Mitsubishi Montero Sport (2004+). Manual - part 711

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-409

DATA LIST REFERENCE TABLE

M1231109100122

MUT-III 
SCAN TOOL 
DISPLAY

ITEM 
NO.

INSPECTION ITEM INSPECTION 

REQUIREMENT

NORMAL 
CONDITION

2ND SOL 
DUTY

33

Second solenoid 
valve duty %

Transmission 
range: L

Driving at constant 
speed of 10 km/h 
(6.2 mph) in 1st gear

100%

Transmission 
range: 2

Driving at constant 
speed of 30 km/h (19 
mph) in 2nd gear

0%

Transmission 
range: 3

Driving at constant 
speed of 50 km/h (31 
mph) in 3rd gear

100%

Transmission 
range: D

Driving at constant 
speed of 50 km/h (31 
mph) in 4th gear

0%

A/T CONT 
RLY

54

A/T control relay 
output voltage

Ignition switch: ON

Battery positive 
voltage

CKP 
SENSOR

21

Crankshaft position 
sensor

• Engine: Idling 

(after the 
worming up)

• Transmission 

range: P

Accelerator pedal: 
Fully closed

600 

− 900 r/min

Accelerator pedal: 
Depressed

Gradually rises 
from the above 
value

DUAL 
PRESS SW

65

Dual pressure switch

• Engine: Idling

• Transmission 

range: P, N

A/C switch: ON 
(While the A/C 
compressor is in 
operation)

ON

A/C switch: OFF

OFF

ENGINE 
LOAD

57

Engine load 
(volumetric 
efficiency)

• Engine: Idling

• Transmission 

range: N

Accelerator pedal: 
fully closed 

→ 

depressed

Data changes

ISS SENSOR 22

Input shaft speed 
sensor

Gear range: 3rd 
gear

Driving at constant 
speed of 50 km/h (31 
mph)

1,400 

− 1,700 

r/min

L/R SOL 
DUTY

31

Low-reverse 
solenoid valve duty 
%

Transmission 
range: L

Driving at constant 
speed of 10 km/h 
(6.2 mph) in 1st gear

0%

Transmission 
range: 2

Driving at constant 
speed of 30 km/h (19 
mph) in 2nd gear

100%

Transmission 
range: 3

Driving at constant 
speed of 50 km/h (31 
mph) in 3rd gear

100%

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-410

L/R SOL 
DUTY

31

Low-reverse 
solenoid valve duty 
%

Transmission 
range: D

Driving at constant 
speed of 50 km/h (31 
mph) in 4th gear

100%

O/D SOL 
DUTY

34

Overdrive solenoid 
valve duty %

Transmission 
range: L

Driving at constant 
speed of 10 km/h 
(6.2 mph) in 1st gear

100%

Transmission 
range: 2 

Driving at constant 
speed of 30 km/h (19 
mph) in 2nd gear

100%

Transmission 
range: 3 

Driving at constant 
speed of 50 km/h (31 
mph) in 3rd gear

0%

Transmission 
range: D 

Driving at constant 
speed of 50 km/h (31 
mph) in 4th gear

0%

OD OFF 
SIGNAL

66

Overdrive off signal 
(Auto-cruise ECM 
signal)

While auto-cruise 
is engaged

Level road

OFF

Uphill grade

ON

OSS 
SENSOR

23

Output shaft speed 
sensor

Gear range: 3rd 
gear

Driving at constant 
speed of 50 km/h (31 
mph)

1,400 

− 1,700 

r/min

SHIFT POS

63

Shift position

Transmission 
range: L 

Driving at constant 
speed of 10 km/h 
(6.2 mph) in 1st gear

1st

Transmission 
range: 2 

Driving at constant 
speed of 30 km/h (19 
mph) in 2nd gear

2nd

Transmission 
range: 3 

Driving at constant 
speed of 50 km/h (31 
mph) in 3rd gear

3rd

Transmission 
range: D 

Driving at constant 
speed of 50 km/h (31 
mph) in 4th gear

4th

Transmission 
range: R 

Driving at constant 
speed of 5 km/h (3.1 
mph) in reverse gear

REV

Transmission range: P or N 

PN

STOPLIGHT 
SW

26

Stoplight switch

Ignition switch: ON Brake pedal: 

Depressed

ON

Brake pedal: 
Released

OFF

MUT-III 
SCAN TOOL 
DISPLAY

ITEM 
NO.

INSPECTION ITEM INSPECTION 

REQUIREMENT

NORMAL 
CONDITION

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-411

TCC 
SLIPPAGE

52

Torque converter 
clutch amount of 
slippage

• Warmed up

• Transmission 

range: 3

• Driving at speed 

of 50 km/h (31 
mph) in 3rd 
gear

Driving at constant 
speed of 60 km/h (37 
mph)

−10 to 10 r/min

Release accelerator 
pedal (at less than 
50 km/h (31 mph))

The value should 
fluctuate when the 
accelerator is 
released

TCC SOL 
DUTY

36

Torque converter 
clutch solenoid valve 
duty %

• Warmed up

• Transmission 

range: 3

• Driving at speed 

of 50 km/h (31 
mph) in 3rd 
gear

Driving at constant 
speed of 60 km/h (37 
mph)

70 

− 99.6%

Release accelerator 
pedal (at less than 
50 km/h (31 mph))

70 

− 99.6% → 0% 

Decreases 
gradually as the 
vehicle speed 
decreases

TF LOW 
DETECT

75

Transfer low 
detection switch 
<V4A51>

• Ignition switch: 

ON

• Transmission 

range: N

Transfer position: 4L 
<V4A51>

ON

Transfer position: 
Other than above

OFF

TFT 
SENSOR

15

Transmission fluid 
temperature sensor

Warmed up

Drive for 15 minutes 
or more so that the 
transmission fluid 
temperature 
becomes 70 

− 80°C 

(158 

− 176°F)

Gradually rises to 
70 

− 80°C (158 − 

176

°F)

TP SENSOR 11

TP sensor

• Ignition switch: 

ON

• Engine: 

Stopped

• Transmission 

range: P

Accelerator pedal: 
Fully closed

535 

− 735 mV

Accelerator pedal: 
Depressed

Gradually rises 
from the above 
value

Accelerator pedal: 
Fully open

4,500 

− 5,500 mV

MUT-III 
SCAN TOOL 
DISPLAY

ITEM 
NO.

INSPECTION ITEM INSPECTION 

REQUIREMENT

NORMAL 
CONDITION

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-412

TR SWITCH

61

Transmission range 
switch

Ignition switch: ON Transmission range: 

P

P

Transmission range: 
R

R

Transmission range: 
N

N

Transmission range: 
D

D

Transmission range: 
3

3

Transmission range: 
2

2

Transmission range: 
L

L

U/D SOL 
DUTY

32

Underdrive solenoid 
valve duty %

Transmission 
range: L

Driving at constant 
speed of 10 km/h 
(6.2 mph) in 1st gear

0%

Transmission 
range: 2

Driving at constant 
speed of 30 km/h (19 
mph) in 2nd gear

0%

Transmission 
range: 3

Driving at constant 
speed of 50 km/h (31 
mph) in 3rd gear

0%

Transmission 
range: D

Driving at constant 
speed of 50 km/h (31 
mph) in 4th gear

100%

VSS

29

Vehicle speed 
sensor

Transmission 
range: 3

Idling with 1st gear 
(Vehicle stopped)

0 km/h (0 mph)

Driving at constant 
speed of 50 km/h (31 
mph)

50 km/h (31 mph)

MUT-III 
SCAN TOOL 
DISPLAY

ITEM 
NO.

INSPECTION ITEM INSPECTION 

REQUIREMENT

NORMAL 
CONDITION