Subaru Legacy 2005 Service Manual page 2243

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
7 CHECK LOW CLUTCH DUTY SOLENOID (IN
TRANSMISSION).
1) Remove the transmission connector from
bracket.
2) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
3) Remove the oil pan, and disconnect the
connector from control valve body.
4) Measure the resistance between low clutch
duty solenoid connector and transmission
ground.
Connector & terminal
(AT3) No. 2 — Transmission ground:
8 CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND LOW CLUTCH DUTY
SOLENOID.
Measure the resistance of harness between
low clutch duty solenoid and transmission con-
nector.
Connector & terminal
(T4) No. 4 — (AT3) No. 2:
9 CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND LOW CLUTCH DUTY
SOLENOID.
Measure the resistance of harness between
transmission connector and transmission
ground.
Connector & terminal
(T4) No. 4 — Transmission ground:
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
Is the resistance 2.0 — 6.0 Ω? Go to step 8.
Is the resistance less than 1
Ω?
Is the resistance more than 1
MΩ?
4AT(diag)-71
Yes
Replace the con-
trol valve body.
<Ref. to 4AT-62,
Control Valve
Body.>
Go to step 9. Repair the open
circuit of harness
between low clutch
duty solenoid and
transmission con-
nector.
Even if the SPORT Repair the short
indicator light is circuit of harness
blinking, the cir- between low clutch
cuit has returned duty solenoid and
to normal condi- transmission con-
tion at this time. A nector.
temporary poor
contact of connec-
tor or harness may
be the cause.
Repair the har-
ness or connector
in low clutch duty
solenoid and
transmission.
No