Subaru Legacy 2005 Service Manual page 2266

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
7 CHECK HARNESS CONNECTOR BETWEEN
ECM AND ACCELERATOR PEDAL POSI-
TION SENSOR.
1) Remove the connector from ECM.
2) Measure the resistance of harness
between accelerator pedal position sensor
connector and chassis ground.
Connector & terminal
(B315) No. 6 — Chassis ground:
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 data
link connector.
3) Turn the ignition switch to ON (engine
OFF).
4) Turn the Subaru Select Monitor power
switch to ON.
5) Fully close the throttle.
6) Read the data of accelerator pedal position
sensor using Subaru Select Monitor.
• Accelerator pedal position sensor input sig-
nal is indicated.
9 CHECK POOR CONTACT.
Check
Is the resistance more than 1
MΩ?
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)-94
Yes
Go to step 8. Repair the short
circuit of harness
between ECM and
accelerator pedal
position sensor.
Go to step 9.
indicator light is
blinking, the cir-
cuit has returned
to normal condi-
tion at this time. A
temporary poor
contact of connec-
tor or harness may
be the cause.
Repair the har-
ness or connector
in accelerator
pedal position sen-
sor circuit.
Repair the poor Replace the TCM.
contact. <Ref. to 4AT-66,
Transmission Con-
trol Module
(TCM).>
No