Subaru LEGACY 2006 Manual page 3531

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
5 CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmis-
sion.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
connector from control valve body connector.
7) Measure the resistance between transmis-
sion connector and control valve body connec-
tor.
Connector & terminal
(T4) No. 12 — (T5) No. 1:
(T4) No. 5 — (T5) No. 16:
6 CHECK POOR CONTACT.
Check
Is the resistance less than 1
Ω?
Is there poor contact in ATF
temperature sensor 1 circuit?
5AT(diag)-38
Yes No
Replace the con- Repair the open
trol valve body. circuit of harness
<Ref. to 5AT-53, between transmis-
Control Valve sion connector
Body.> and control valve
body connector.
Repair the poor Replace the TCM.
contact. <Ref. to 5AT-56,
Transmission Con-
trol Module
(TCM).>