Mitsubishi Montero (2004+). Manual — part 526
COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR
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CHASSIS ELECTRICAL
54A-73
4. Check if the speedometer indicator range is within the
standard values.
Standard value: <Vehicles for U.S.A.>
Standard value: <Vehicles for Canada.>
5. If not to the standard value, inspect for proper tire size. If not
correct, replace tires with original size tires and retest. If
correct, replace the speedometer. If still not to standard
value, replace vehicle speed sensor.
TACHOMETER CHECK
M1543001000304
1. Attach an external high quality tachometer to the engine
speed detection connector on the harness side (such as
with a paper clip).
NOTE: For tachometer check, use an external high quality
inductive tachometer.
2. Compare the readings of the vehicle tachometer and the
external tachometer at every engine speed, and check if the
variations are within the standard values.
Standard value:
STANDARD INDICATION
km/h (mph)
ALLOWANCE RANGE
km/h (mph)
16 (10)
14
− 18 (8.5 − 11.5)
40 (25)
38
− 42 (23.5 − 26.5)
80 (50)
78
− 83 (48.5 − 51.5)
120 (75)
118
− 123 (73.5 − 76.5)
161 (100)
158
− 165 (98.5 − 102.5)
STANDARD INDICATION
km/h
ALLOWANCE RANGE
km/h
20
19
− 24
40
40
− 44
80
80
− 85
120
120.5
− 125.5
160
160.5
− 165.5
Engine speed (r/min)
Indication allowance of
tachometer r/min
700
600
− 800
2000
1900
− 2150
3000
2900
− 3225
4000
3875
− 4275
5000
4875
− 5325
6000
5875
− 6200
ACX00776 AB
TACHOMETER
ENGINE SPEED
DETECTION TERMINAL
PAPER CLIP
COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR
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CHASSIS ELECTRICAL
54A-74
FUEL LEVEL SENSOR CHECK
M1543001300059
Remove the fuel level sensor from fuel tank (Refer to GROUP
13B, Fuel Tank
FUEL LEVEL SENSOR RESISTANCE
1. Check that resistance value between the fuel gauge terminal
and ground terminal is at the standard value when the fuel
level sensor float is between point
Standard value:
• Point "F": 3 − 10.1
• Point "E": 90 − 110
2. Check that resistance value changes smoothly when the
float moves slowly between point
3. If all checks are correct, go to fuel level sensor float height
check. If any check is not correct, replace the fuel level
sensor.
FUEL LEVEL SENSOR FLOAT HEIGHT
1. Move the float and measure height A at point "F" (highest)
and B at point "E" (lowest).
Standard value:
• A: 11.9 mm (0.47 inch)
• B: 195.2 mm (7.69 inches)
2. Adjust the float arm to the standard value, then go to the
thermistor check.
ACX01779 AC
POINT "F "
POINT "E "
ACX01791AB
A
B
POINT "F"
POINT "E"
COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR
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CHASSIS ELECTRICAL
54A-75
THERMISTOR
CAUTION
After finishing this test, wipe the unit dry and install it in
the fuel tank.
1. Connect the fuel level sensor (thermistor) to the battery via a
test light (12 V
− 3.4 W). Immerse the thermistor in water.
2. Condition is good if the light goes off when the thermistor is
immersed in water and comes on when it is taken out of
water.
3. If all check result is correct, the fuel level sensor is OK. If
either check result is not correct, replace the fuel level
sensor.
ENGINE COOLANT TEMPERATURE GAUGE UNIT
CHECK
M1543001500280
1. Drain the engine coolant. (Refer to GROUP 00,
Maintenance Service
− Engine Coolant
2. Remove the engine coolant temperature gauge unit.
3. Immerse the unit in 83
°C (181°F) water to measure the
resistance.
Standard value: 65.2
± 75.2 Ω
Reference value
4. If within the standard value, the sensor is OK. Reinstall it,
then check the engine coolant temperature gauge (Refer to
). If not within the standard value, replace it.
5. Also check, apply the 3M
AAD part number 8731,
Locktite
242 or equivalent around the threads of the engine
coolant temperature gauge unit.
6. Add engine coolant. (Refer to GROUP 00, Maintenance
Service
− Engine Coolant
1
3
2
AC205525
GROUND
THERMISTOR
THERMISTOR
ILLUMINATED
NOT
ILLUMINATED
AB
Temperature
°C (°F)
Resistance
Ω
50 (122)
231
− 247
105 (221)
29.9
− 39.9
122 (252)
17.5
− 25.5
ACX00779AB
THERMOMETER
OHMMETER
ACX00780 AB
16 ± 2 N·m
11 ± 1 ft-lb
COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR
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CHASSIS ELECTRICAL
54A-76
COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR
REMOVAL AND INSTALLATION
M1543002900195
ACX01266
ACX01792 AC
INSTRUMENT PANEL
SECT A - A
A
A
A
1
2
1
CLIP
A
3
COMBINATION METER REMOVAL
STEPS
1. METER BEZEL
2. COMBINATION METER
VEHICLE SPEED SENSOR
REMOVAL
3. VEHICLE SPEED SENSOR
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