Subaru LEGACY 2006 Manual page 3467

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
8 CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect the connectors to TCM, accelera-
tor pedal position sensor, and ECM.
2) Connect the Subaru Select Monitor to the
data link connector.
3) Turn the ignition switch to ON (engine
OFF).
4) Turn the Subaru Select Monitor switch to
ON.
5) Fully close the throttle.
6) Read the data of "Throttle Sensor Voltage"
using Subaru Select Monitor.
Accelerator pedal position sensor input signal
is indicated.
9 CHECK POOR CONTACT.
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
Is the voltage more than 0.2 V? Even if the SPORT
Is there poor contact in accel-
erator pedal position sensor
circuit?
4AT(diag)-81
Yes No
Go to step 9.
indicator light is
blinking, the cir-
cuit is in normal
condition at this
time. A temporary
poor contact of
connector or har-
ness may be the
cause. Repair the
harness or con-
nector in accelera-
tor pedal position
sensor circuit.
Repair the poor Replace the TCM.
contact. <Ref. to 4AT-62,
Transmission Con-
trol Module
(TCM).>