Subaru LEGACY 2006 Manual page 3534

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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 chassis
ground and control valve body connector.
Connector & terminal
(T15) No. 1 — Chassis ground:
(T15) No. 16 — Chassis ground:
6 CHECK POOR CONTACT.
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
Is the resistance more than 1
MΩ?
Is there poor contact in ATF
temperature sensor 1 circuit?
5AT(diag)-41
Yes No
Replace the con- Repair the short
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).>