Subaru LEGACY 2006 Manual page 3537

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
7 CHECK HARNESS ASSEMBLY.
Measure the resistance between transmission
connector and chassis ground.
Connector & terminal
(T4) No. 7 — Chassis ground:
(T3) No. 7 — Chassis ground:
8 CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all connectors.
2) Lift-up the vehicle and support with rigid
racks.
NOTE:
Raise all wheels off floor.
3) Start the engine, and set the vehicle in 4th
speed driving condition of manual mode.
NOTE:
Turbine speed sensor 1 signal can be mea-
sured only on 4th speed.
4) Read the current data of turbine speed sen-
sor 1 using the Subaru Select Monitor. <Ref. to
5AT(diag)-16, READ CURRENT DATA, OPER-
ATION, Subaru Select Monitor.>
NOTE:
The speed difference between front and rear
wheels may light the ABS warning light, but this
does not indicate a malfunction. When AT con-
trol diagnosis is finished, perform the VDC
memory clearance procedure of on-board diag-
nostics system. <Ref. to VDC(diag)-26, Clear
Memory Mode.>
Check
Is the resistance more than 1
MΩ?
Does the value of the turbine
speed sensor 1 change
depending on the acceleration,
deceleration and shifting range
of the vehicle?
5AT(diag)-44
Yes No
Go to step 8. Repair the short
circuit of harness
between TCM and
transmission con-
nector.
Even if the SPORT Replace the tur-
indicator light bine speed sensor
blinks, the system 1. <Ref. to 5AT-52,
is in normal condi- Turbine Speed
tion. A temporary Sensor 1.>
poor contact of
connector or har-
ness may be the
cause. Repair the
poor contact of
harness between
ATF temperature
sensor and trans-
mission connector.