Mitsubishi Montero Sport (2004+). Manual - part 611

 

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Mitsubishi Montero Sport (2004+). Manual - part 611

 

 

GENERAL DESCRIPTION

TSB Revision

AUTOMATIC TRANSMISSION

23A-9

ADAPTIVE SHIFT CONTROL

1. The computer learns the driving habits and pref-

erences of each individual driver by processing 
driving data on engine output, tire load, foot brake 
operation, etc. It then uses this data to adjust shift 
timing to best suit the driver's style.

2. If the computer determines from the driving pat-

terns that the driver is one who enjoys a relaxed, 
unhurried style, it adjusts timing to execute 
up-shifts at a lower engine speed to provide a 
smooth, quiet ride. On the other hand, if the com-
puter determines the driver to prefer a sporty ride, 
it adjusts timing to shift up at a higher engine 
speed to provide more powerful response.

3. If the computer determines that the driver tends 

to apply the brakes often on a descending road-
way, it adjusts timing to down shift sooner so that 
engine braking is more effectively applied. Con-
versely, if the computer determines that the driver 
does not brake much while driving downhill, it 
delays downshifting to minimize the effect of 
engine braking.

.

AC000844

DRIVER WHO PREFERS
RELAXING RIDE

DRIVER WHO PREFERS
SPORTIER RIDE

50 (31)

4TH

3RD

100 (62)

VEHICLE SPEED [km/h (mph)]

ADAPTIVE SHIFT CONTROL DURING ACCELERATION

AB

4TH

3RD

AC000845

DRIVER WHO PRESSES
BRAKE PEDAL OFTEN

AVERAGE DRIVER

4TH

3RD

ADAPTIVE SHIFT CONTROL ON DOWNGRADES

AB

4TH

3RD

4TH

4TH

4TH

4TH

3RD

2ND

DRIVER WHO RARELY
PRESSES THE BRAKE

CONVENTIONAL A/T (NO DOWN SHIFT)

NEW A/T WITH
INVECS-II

GENERAL DESCRIPTION

TSB Revision

AUTOMATIC TRANSMISSION

23A-10

SYSTEM CONSTRUCTION DIAGRAM

Ignition switch

Input shaft speed sensor

Output shaft speed sensor

Crankshaft position sensor

Throttle position sensor 

A/T fruid temperature sensor

Park/Neutral position switch

Vehicle speed sensor

Dual pressure switch

Stoplight switch

Scan tool (MUT-II)

Serial communication

A/T control relay

Torque converter clutch solenoid valve

Low-reverse solenoid valve

Second solenoid valve

Underdrive solenoid valve

Overdrive solenoid valve

SENSE

DECIDE

ACT

AC101192

Transfer low detection switch <V4A51>

Cruise cntrol unit (OD OFF Signal)

A/T fluid temperature warning light

Powertrain control module (PCM)

Fail-safe operation

Diagnosis trouble code output

AC

Transmission range switch

Transmission fluid temperature warning
(''A/T TEMP'' indicator light illuminating)
<V4A51>

Scan tool (MUT-III)

Transmission fluid temperature sensor

GENERAL DESCRIPTION

TSB Revision

AUTOMATIC TRANSMISSION

23A-11

SHIFT PATTERN CONTROL

.

NOTE: Within 2 -to- 3 and 3 -to- 4 movement ranges, the PCM adjusts shift points according to the driving 
conditions by memorizing the accelerator pedal stroke and braking timing.

.

DOWNSHIFT PATTERN

AC103566

100

50

0

0 (0)

50 (31)

100 (62)

150 (93)

VEHICLE SPEED [km/h (mph)]

1,000

2,000

3,000

4,000

5,000

6,000

7,000

OUTPUT SHAFT SPEED (r/min)

AB

THICK LINE: STANDARD SHIFT PATTERN 

→ 3

MOVEMENT
RANGE

3

→4

MOVEMENT
RANGE

1

2

2

3

3

4

THROTTLE 
OPENING (%)

THROTTLE 
OPENING
VOLTAGE (V) 5.0

4.0

3.0

2.0

1.0

0.635

0 (0)

50 (31)

100 (62)

150 (93)

200 (124)

<R4A51>

<V4A51>

AC103567

100

50

0

VEHICLE SPEED [km/h (mph)]

1,000

2,000

3,000

4,000

5,000

6,000

7,000

OUTPUT SHAFT SPEED (r/min)

AB

1

2

2

3

THROTTLE 
OPENING (%)

THROTTLE 
OPENING
VOLTAGE (V) 5.0

4.0

3.0

2.0

1.0

0.635

3

4

3

4 (L, 2, 3)

2

3 (L, 2)

1

2 (L)

0 (0)

50 (31)

100 (62)

150 (93)

0 (0)

50 (31)

100 (62)

150 (93)

200 (124)

<R4A51>

<V4A51>

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-12

AUTOMATIC TRANSMISSION DIAGNOSIS

DIAGNOSTIC TROUBLESHOOTING FLOW

M1231104000142

INTRODUCTION TO A/T DIAGNOSIS

M1231108400120

The automatic transmission can exhibit any of the 
following symptoms: noise or vibration is generated, 
transmission fluid leaks, the vehicle does not move 
forward or backward. The causes of these symptoms 
could come from: Incorrect mounting, the transmis-
sion fluid may be low, or a component of the trans-
mission may be faulty. 

The following items are suspected as causes for the 
INVECS-II troubles: malfunction of the PCM, the 
sensors, the switches, the harness or connectors.

 

Gather information from customer.

Check the  transmission fluid.

Verify complaint.

Replace or replenish the
transmission fluid.

Communication with the scan tool
(MUT-II) not possible in Symptom 
Chart.

Read the diagnostic trouble code.

Erase the diagnostic trouble code.

Check symptom.

Perform the repair.

Road test

Recheck diagnostic trouble codes 
which were read before road test.

To DIAGNOSTIC TROUBLE CODE 
CHART

To SYMPTOM CHART

Search for cause.

Repair

Confirmation test (road test)

INTERMITTENT MALFUNCTIONS
(Refer to GROUP 00, How to Use
Troubleshooting/Inspection 
Service Points.)

Completed

NG

OK

Communication with the scan
tool (MUT-II) not possible

Diagnostic trouble code
displayed.

No diagnostic trouble code
displayed.

Abnormality exists (no diagnostic 
trouble code)

Abnormality exists 
(diagnostic trouble 
code present)

No abnormality

No diagnostic trouble code
displayed.

Diagnostic trouble code
displayed.

Found

Not found

OK

OK

NG

AC205501

NG

AC

Communication with the scan tool
MB991958 (MUT-III sub assembly) 
not possible in Symptom Chart.

Communication with the scan
tool MB991958 (MUT-III sub assembly) 
not possible

 

 

 

 

 

 

 

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