Subaru Legacy 2002 Service Manual page 1866

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
No.
13 CHECK TRANSFER DUTY SOLENOID (IN
TRANSMISSION).
1) Lift-up the vehicle and place safety stand.
NOTE:
On AWD models, raise all wheels off ground.
2) Drain automatic transmission fluid.
CAUTION:
Do not drain the automatic transmission
fluid until it cools down.
3) Remove extension case, and disconnect
connector from transfer duty solenoid.
4) Measure resistance between transfer duty
solenoid connector and transmission ground.
Connector & terminal
(AT4) No. 1 — Transmission ground:
14 CHECK HARNESS CONNECTOR
BETWEEN TRANSFER DUTY SOLENOID
AND TRANSMISSION.
Measure resistance of harness between
transfer duty solenoid and transmission con-
nector.
Connector & terminal
(T4) No. 6 — (AT4) No. 1:
15 CHECK HARNESS CONNECTOR
BETWEEN TRANSFER DUTY SOLENOID
AND TRANSMISSION.
Measure resistance of harness between
transmission connector and transmission
ground.
Connector & terminal
(T4) No. 6 — Transmission ground:
Step
Is the resistance between
10 and 17 Ω?
Is the resistance less than
1 Ω?
Is the resistance more than
1 MΩ?
AT-97
Automatic Transmission (Diagnostics)
Check Yes
Go to step 14.
Go to step 15.
Even if "POWER"
indicator lights up,
the circuit has
returned to a nor-
mal condition at
this time. A tem-
porary poor con-
tact of the con-
nector or harness
may be the
cause. Repair
harness or con-
tact in the transfer
duty solenoid and
transmission con-
nector.
No
Replace transfer
duty solenoid.
Repair open cir-
cuit in harness
between transfer
duty solenoid and
transmission con-
nector.
Repair short cir-
cuit in harness
between transfer
duty solenoid and
transmission con-
nector.