Subaru IMPREZA GD 2007 Series Manual page 2679

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
57 CHECK HARNESS CONNECTOR BETWEEN
TCM AND COMBINATION METER.
1) Disconnect the connectors from TCM and
combination meter.
2) Measure the resistance of harness between
TCM and combination meter.
Connector & terminal
(B55) No. 7 — (i12) No. 4:
58 CHECK HARNESS CONNECTOR BETWEEN
TCM AND INHIBITOR SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM, inhib-
itor switch and combination meter.
3) Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 7 — Chassis ground:
59 CHECK HARNESS CONNECTOR BETWEEN
TCM AND INHIBITOR SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM and
inhibitor switch.
3) Measure the resistance of the harness
between TCM and inhibitor switch connector.
Connector & terminal
(B55) No. 19 — (T7) No. 6:
60 CHECK INPUT SIGNAL FOR TCM.
1) Turn the ignition switch to OFF.
2) Connect the connector to TCM and inhibitor
switch.
3) Turn the ignition switch to ON.
4) Shift the select lever to "1" range.
5) Measure the voltage between TCM and
chassis ground.
Connector & terminal
(B55) No. 19 (+) — Chassis ground (–):
61 CHECK INPUT SIGNAL FOR TCM.
1) Shift the select lever to any range other than
"1".
2) Measure the voltage between TCM and
chassis ground.
Connector & terminal
(B55) No. 19 (+) — Chassis ground (–):
62 CHECK "1" RANGE INDICATOR LIGHT.
1) Turn the ignition switch to OFF.
2) Remove the combination meter.
63 CHECK HARNESS CONNECTOR BETWEEN
TCM AND COMBINATION METER.
1) Disconnect the connectors from TCM and
combination meter.
2) Measure the resistance of harness between
TCM and combination meter.
Connector & terminal
(B55) No. 19 — (i12) No. 5:
Check
Is the resistance less than 1 Ω? Go to step 65.
Is the resistance 1 MΩ or
more?
Is the resistance less than 1 Ω? Go to step 60.
Is the voltage less than 1 V
when the shift lever is in "1"
range?
Is the voltage 8 V or more?
Is the "1" range indicator light
OK?
Is the resistance less than 1 Ω? Go to step 65.
4AT(D)(diag)-40
Yes No
Repair the open
circuit of harness
between TCM and
combination meter,
and the poor con-
tact of the TCM
connector.
Go to step 59.
Repair the ground
short circuit in "2"
range circuit.
Repair the open
circuit of harness
between TCM and
inhibitor switch
connector, and
poor contact of the
connector.
Go to step 61. Go to step 65.
Go to step 65. Replace the TCM.
<Ref. to 4AT-64,
Transmission Con-
trol Module
(TCM).>
Go to step 63. Replace the com-
bination meter.
<Ref. to IDI-11,
Combination
Meter.>
Repair the open
circuit of harness
between TCM and
combination meter,
and the poor con-
tact of the TCM
connector.