Mitsubishi 380. Manual - part 433

 

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Mitsubishi 380. Manual - part 433

 

 

AUTOMATIC TRANSMISSION DIAGNOSIS

AUTOMATIC TRANSMISSION

23A-272

L/R SOL 
DUTY

12

Low-reverse 
solenoid valve duty 
%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

100%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

100%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

100%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

0%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

Driving at constant 
speed of 50 km/h (31 
mph) in 5th gear

0%

O/D SOL 
DUTY

15

Overdrive solenoid 
valve duty %

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

100%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

100%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

0%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

0%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

Driving at constant 
speed of 50 km/h (31 
mph) in 5th gear

0%

OSS 
SENSOR

6

Output shaft speed 
sensor (r/min)

Gear range: 3rd gear Driving at constant 

speed of 50 km/h (31 
mph)

1,100 

− 1,400 

r/min

MUT-III 
DIAGNOSTI
C TOOL 
DISPLAY

ITEM 
NO.

INSPECTION ITEM

INSPECTION 
REQUIREMENT

NORMAL 
CONDITION

AUTOMATIC TRANSMISSION DIAGNOSIS

AUTOMATIC TRANSMISSION

23A-273

SELECT SW

27

Select switch 
<Vehicles with sport 
mode>

Ignition switch: ON

Transmission range: D OFF

Selector lever 
operation: Select sport 
mode

ON

Selector lever 
operation: Upshift and 
hold the selector lever

ON

Selector lever 
operation: Downshift 
and hold the selector 
lever

ON

SHIFT POS

11

Shift position

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

Driving at constant 
speed of 10 km/h in 
1st gear

1st

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

Driving at constant 
speed of 30 km/h in 
2nd gear

2nd

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

Driving at constant 
speed of 50 km/h in 
3rd gear

3rd

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

Driving at constant 
speed of 70 km/h in 
4th gear

4th

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

Driving at constant 
speed of 70 km/h in 
5th gear

5th

Transmission range: 
R

Driving at constant 
speed of 5 km/h in 
reverse gear

REV

Transmission range: P, N

NP

MUT-III 
DIAGNOSTI
C TOOL 
DISPLAY

ITEM 
NO.

INSPECTION ITEM

INSPECTION 
REQUIREMENT

NORMAL 
CONDITION

AUTOMATIC TRANSMISSION DIAGNOSIS

AUTOMATIC TRANSMISSION

23A-274

SHIFT SW 
DOWN

29

Shift switch (Down) 
<Vehicles with sport 
mode>

Ignition switch: ON

Transmission range: D OFF

Selector lever 
operation: Select sport 
mode

OFF

Selector lever 
operation: Upshift and 
hold the selector lever

OFF

Selector lever 
operation: Downshift 
and hold the selector 
lever

ON

SHIFT SW 
UP

28

Shift switch (Up) 
<Vehicles with sport 
mode>

Ignition switch: ON

Transmission range: D OFF

Selector lever 
operation: Select sport 
mode

OFF

Selector lever 
operation: Upshift and 
hold the selector lever

ON

Selector lever 
operation: Downshift 
and hold the selector 
lever

OFF

STOPLIGHT 
SW

19

Stoplight switch

Ignition switch: ON 
Engine: stopped

Brake pedal: 
Depressed

ON

Brake pedal: Released OFF

DCC 
SLIPPAGE

10

Damper clutch 
amount of slippage

• Warmed up

• Transmission 

range: Sport 
mode <Vehicles 
with sport mode>

Driving at constant 
speed of 50 km/h in 
3rd gear

Approx. 100  to 
300 r/min

Driving at constant 
speed of 70 km/h in 
4th gear

Approx. 0  to 
10 r/min

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

The value 
should 
fluctuate when 
the accelerator 
is released.

DCC SOL 
DUTY

17

Damper control 
clutch solenoid valve 
duty %

• Warmed up

• Transmission 

range:            
Sport mode 
<Vehicles with 
sport mode>

Driving at constant 
speed of 50 km/h in 
3rd gear

Approx. 70 

− 

90%

Accelerate to 50 km/h 
in 3 position, then 
release accelerator 
pedal

70 

− 90% → 

0% Decreases 
gradually as 
the vehicle 
speed 
decreases

MUT-III 
DIAGNOSTI
C TOOL 
DISPLAY

ITEM 
NO.

INSPECTION ITEM

INSPECTION 
REQUIREMENT

NORMAL 
CONDITION

AUTOMATIC TRANSMISSION DIAGNOSIS

AUTOMATIC TRANSMISSION

23A-275

TFT 
SENSOR

7

Transmission fluid 
temperature sensor

Warmed up

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

− 90°C

Gradually rises 
to 70 

− 90°C

AP SENSOR

2

AP sensor (mV)

• Ignition switch: 

ON

• Engine: Stopped

• Transmission 

range: P

Accelerator pedal: 
Release

900 

− 1100 mV

Accelerator pedal: 
Depressed

Gradually rises 
from the above 
value

Accelerator pedal: 
Fully depressed

4,000 mV or 
more

INHIBITOR 
SWITCH

34

Transmission 
inhibitor switch

Ignition switch: ON

Transmission range: P P

Transmission range: R R

Transmission range: N N

Transmission range: D D

U/D SOL 
DUTY

13

Underdrive solenoid 
valve duty %

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

0%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

0%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

0%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

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

0%

Transmission range:  
Sport mode 
<Vehicles with sport 
mode>

Driving at constant 
speed of 50 km/h (31 
mph) in 5th gear

100%

MUT-III 
DIAGNOSTI
C TOOL 
DISPLAY

ITEM 
NO.

INSPECTION ITEM

INSPECTION 
REQUIREMENT

NORMAL 
CONDITION

 

 

 

 

 

 

 

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