Subaru Legacy (2005 year). Manual - part 521

4AT-65

AUTOMATIC TRANSMISSION

ATF Filter

20.ATF Filter

A: REMOVAL

1) Lift up the vehicle.
2) Using the ST, remove the ATF filter.
ST

498545400

OIL FILTER WRENCH

B: INSTALLATION

1) Apply a thin coat of ATF to the oil seal part of
new ATF filter.
2) Install the ATF filter. Turn it by hand, being care-
ful not to damage oil seal.
3) Tighten the ATF filter using ST.
Calculate the ATF filter tightening torque using fol-
lowing formula.
T2 = L2/(L1 + L2) 

× T1

T1: 14 N

⋅m (1.4 kgf-m, 10.1 ft-lb)

[Required torque setting]
T2: Tightening torque
L1: ST length 78 mm (3.07 in)
L2: Torque wrench length
Example:

NOTE:
Install the ST straightly to converter case.
ST

498545400

OIL FILTER WRENCH

4) Fill the ATF.
5) Check the level of ATF. <Ref. to 4AT-31, Auto-
matic Transmission Fluid.>

C: INSPECTION

Check for rust, hole, ATF leaks, and other damage.

(A) ATF filter

Torque wrench length

mm (in)

Tightening torque

N

⋅m (kgf-m, ft-lb)

100 (3.94)

7.7 (0.79, 5.7)

150 (5.91)

9.0 (0.92, 6.7)

200 (7.87)

10 (1.0, 7.2)

AT-00091

(A)

ST

4AT-66

AUTOMATIC TRANSMISSION

Transmission Control Module (TCM)

21.Transmission Control Mod-

ule (TCM)

A: REMOVAL

1) Disconnect the ground cable from battery.
2) Remove the lower cover and remove the con-
nector.
3) Remove the body integrated module. <Ref. to
SL-44, REMOVAL, Body Integrated Module.>
4) Disconnect the connector from TCM.
• LHD model

• RHD model

5) Remove the TCM.

B: INSTALLATION

1) Install the TCM.
• LHD model

Tightening torque:

7.5 N

⋅

m (0.76 kgf-m, 5.5 ft-lb)

• RHD model

Tightening torque:

18 N

⋅

m (1.8 kgf-m, 13.3 ft-lb)

2) Connect the connector to TCM.
3) Install in the reverse order of removal.
4) Execute the learning control promotion. <Ref. to
4AT(diag)-18, FACILITATION OF LEARNING
CONTROL, OPERATION, Subaru Select Moni-
tor.>

(A) Transmission control module (TCM)

(B) Brake pedal

(A) Transmission control module (TCM)

(B) Steering column

AT-02170

(A)

(B)

AT-01342

(A)

(B)

(A) Transmission control module (TCM)

(B) Brake pedal

(A) Transmission control module (TCM)

(B) Steering column

AT-02170

(A)

(B)

AT-01342

(A)

(B)

4AT-67

AUTOMATIC TRANSMISSION

Lateral G Sensor

22.Lateral G Sensor

A: REMOVAL

1) Remove the console box. <Ref. to EI-53, RE-
MOVAL, Console Box.>
2) Disconnect the connector from lateral G sensor.
• LHD model

• RHD model

3) Remove the lateral G sensor.

B: INSTALLATION

Install in the reverse order of removal.
• LHD model

Tightening torque:

18 N

⋅

m (1.8 kgf-m, 13.3 ft-lb)

• RHD model

Tightening torque:

T1: 7.5 N

⋅

m (0.76 kgf-m, 5.5 ft-lb)

T2: 18 N

⋅

m (1.8 kgf-m, 13.3 ft-lb)

AT-02181

AT-01343

AT-02181

AT-01719

T2

T1

4AT-68

AUTOMATIC TRANSMISSION

ATF Cooler Pipe and Hose

23.ATF Cooler Pipe and Hose

A: REMOVAL

1. MODEL WITHOUT ATF COOLER WITH 
WARMER FUNCTION

1) Set the vehicle on a lift.
2) Remove the battery.
3) Lift up the vehicle.
4) Remove the under cover.
5) Remove the radiator under cover.

6) Disconnect the ATF cooler hose from radiator.

NOTE:
• Do not use a screwdriver or other pointed tools.
• When hard to remove the hose, wrap the hose
with cloth to prevent from damaging, and then turn
with pliers and pull out with hand straightly.

7) Disconnect the ATF cooler hoses from pipes.

NOTE:
• Do not use a screwdriver or other pointed tools.
• When hard to remove the hose, wrap the hose
with cloth to prevent from damaging, and then turn
with pliers and pull out with hand straightly.

8) Disconnect the ATF cooler pipe from frame.

AT-01344

AT-01345

AT-01333

AT-01347