Subaru IMPREZA GD 2007 Series Manual page 2707

asieps_tobira_IM_US.book 68 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
6 CHECK LOW CLUTCH DUTY SOLENOID (IN
TRANSMISSION).
1) Remove the transmission connector from
bracket.
2) Drain the automatic transmission fluid.
CAUTION:
Do not drain ATF until it cools down.
3) Remove the oil pan, and disconnect the
connector from the low clutch duty solenoid.
4) Measure the resistance between low clutch
duty solenoid connector and transmission
ground.
Connector & terminal
(AT12) No. 2 — Transmission ground:
7 CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND LOW CLUTCH DUTY
SOLENOID.
Measure the resistance of harness between low
clutch duty solenoid and transmission connec-
tor.
Connector & terminal
(T4) No. 4 — (AT12) No. 2:
8 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:
Check
Is the resistance 2.0 — 6.0 Ω? Go to step 7.
Is resistance less than 1 Ω?
Is the resistance 1 MΩ or
more?
4AT(D)(diag)-68
Yes No
Replace the con-
trol valve body.
<Ref. to 4AT-59,
Control Valve
Body.>
Go to step 8.
Repair the open
circuit of harness
between low clutch
duty solenoid and
transmission con-
nector.
Even if the ATF Repair the short
temperature warn- circuit of harness
ing light blinks, the between low clutch
circuit is in normal duty solenoid and
condition at this transmission con-
time. A temporary nector.
poor contact of
connector or har-
ness may be the
cause. Repair the
harness or con-
nector of the low
clutch duty sole-
noid and transmis-
sion.