Outback Model

Lift up the vehicle.
Remove the center exhaust cover.
Using the ST, remove the transfer clutch pressure test plug.
ST 18270AA040 SOCKET

Fig 1: Removing Transfer Clutch Pressure Test Plug
Courtesy of SUBARU OF AMERICA, INC.
Set the ST1, ST2, ST3 and ST4 to the transmission.
NOTE:
- Use ST1 ADAPTER HOSE B with genuine union screw (Part No. 801914010) and gasket (Part No. 803914060) attached.
- Use ST3 PRESSURE GAUGE ADAPTER with genuine O-ring (Part No. 806911080) attached.
ST1 34099AC020 ADAPTER HOSE B

ST2 34099AC010 ADAPTER HOSE A

ST3 18681AA000 PRESSURE GAUGE ADAPTER

ST4 498575400 OIL PRESSURE GAUGE ASSY

Fig 2: Installing ST1 Adapter Hose B With Genuine Union Screw
Courtesy of SUBARU OF AMERICA, INC.

Fig 3: Installing Oil Pressure Gauge Assembly (ST4 498575400)
Courtesy of SUBARU OF AMERICA, INC.
Connect the Subaru Select Monitor to the data link connector and read the current data.

Check the transfer clutch pressure as in secondary pressure (line pressure) test. < Ref. to SECONDARY PRESSURE (LINE PRESSURE) TEST . >

NOTE:

Use Subaru Select Monitor for switching to FWD mode. < Ref. to AWD ON/OFF SWITCHING MODE . >
If no oil pressure is produced, if it does not change in AWD mode or if oil pressure is produced in FWD mode, there may be a problem in the control valve body.

Range position	ON Duty ratio (%)	Accelerator pedal opening angle (%)	Standard transfer clutch pressure kPa (kgf/cm² , psi)
Range position	ON Duty ratio (%)	Accelerator pedal opening angle (%)	AWD mode	FWD mode
D	95 - 100	Fully opened (100)	1, 000 - 1, 200 (10.2 - 12.2, 145 - 174)	-
	60	Adjust ON Duty ratio to 60%.	400 - 700 (4.1 - 7.1, 58 - 102)	-
	0	Fully closed (0)	-	0 (0, 0)
N or P	0	Fully closed (0)	0	-

Lift up the vehicle.
Remove the ST.
Install the test plug using ST1 and ST2.
NOTE:
- Use new O-rings.
- Apply CVTF to the O-rings.
- Tighten the test plug while directly aligning ST2 and torque wrench.
ST1 18270AA040 SOCKET

ST2 73099SG000 SPECIAL TOOL CONDENSER

Using the following formula, calculate the tightening torque for a torque wrench.

T2 = L2/(L1 + L2) X T1

T1: 22 N.m (2.2 kgf-m, 16.2 ft-lb)

L1: ST2 length 0.1 m (3.94 in) (a)

L2: Torque wrench length (b) m (in)

[Required torque setting]

T2: Tightening torque: N.m (kgf-m, ft-lb)

Fig 4: Identifying Torque Wrench Length
Courtesy of SUBARU OF AMERICA, INC.

Fig 5: Tightening Test Plug
Courtesy of SUBARU OF AMERICA, INC.
Install the center exhaust cover.
Tightening torque:

18 N.m (1.8 kgf-m, 13.3 ft-lb)
Lower the vehicle.