Mitsubishi Grandis. Manual - part 865

ON-VEHICLE SERVICE

AUTOMATIC TRANSMISSION (FF)

23A-127

1. Remove the hose shown in the illustration which 

allows the A/T fluid to flow from the A/T fluid 
cooler (built into the radiator) to the transmission.

CAUTION

The engine should be stopped within one minute 
of it being started. If the A/T fluid has all been 
discharged before this, stop the engine at that 
point.
2. Start the engine and discharge the A/T fluid.

Driving conditions: N range, idling

Discharge amount: Approx. 3.5 L 

3. Remove the drain plug at the bottom of the 

transmission case to drain out the remaining A/T 
fluid.

Discharge amount: Approx. 2.0 L

4. Install the drain plug with a gasket in between, 

and tighten it to the specified torque.

Tightening torque: 32 

± 2 N⋅m

CAUTION

Stop pouring in the A/T fluid once 5.5 L has been 
poured in.
5. Pour in new A/T fluid through the oil filler tube.

Amount to add: Approx. 5.5 L

6. Repeat the operation in step 2.
7. Pour in new A/T fluid through the oil filler tube.

Amount to add: Approx. 3.5 L

NOTE: Carry out steps 2 and 7 so that at least 8.0 
L has been discharged from the cooler hose. After 
this, discharge a small quantity of A/T fluid and 
check for contamination. If the A/T fluid is 
contaminated, repeat steps 6 and 7.

8. Connect the hose which was disconnected in step 

1, and then securely re-insert the oil level gauge.

9. Start the engine, and let it run at idle for 1 

− 2 

minutes.

10.Move the selector lever to all positions once, and 

then return it to the N position.

11.Check that the A/T fluid level on the oil level 

gauge is at the COLD mark. if it is not up to this 
mark, add more A/T fluid.

12.Drive the vehicle until the A/T Fluid temperature 

reaches the normal temperature (70 

− 80°C), and 

then re check the A/T fluid level.
NOTE: The COLD mark is for reference only; the 
HOT marks should be used as the standard for 
judgment.
NOTE: A/T fluid temperature using MUT-III.

AC311152AB

Radiator

AC302068AD

Drive shaft

AC311152AB

Radiator

AC303532AC

ON-VEHICLE SERVICE

AUTOMATIC TRANSMISSION (FF)

23A-128

NOTE: 

Check the oil level referring to the characteristics 
chart shown at left if it takes some time until 
reaching the normal operation temperature of A/T 
fluid (70 

−

 80

°

C.) 

13.When A/T fluid is under the specified level, top up 

A/T fluid. When A/T fluid is over the specified 
level, drain the excessive A/T fluid from the drain 
plug to adjust A/T fluid level to the specified level.

14.Securely insert the oil level gauge into the oil filler 

tube.

AUTOMATIC TRANSMISSION FLUID 
COOLER LINE FLUSHING

M1231013000400

CAUTION

If replacing the transmission with a new one, if 
overhauling the existing transmission, or if the 
A/T fluid has deteriorated or is contaminated, the 
A/T fluid cooler line must always be flushed out.

1. Remove the hose shown in the illustration which 

allows the A/T fluid to flow from the A/T fluid 
cooler (built into the radiator) to the transmission.

CAUTION

The engine should be stopped within one minute 
of it being started. If the A/T fluid has all been 
discharged before this, stop the engine at that 
point.
2. Start the engine and discharge the A/T fluid.

Driving conditions: N range, idling

Discharge amount: Approx. 3.5 L 

CAUTION

Stop pouring in the A/T fluid once 3.5 L has been 
poured in.
3. Pour in new A/T fluid through the oil filler tube.

Amount to add: Approx. 3.5 L 

4. Repeat the operation in step 2 and 3.

NOTE: Carry out steps 2 and 3 so that at least 8.0 
L has been discharged from the cooler hose. After 
this, discharge a small quantity of A/T fluid and 
check for contamination. If the A/T fluid is 
contaminated, repeat steps 2 and 3.

5. Carry out the procedure in "Automatic 

Transmission Fluid (ATF) Replacement" from step 
2 onwards.

INHIBITOR SWITCH CONTINUITY CHECK

M1231001400627

NOTE: The inhibitor switch has 7 positions, but only 
four positions [P, R, N and D]are used.

INHIBITOR SWITCH AND CONTROL 
CABLE ADJUSTMENT

M1231010300349

1. Move the selector lever to the N position.

HO

T

AC312577

Fluid level [mm]

Fluid temperature [    ]

10

0

-10

-20

-30

40

60

80

Fluid level

AB

AC311152AB

Radiator

Item

Terminal No.

Resistance

P

3 

− 8, 9 − 10

Less than 2 

Ω

R

7 

− 8

N

4 

− 8, 9 − 10

D

1 

− 8

AC303714AG

Battery bracket

Inhibitor switch

AC304078

P

R

N

D

AD

ON-VEHICLE SERVICE

AUTOMATIC TRANSMISSION (FF)

23A-129

2. Loosen the adjusting nut, and set the manual 

control lever upper and lower to the free condition.

3. Move the manual control lever lower to the neutral 

position.

4. Loosen the inhibitor switch body mounting bolts, 

and then turn the inhibitor switch body to align the 
second hole from the end of the manual control 
lever with the hole in the inhibitor switch body 
flange (section A 

− A).

NOTE: The inhibitor switch body can be aligned 
by hand, because the manual control lever end is 
as wide as the switch body flange. Alternatively, 
the inhibitor switch can also be aligned by 
inserting a 5-mm bar in the second hole from the 
end of the manual control lever and the hole in the 
inhibitor switch body flange.

CAUTION

Be careful not let the inhibitor switch body slip 
out of place.
5. Tighten the inhibitor switch body mounting bolt to 

the specified torque.

Tightening torque: 11 

± 1 N⋅m

6. Tighten the transmission control cable locking nut 

to the specified torque.

Tightening torque: 12 

± 2 N⋅m

7. Check that the selector lever is at the N position.
8. Check that the transmission shifts to the correct 

range corresponding to the position of the selector 
lever, and that it functions correctly in that range.

A/T CONTROL COMPONENT LOCATION

M1231008600428

AC304074AD

Mounting bolt

Manual
control lever

11 ± 1 N·m

A

A

Section A - A

Hole in  flange

Inhibitor switch 
body

Manual
control lever

Second hole from the end

AC303714AE

Manual control lever

Locking nut

Transmission
control cable

Battery bracket

Name

Symbol

Name

symbol

A/C control solenoid valve assembly

E

Inhibitor switch

H

A/T control relay

B

Input shaft speed sensor

E

A/T fluid temperature sensor

E

Output shaft speed sensor

B

Crank angle sensor

F

Shift switch assembly

K

Diagnosis connector

G

Stop lamp switch

H

Engine-A/T-ECU

C

ON-VEHICLE SERVICE

AUTOMATIC TRANSMISSION (FF)

23A-130

A/T CONTROL COMPONENT CHECK

INHIBITOR SWITCH CHECK

M1231001400638

Refer to 

P.23A-128

.

CRANK ANGLE SENSOR CHECK

M1231009000430

Refer to GROUP 13 

− Troubleshooting, Inspection 

Procedure using an Oscilloscope 

P.13A-378

.

STOP LAMP SWITCH CHECK

M1231010100130

Refer to GROUP 35A 

− Brake pedal, Inspection 

P.35A-13

.

A/T CONTROL RELAY CHECK

M1231009300301

1. Removal the A/T control relay.

AC3111987

AB

D

E

A

B

F

G

H

I

<LHD>

<RHD>

C

J

G

H

I

J

AC311979AB

A/T control relay