Subaru IMPREZA GD 2007 Series Manual page 2674

asieps_tobira_IM_US.book 35 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
21 CHECK "1" RANGE SWITCH.
22 CHECK HARNESS CONNECTOR BETWEEN
INHIBITOR SWITCH AND CHASSIS
GROUND.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from inhibitor
switch.
3) Measure the resistance of harness between
inhibitor switch and chassis ground.
Connector & terminal
(T7) No. 5 — Chassis ground:
23 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. 14 — (T7) No. 9:
24 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 "P" range.
5) Measure the voltage between TCM and
chassis ground.
Connector & terminal
(B55) No. 14 (+) — Chassis ground (–):
25 CHECK INPUT SIGNAL FOR TCM.
1) Shift the select lever to any range other than
"P".
2) Measure the voltage between TCM and
chassis ground.
Connector & terminal
(B55) No. 14 (+) — Chassis ground (–):
26 CHECK "P" RANGE INDICATOR LIGHT.
1) Turn the ignition switch to OFF.
2) Remove the combination meter.
27 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. 14 — (i12) No. 14:
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
When the "2" range is selected,
does the "1" range LED illumi-
nate?
Is the resistance less than 1 Ω? Go to step 23.
Is the resistance less than 1 Ω? Go to step 24.
Is the voltage less than 1 V?
Is the voltage 8 V or more?
Is the "P" range indicator light
bulb OK?
Is the resistance less than 1 Ω? Go to step 65.
4AT(D)(diag)-35
Yes No
Go to step 64. Replace the TCM.
<Ref. to 4AT-64,
Transmission Con-
trol Module
(TCM).>
Repair the open
circuit of harness
between inhibitor
switch and chassis
ground, and poor
contact of the con-
nector.
Repair the open
circuit of harness
between TCM and
inhibitor switch
connector, and
poor contact of the
connector.
Go to step 25. Go to step 65.
Go to step 65. Replace the TCM.
<Ref. to 4AT-64,
Transmission Con-
trol Module
(TCM).>
Go to step 27. Replace the com-
bination meter.
<Ref. to IDI-11,
Combination
Meter.>
Repair the open
circuit of harness
between TCM con-
nector and combi-
nation meter, and
the poor contact of
the connector.