Mitsubishi Montero (2004+). Manual - part 790

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-417

STEP 9. Check fog light (RH) connector A-31 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is fog light (RH) connector A-31 in good condition?

YES : Go to Step 10.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the fog lights illuminate normally.

STEP 10. Check the ground circuit to the fog light (RH). 
Test at fog light (RH) connector A-31.
(1) Disconnect fog light (RH) connector A-31 and measure the 

resistance available at the wiring harness side of the 
connector.

(2) Measure the resistance value between terminal 2 and 

ground.

• The resistance should equal 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 12.
NO :  Go to Step 11.

STEP 11. Check the wiring harness between fog light (RH) 
connector A-31 (terminal 2) and ground.

AC204166

CONNECTOR : A-31

HARNESS 
SIDE

A-31(B)

A-31(B)

AD

1

2

AC204166

CONNECTOR : A-31

HARNESS 
SIDE

A-31(B)

A-31(B)

AD

1

2

AC100270

1

2

AC

CONNECTOR A-31
(HARNESS SIDE)

AC204166

CONNECTOR : A-31

HARNESS 
SIDE

A-31(B)

A-31(B)

AD

1

2

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-418

NOTE: Also check intermediate connector A-25 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector A-25 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 fog light (RH) connector 

A-31 (terminal 2) 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 fog lights illuminate normally.

STEP 12. Check joint connector (2) A-15 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector. 
Q: Is joint connector (2) A-15 in good condition?

YES : Go to Step 13.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the fog lights illuminate normally.

AC204167

CONNECTOR : A-25

A-25(B)

A-25(B)

AK

4

2

3

1

AC204167

CONNECTOR : A-15

AD

14

13

4

1112

5

3

10

8 9

2

7

1

6

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-419

STEP 13. Check the wiring harness between joint 
connector (2) A-15 (terminal 2) and fog light (RH) 
connector A-31 (terminal 1).

NOTE: Also check intermediate connector A-25 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector A-25 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 joint connector (2) A-15 

(terminal 2) and fog light (RH) connector A-31 (terminal 
1) 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 fog lights illuminate normally.

AC204185

CONNECTORS : A-15,  A-25

A-15

AL

A-15

A-25

A-25(B)

14

13

4

1112

5

3

10

8 9

2

7

1

6

4

2

3

1

AC204166

CONNECTOR : A-31

HARNESS 
SIDE

A-31(B)

A-31(B)

AD

1

2

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-420

STEP 14. Check the fog light indicator light bulb.
(1) Remove the fog light indicator light bulb.
(2) Verify that the fog light indicator light bulb is not damaged or 

burned out.

Q: Is the fog light indicator light bulb in good condition?

YES : Go to Step 15.
NO :  Replace the fog light indicator light bulb. Verify that 

the fog light indicator light illuminates normally.

STEP 15. Check combination meter connector D-03 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is combination meter connector D-03 in good 

condition?
YES : Go to Step 16.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the fog light indicator light 

illuminates normally.

STEP 16. Check the ground circuit to the fog light indicator 
light. Test at combination meter connector D-03.
(1) Disconnect fog light indicator light connector D-03 and 

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

(2) Measure the resistance value between terminal 57 and 

ground.

• The resistance should equal 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 18.
NO :  Go to Step 17.

AC204170

CONNECTOR : D-03

AC

D-03(GR)

HARNESS 
SIDE

51

52

61 60

53

54

56

57

55

63

66 65 64

59

62

58

67

D-03(GR)

AC204170

CONNECTOR : D-03

AC

D-03(GR)

HARNESS 
SIDE

51

52

61 60

53

54

56

57

55

63

66 65 64

59

62

58

67

D-03(GR)

61

62

63

64

65

66

57

58

59

60

51

52

53

54

55

56

67

AC100271AB

CONNECTOR D-03
(HARNESS SIDE)