that the taillight bulb (LH) is not damaged or burned 

out.

Q: Is the taillight bulb (LH) in good condition?

YES : Go to Step 27.
NO :  Replace the taillight bulb (LH). Verify that the taillights 

(LH) illuminates normally.

STEP 27. Check rear light (LH) connector G-16 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is rear light (LH) connector G-16 in good condition?

YES : Go to Step 28.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the taillights (LH) illuminates 

normally.

AC204178

CONNECTOR : F-10

AD

F-10(GR)

F-10(GR)

3

1

2

4

5

6

AC204179

CONNECTOR : G-16

AH

HARNESS SIDE

G-16(B)

G-16(B)

3

4

2

1

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-330

STEP 28. Check the ground circuit to the taillight (LH). Test 
at rear light (LH) connector G-16. 
(1) Disconnect rear light (LH) connector G-16 and measure the 

resistance available at the wiring harness side of the 
connector.

(2) Measure the resistance value between terminal 3 and 

ground.

• The resistance should equal 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 30.
NO :  Go to Step 29.

STEP 29. Check the wiring harness between rear light (LH) 
connector G-16 (terminal 3) and ground.

NOTE: Also check intermediate connector F-10 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector F-10 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 rear light (LH) connector 

G-16 (terminal 3) and ground in good condition?
YES : Replace the rear combination light socket (LH). Verify 

that the taillight (LH) illuminates normally.

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 that 
the taillights (LH) illuminates normally.

AC204179

CONNECTOR : G-16

AH

HARNESS SIDE

G-16(B)

G-16(B)

3

4

2

1

4

1

2

3

AC100265AB

CONNECTOR G-16
(HARNESS SIDE)

AC204179

CONNECTOR : G-16

AH

HARNESS SIDE

G-16(B)

G-16(B)

3

4

2

1

AC204178

CONNECTOR : F-10

AD

F-10(GR)

F-10(GR)

3

1

2

4

5

6

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-331

STEP 30. Check front-ECU connector A-07X for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is front-ECU connector A-07X in good condition?

YES : Go to Step 31.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the taillights (LH) illuminates 

normally.

STEP 31. Check the wiring harness between rear light (LH) 
connector G-16 (terminal 1) and front-ECU connector 
A-07X (terminal 8).

AC204183

CONNECTOR : A-07X

AB

2 1

3

4

6

7

8

9

5

11 10

RELAY BOX SIDE

AC204183

CONNECTOR : A-07X

AB

2 1

3

4

6

7

8

9

5

11 10

RELAY BOX SIDE

AC204179

CONNECTOR : G-16

AH

HARNESS SIDE

G-16(B)

G-16(B)

3

4

2

1

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-332

NOTE: Also check intermediate connectors D-28, D-111 and 
F-10 for loose, corroded, or damaged terminals, or terminals 
pushed back in the connector. If intermediate connector D-28, 
D-111 or F-10 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 rear light (LH) connector 

G-16 (terminal 1) and front-ECU connector A-07X 
(terminal 8) in good condition?
YES : Replace the rear combination light socket (LH). Verify 

that the taillights (LH) illuminates normally.

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 that 
the taillights (LH) illuminates normally.

STEP 32. Check the taillight bulb (RH).
(1) Remove the taillight bulb (RH).
(2) Verify that the taillight bulb (RH) is not damaged or burned 

out.

Q: Is the taillight bulb (RH) in good condition?

YES : Go to Step 33.
NO :  Replace the taillight bulb (RH). Verify that the taillight 

(RH) illuminates normally.

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

AC204171

CONNECTOR : D-111

BH

9

8

6 7

5

3 4

20

32

21

33

43

17 18

30

41

16

29

28

39 40

13

25

12

24

35 36

14

26

37

15

27

38

19

31

42

1

10

22

2

11

23

34

AC204178

CONNECTOR : F-10

AD

F-10(GR)

F-10(GR)

3

1

2

4

5

6