Subaru 2009 IMPREZA, Service Manual

Page: 1891 / 3619

4AT-35
Transfer Clutch Pressure Test
AUTOMATIC TRANSMISSION
8. Transfer Clutch Pressure
Test
A: INSPECTION
Check the transfer clutch pressure in accordance
with the following chart in the same manner as line
pressure. <Ref. to 4AT-34, 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.
• 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.
(A) Test plug
AT-04598
( A )
Range position ON duty ratio (%)
Acceleration opening angle
(%)
Standard transfer clutch pressure
kPa (kg/cm
2
, psi)
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, 72 — 101)
—
5 Fully closed (0) — 0 (0, 0)
N or P 5 Fully closed (0) 0 —