Mitsubishi Montero (2002-2004). Manual - part 468

 

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Mitsubishi Montero (2002-2004). Manual - part 468

 

 

COMBINATION METERS ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54A-43

.

CIRCUIT OPERATION

• The ignition switch (IG1) circuit is the power sup-

ply for the fuel gauge.

• When the float in the fuel level sensor moves, the 

circuit resistance will change.

• The fuel gauge needle is moved by a change in 

the circuit current.

.

TECHNICAL DESCRIPTION (COMMENT)
If there is an open in the (IG1) circuit, the fuel gauge 
needle will not move at all. If there is an open in the 
ground circuit, the fuel gauge needle will move down 
to empty.

.

TROUBLESHOOTING HINTS

• Malfunction of the fuel pump module (fuel level 

sensor)

• Malfunction of the combination meter (printed-cir-

cuit board or fuel gauge assembly)

DIAGNOSIS

Required Special Tool:
MB991223: Harness Set

STEP 1. Check the fuel gauge by observing the other 
meters.
Check to see that the speedometer, tachometer and water ther-
mometer operate normally.
Q:  Do all other meters operate?

 YES <other meters all operate> : Go to Step 2.
 NO <one of the meters do not operate> : Refer to 

INSPECTION PROCEDURE 5 

P.54A-55

.

AC204170

CONNECTORS : D-03, D-29, D-32

DG

D-03(GR)

D-29

D-32(GR)

AC204171

CONNECTOR : D-111

AG

AC204178

CONNECTOR : F-07

AO

F-07(B)

AC204179

CONNECTOR : G-03

BB

G-03(B)

COMBINATION METERS ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54A-44

STEP 2. Check the fuel level sensor.
Check to see if the fuel level sensor is normal. Refer to 

P.54A-

63

.

Q:  Is the fuel level sensor normal?

YES : Go to Step 3.
NO :  Replace the fuel level sensor. The fuel gauge should 

now operate normally.

STEP 3. Measure at fuel level sensor connector G-03 in 
order to the ground circuit to the fuel level sensor.
(1) Disconnect fuel level sensor connector G-03, and measure 

at the wiring harness side.

(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 6.
NO :  Go to Step 4.

STEP 4. Check fuel level sensor connector G-03 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is fuel level sensor connector G-03 in good condition?

YES : Go to Step 5.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

The fuel gauge should now operate 

normally.

AC204179

CONNECTOR : G-03

AU

G-03(B)

G-03(B)

HARNESS
SIDE

2

3

1

AC204738 EI

HARNESS SIDE: G-03

2

3

1

AC204179

CONNECTOR : G-03

AU

G-03(B)

G-03(B)

HARNESS
SIDE

2

3

1

COMBINATION METERS ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54A-45

STEP 5. Check the wiring harness between fuel level 
sensor connector G-03 (terminal 2) and ground.

NOTE: Also check intermediate connectors F-07. If intermedi-
ate connector F-07 is damaged, repair or replace the connector 
as described in GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between fuel level sensor 

connector G-03 (terminal 2) and ground in good 
condition?
YES : 
There is no action to be taken.
NO :  Repair the wiring harness. The fuel gauge should now 

operate normally.

STEP 6. Measure at combination meter connector D-32 in 
order to the ground circuit to the fuel level sensor.
(1) Disconnect combination meter connector D-32 and 

measure at the wiring harness side.

(2) Measure the resistance value between terminal 11 and 

ground.

• The resistance should equal 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 9.
NO :  Go to Step 7.

AC204179

CONNECTOR : G-03

AU

G-03(B)

G-03(B)

HARNESS
SIDE

2

3

1

AC204178

CONNECTOR : F-07

AN

F-07(B)

F-07(B)

7

6

5

1 2 3 4

8

AC204170

CONNECTOR : D-32

CU

HARNESS SIDE

D-32(GR)

D-32(GR)

3

4

16

17

1

2

14

15

5

7 6

19

13

8

9

21

22

20

18

23

10

11

24

25

12

AC204738 EF

HARNESS SIDE: D-32

3

4

16

17

1

2

14

15

5

7 6

19

13

8

9

21

22

20

18

23

10

11

24

25

12

COMBINATION METERS ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54A-46

STEP 7. Check combination meter connector D-32 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is combination meter connector D-32 in good 

condition?
YES : 
Go to Step 8.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

The fuel gauge should now operate 

normally.

STEP 8. Check the wiring harness between combination 
meter connector D-32 (terminal 11) and ground.
Q: Is the wiring harness between combination meter 

connector D-32 (terminal 11) and ground in good 
condition?
YES : 
There is no action to be taken.
NO :  Repair the wiring harness. The fuel gauge should now 

operate normally.

AC204170

CONNECTOR : D-32

CU

HARNESS SIDE

D-32(GR)

D-32(GR)

3

4

16

17

1

2

14

15

5

7 6

19

13

8

9

21

22

20

18

23

10

11

24

25

12

AC204170

CONNECTOR : D-32

CU

HARNESS SIDE

D-32(GR)

D-32(GR)

3

4

16

17

1

2

14

15

5

7 6

19

13

8

9

21

22

20

18

23

10

11

24

25

12

 

 

 

 

 

 

 

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