Subaru 2003 LEGACY Service Manual page 141
Transmission section
Hide thumbs
Also See for 2003 LEGACY:
- Service manual (4441 pages) ,
- Owner's manual (472 pages) ,
- Quick reference index (80 pages)
Table of Contents
Advertisement
DIAGNOSTIC PROCEDURE FOR NO-DIAGNOSTIC TROUBLE CODE (DTC)
Step
46
CHECK HARNESS CONNECTOR BETWEEN
TCM AND INHIBITOR SWITCH.
1) Turn ignition switch to OFF.
2) Disconnect connectors from TCM, inhibitor
switch and combination meter.
3) Measure resistance of harness between
TCM and chassis ground.
Connector & terminal
(B55) No. 4 — Chassis ground:
Does the measured value exceed the spec-
ified value?
47
CHECK HARNESS CONNECTOR BETWEEN
TCM AND INHIBITOR SWITCH.
1) Turn ignition switch to OFF.
2) Disconnect connector from TCM and inhibi-
tor switch.
3) Measure resistance of harness between
TCM and inhibitor switch connector.
Connector & terminal
(B55) No. 5 — (B12) No. 7:
Is the measured value less than the speci-
fied value?
48
CHECK INPUT SIGNAL FOR TCM.
1) Turn ignition switch to OFF.
2) Connect connector to TCM and inhibitor
switch.
3) Turn ignition switch to ON.
4) Move select lever to 3 range.
5) Measure voltage between TCM and chas-
sis ground.
Connector & terminal
(B55) No. 5 (+) — Chassis ground (–):
Is the measured value less than the speci-
fied value?
49
CHECK INPUT SIGNAL FOR TCM.
1) Position select lever to any other than 3
range.
2) Measure voltage between TCM and chas-
sis ground.
Connector & terminal
(B55) No. 5 (+) — Chassis ground (–):
Does the measured value exceed the spec-
ified value?
50
CHECK "3" RANGE INDICATOR LIGHT
BULB.
1) Turn ignition switch to OFF.
2) Remove combination meter.
3) Remove "3" range indicator light bulb from
combination meter.
Is "3" range indicator light bulb OK?
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Value
1 MΩ
1 Ω
1 V
8 V
Bulb is normal.
AT-139
Yes
Go to step 47.
Repair ground
short circuit in "D"
range circuit.
Go to step 48.
Repair open circuit
in harness
between TCM and
inhibitor switch
connector, and
poor contact in
coupling connec-
tor.
Go to step 49.
Go to step 65.
Go to step 65.
Replace TCM.
<Ref. to AT-76,
Transmission Con-
trol Module
(TCM).>
Go to step 51.
Replace "3" range
indicator light bulb.
<Ref. to IDI-14,
Combination
Meter Assembly.>
No
Advertisement
Table of Contents
