Mitsubishi Montero Sport (2004+). Manual - part 526

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54-91

STEP 19. Check vehicle speed sensor connector B-09 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.

Q: Is vehicle speed connector B-09 in good condition?

YES : Go to Step 20.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. The speedometer 

should work normally.

STEP 20. Check the harness wire between vehicle speed 
sensor connector B-09 (terminal No.2) and ground.

Q: Is the harness wire between vehicle speed sensor 

connector B-09 (terminal No.2) and ground in good 
condition?
YES : There is no action to be taken.
NO :  Repair it. The speedometer should work normally.

AC003458 AC

CONNECTOR: B-09 
<RWD>

B-09 (B)

1

2

3

B-09: HARNESS 
SIDE CONNECTOR

AC201841

3 2 1

CONNECTOR: B-09 

AB

B-09: HARNESS 
SIDE CONNECTOR

<4WD>

B-09 (B)

AC003458 AC

CONNECTOR: B-09 
<RWD>

B-09 (B)

1

2

3

B-09: HARNESS 
SIDE CONNECTOR

AC201841

3 2 1

CONNECTOR: B-09 

AB

B-09: HARNESS 
SIDE CONNECTOR

<4WD>

B-09 (B)

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54-92

STEP 21. Check the vehicle speed sensor input signal 
circuit at the vehicle speed sensor connector B-09.

(1) Disconnect vehicle speed sensor connector B-09.
(2) Turn the ignition switch to the "ON" position.

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

• The measured value should be approximately 9 volts.

Q: Does the measured voltage correspond with this range?

More than approximately 9 volts : Replace the vehicle 

speed sensor. The speedometer should work 
normally.

Approximately nine volts : Go to Step 22.

STEP 22. Recheck for malfunction.
Q: Is a malfunction eliminated?

YES : The procedure is complete. If no malfunctions are 

found in all steps, an intermittent malfunction is 
suspected (Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points 

− How to 

Cope with Intermittent Malfunction 

P.00-7

).

NO :  Replace the speedometer.

AC003458 AC

CONNECTOR: B-09 
<RWD>

B-09 (B)

1

2

3

B-09: HARNESS 
SIDE CONNECTOR

AC201841

3 2 1

CONNECTOR: B-09 

AB

B-09: HARNESS 
SIDE CONNECTOR

<4WD>

B-09 (B)

ACX01759AE

B-09 
HARNESS CONNECTOR:
COMPONENT SIDE 

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54-93

INSPECTION PROCEDURE 2: Tachometer does not Work.

JUNCTION 
BLOCK

IGNITION
SWITCH (IG1)

IGNITION
POWER
TRANSISTOR

IGNITION
SWITCH (IG1)

IGNITION
COIL (1)

SPARK
PLUGS

SPARK
PLUGS

SPARK
PLUGS

IGNITION
COIL (2)

IGNITION
COIL (3)

COMBINATION METER

TACHO

JOINT 
CONNECTOR (4)

POWERTRAIN
CONTROL
MODULE
(PCM)

Tachometer Circuit

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54-94

.

CIRCUIT OPERATION

• The tachometer power is supplied from the igni-

tion switch (IG1) circuit.

• The tachometer detects the ignition signal by the 

ignition power transistor.

.

TECHNICAL DESCRIPTION (COMMENT)
The ignition signal may not be sent from the engine, 
or there may be a malfunction in the power supply or 
ground circuit.

.

TROUBLESHOOTING HINTS

• Malfunction of the combination meter (printed cir-

cuit board or tachometer)

• Damaged harness wires or connectors

.

AC004162

AC

CONNECTOR: A-05

A-05

AC003465

CONNECTORS: C-04, C-05

AB

C-04

C-05

AC003464 AC

CONNECTOR: C-16

C-16

AC003466 AC

CONNECTOR: C-71

C-71

AC003461AB

CONNECTOR: D-06

JUNCTION BLOCK  (FRONT)

AC003457AE

CONNECTOR: D-08

JUNCTION BLOCK (REAR)

D-08