Mitsubishi Galant 9G. Manual — part 574

ON-VEHICLE SERVICE

TSB Revision

AUTOMATIC TRANSAXLE

23A-374

6. Gently push the transaxle control cable in the direction of the

arrow, until the cable is taut. Tighten the adjusting nut.

Tightening torque: 12

± 2 N⋅m (107 ± 17 in-lb)

7. Check that the selector lever is in the "N" position.
8. Check that each position of the manual control lever

matches each position of the selector lever using scan tool
MB991958 (MUT-III sub assembly).

AUTOMATIC TRANSAXLE CONTROL
COMPONENT CHECK

CRANKSHAFT POSITION SENSOR CHECK

M1231009000355

Refer to GROUP 13A <2.4L Engine>, Diagnosis

− Inspection

Procedure Using an Oscilloscope

P.13A-1106

.

Refer to GROUP 13B <3.8L Engine>, Diagnosis

− Inspection

Procedure Using an Oscilloscope

P.13B-1161

.

TRANSMISSION FLUID TEMPERATURE SENSOR
CHECK

M1231021800133

1. Remove the transmission fluid temperature sensor.
2. Measure the resistance between terminals 1 and 2 of the

transmission fluid temperature sensor connector.

Standard value:

AC305532

12 ± 2 N·m
107 ± 17 in-lb

MANUAL CONTROL LEVER

ADJUSTING NUT

AD

<F4A4B>

AC305881AD

12 ± 2 N·m
107 ± 17 in-lb

ADJUSTING NUT

MANUAL
CONTROL
LEVER

<F4A5A>

TRANSMISSION FLUID
TEMPERATURE

RESISTANCE

0

°C (32°F)

16.7

− 20.5 kΩ

20

°C (68°F)

7.3

− 8.9 kΩ

40

°C (104°F)

3.4

− 4.2 kΩ

60

°C (140°F)

1.9

− 2.2 kΩ

80

°C (176°F)

1.0

− 1.2 kΩ

100

°C (212°F)

0.57

− 0.69 kΩ

AC210186

2

7

1

8

3

9

4

6

10

5

TRANSMISSION FLUID

AC

ON-VEHICLE SERVICE

TSB Revision

AUTOMATIC TRANSAXLE

23A-375

3. If the transmission fluid temperature sensor resistance is

outside the specified range and the "N" range indicator light
is flashing, replace the transmission fluid temperature
sensor.
NOTE: The "N" range indicator light on the combination
meter flashes when the temperature reaches approximately
125

°

C (257

°

F) or greater, and then stops flashing when the

temperature drops below approximately 115

°

C (238

°

F).

TRANSMISSION RANGE SWITCH CHECK

M1231021600117

Refer to

P.23A-372

.

STOPLIGHT SWITCH CHECK

M1231009100192

Refer to GROUP 35A, Brake Pedal

− Brake Pedal Inspection

P.35A-25

.

A/T CONTROL RELAY CHECK

M1231009300248

1. Remove the A/T control relay.

2. Use jumper wires to connect A/T control relay terminal 3 to

the negative battery terminal and terminal 2 to the positive
battery terminal.

3. Check for continuity between A/T control relay terminals 1

and 4 when the jumper wires are connected to and
disconnected from the battery.

4. If there is any problem with the A/T control relay, replace it.

JUMPER WIRE CONTINUITY BETWEEN TERMINALS

NO.1 AND NO.4

Connected

Continuity

Disconnected

No continuity

AC306283

A/T
CONTROL
RELAY

RELAY BOX

AC

BATTERY

AC100115

1 2
3 4

FRONT OF VEHICLE

AJ

ON-VEHICLE SERVICE

TSB Revision

AUTOMATIC TRANSAXLE

23A-376

SOLENOID VALVE CHECK

M1231009400267

1. Use scan tool MB991958 (MUT-III sub assembly) to

measure the transmission fluid temperature. The desired
transmission fluid temperature setting for performing the
solenoid valve check is 20

°C (68°F).

2. Remove the A/T control solenoid valve assembly connector.
3. Measure the resistance between the solenoid valve

terminals.

4. The measured resistance of the solenoid valve when the

transmission fluid temperature is 20

°C (68°F) should match

the specified resistance on the chart below.

Specified resistance:

5. If the solenoid valve resistance is within the specified range,

check the power supply and the ground circuits.

6. If the solenoid valve resistance is not within the specified

range, drain the transmission fluid and remove the valve
body cover.

7. Disconnect the connector of any solenoid valves that are not

within the specified range.

8. Measure the resistance between terminals 1 and 2 of any

solenoid valve that was not within the specified range.

Specified resistance: 2.7

− 3.4 Ω [at 20°C (68°F)]

9. If the resistance is not within the specified range, replace the

solenoid valve.

10.If the resistance is within the specified range, check the

wiring harness between the affected A/T control solenoid
valve assembly and the solenoid valve. If a problem is not
found in the above steps, check the solenoid valve O-rings
and replace them if necessary.

TERMINAL
NO.

NAME

RESISTANCE

7 - 10

Torque converter clutch
solenoid valve

2.7

− 3.4 Ω [at

20

°C (68°F)]

6 - 10

Low-reverse solenoid
valve

4 - 9

Second solenoid valve

3 - 9

Underdrive solenoid
valve

5 - 9

Overdrive solenoid valve

AC306288AB

A/T CONTROL
SOLENOID VALVE
ASSEMBLY

2

7

1

8

3

9

4

6

10

5

AC002219AD

LOW-
REVERSE
SOLENOID
VALVE

OVERDRIVE
SOLENOID
VALVE

TORQUE
CONVERTER
CLUTCH
SOLENOID

SECOND
SOLENOID
VALVE

UNDERDRIVE
SOLENOID
VALVE

AC100378

1
2

AB

ON-VEHICLE SERVICE

TSB Revision

AUTOMATIC TRANSAXLE

23A-377

SELECTOR LEVER OPERATION CHECK

M1231001300426

1. Apply the parking brake, and check that the selector lever

moves smoothly and accurately to each position.

2. Check that the engine starts when the selector lever is at the

"N" or "P" position, and that it does not start when the
selector lever is in any other position.

3. Start the engine, release the parking brake, and check that

the vehicle moves forward when the selector lever is moved
from "N" position to "D," "3," "2" or "L" position or to 1st or
2nd gear in Sports mode, and that the vehicle reverses
when the selector lever is moved to "R" position.

4. Stop the engine.
5. Turn the ignition switch to the "ON" position, and check that

the backup lamp illuminates when the selector lever is
shifted from "P" position to "R" position.
NOTE: The A/T mis-operation prevention mechanism is pro-
vided so that the selector lever cannot be moved from the
"P" position if the ignition switch is at a position other than
the "LOCK" (OFF) position and the brake pedal is not
depressed.

AC305529

THE SELECTOR LEVER MOVES WHEN THE
BRAKE PEDAL IS DEPRESSED AND THE
BUTTON IS PUSHED IN WITH THE IGNITION
KEY IN ANY POSITION OTHER THAN THE
"LOCK" (OFF) POSITION.

THE SELECTOR LEVER MOVES WITHOUT
PUSHING THE BUTTON.

THE SELECTOR LEVER MOVES WHEN THE
BUTTON IS PUSHED.

AB

<VEHICLES WITHOUT
SPORT MODE>

<VEHICLES WITH
SPORT MODE>