Mitsubishi Montero Sport (2004+). Manual - part 523

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54-79

TECHNICAL DESCRIPTION (COMMENT)
The cause may be a defective vehicle speed sensor 
circuit system or a defective speedometer. Vehicle 
speed sensor is also used by the powertrain control 
module (PCM).

.

TROUBLESHOOTING HINTS

• Malfunction of the vehicle speed sensor

• Malfunction of the combination meter (printed-cir-

cuit board or speedometer and tachometer)

• Malfunction of the powertrain control module 

(PCM)

• Damaged harness wires or connectors

.

DIAGNOSIS 

Required Special Tools:

• MB991223: Harness Set

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991911: MUT-III Main Harness B (Vehicles without 

CAN communication system)

STEP 1. Using scan tool MB991958, read the MFI system 
diagnostic trouble code.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to "LOCK" (OFF) position before connect-
ing or disconnecting scan tool.
(1) Connect scan tool MB991958 to the data link connector. 
(2) Turn the ignition switch to the "ON" position.
(3) Read the MFI system diagnostic trouble code.
Q: Is MFI system DTC P0500 output?

YES : Go to Step 15.
NO :  Go to Step 2.

STEP 2. Check the odometer and trip odometer operation.
Q: Do the odometer and trip odometer work correctly?

YES : Go to Step 12.
NO :  Go to Step 3.

AK303629AB

MB991911

MB991827

MB991824 

16-PIN

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54-80

STEP 3. Check the combination meter power supply circuit 
at the combination meter connector C-04.

(1) Disconnect the combination meter connector C-04.
(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal 24 and ground.

• The measured value should be approximately 12 volts 

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES : Go to Step 6.
NO :  Go to Step 4.

STEP 4. Check combination meter connector C-04 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.

Q:  Is combination meter connector C-04 in good 

condition?
YES : Go to Step 5.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. The speedometer 

should work normally.

STEP 5. Check the harness wires between combination 
meter connector C-04 (terminal No.24) and ignition switch 

(IG1).

AC201897

21

23

24

27 26 25

22

28

30

31

29

32

CONNECTOR: C-04

AB

C-04: HARNESS SIDE 
CONNECTOR

C-04

AC002753 AB

CONNECTOR C-04
(HARNESS SIDE)

AC201897

21

23

24

27 26 25

22

28

30

31

29

32

CONNECTOR: C-04

AB

C-04: HARNESS SIDE 
CONNECTOR

C-04

AC201897

21

23

24

27 26 25

22

28

30

31

29

32

CONNECTOR: C-04

AB

C-04: HARNESS SIDE 
CONNECTOR

C-04

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54-81

NOTE: After checking junction block connectors D-06 and 
D-08, check the wires. If junction block connectors D-06 and 
D-08 are damaged, repair or replace them. Refer to GROUP 
00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the harness wires between combination meter 

connector C-04 (terminal No.24) and ignition switch 
(IG1) in good condition?
YES : There is no action to be taken.
NO :  Repair them. The speedometer should work normally.

STEP 6. Check the combination meter (speedometer) 
ground circuit at the combination meter connector C-04.

(1) Disconnect the combination meter connector C-04.

(2) Measure the resistance between terminal 31 and ground.

• The measured value should be 2 ohms or less.

Q: Does the measured resistance value correspond with 

this range?
YES : Go to Step 9.
NO :  Go to Step 7.

AC200772

1
8

3

4

5

7 6

10

15

16

14

12

13

11

9

2

COMPONENT SIDE

CONNECTOR: D-06

D-06

JUNCTION BLOCK
 (FRONT)

AB

AC200773

M

3

1

4

2

CONNECTOR: D-08

D-08

COMPONENT SIDE

AB

AC201897

21

23

24

27 26 25

22

28

30

31

29

32

CONNECTOR: C-04

AB

C-04: HARNESS SIDE 
CONNECTOR

C-04

AC002754 AC

C-04 HARNESS CONNECTOR:
COMPONENT SIDE

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54-82

STEP 7. Check combination meter connector C-04 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.

Q: Is combination meter connector C-04 in good 

condition?
YES : Go to Step 8.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. The speedometer 

should work normally.

STEP 8. Check the harness wire between combination 
meter connector C-04 (terminal No.31) and ground.

Q: Is the harness wire between combination meter 

connector C-04 and ground in good condition?
YES : There is no action to be taken.
NO :  Repair it. The speedometer should work normally.

STEP 9. Check the combination meter power supply circuit 
at combination meter connector C-02.

(1) Disconnect combination meter connector C-02.

(2) Measure the voltage between terminal 53 and ground.

• The measured value should be approximately 12 volts 

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES : Go to Step 12.
NO :  Go to Step 10.

AC201897

21

23

24

27 26 25

22

28

30

31

29

32

CONNECTOR: C-04

AB

C-04: HARNESS SIDE 
CONNECTOR

C-04

AC201897

21

23

24

27 26 25

22

28

30

31

29

32

CONNECTOR: C-04

AB

C-04: HARNESS SIDE 
CONNECTOR

C-04

AC201839

CONNECTOR: C-02

AC

51

52

55 54 53

56

58

59

57

60

61

62

COMPONENT SIDE

C-02 (B)

AC002752

AC

C-02 
HARNESS CONNECTOR:
COMPONENT SIDE