Transfer Clutch Pressure Test: Inspection

Check the transfer clutch pressure in accordance with the following chart in the same manner as line pressure. < Ref. to LINE PRESSURE TEST . >

ST 498897700 OIL PRESSURE ADAPTER SET

ST 498575400 OIL PRESSURE GAUGE ASSY

NOTE:

Before setting to FWD mode, install the spare fuse on the FWD mode switch. (MP-T model only)

Fig 1: Identifying Test Plug
Courtesy of SUBARU OF AMERICA, INC.
If no oil pressure is produced or if it does not change in AWD mode, there may be a problem in the transfer duty solenoid or control valve body.
If oil pressure is produced in FWD mode, there is the same problem as the AWD mode. (MP-T model only)

STANDARD TRANSFER CLUTCH PRESSURE CHART

Range position	ON duty ratio (%)	Acceleration opening angle (%)	Standard transfer clutch pressure kPa (kg/cm² , psi)
Range position	ON duty ratio (%)	Acceleration opening angle (%)	AWD mode	FWD mode
Manual mode (2nd)	95	Fully opened (100)	1,000 - 1,200 (10.2 - 12.2, 145 - 174)	-
	60	Adjust ON Duty ratio to 60%.	500 - 700 (5.1 - 7.1, 73 - 102)	-
	-	Fully closed (0)	-	0 (0, 0)
N or P	5	Fully closed (0)	0	-