Subaru Legacy 2004 Service Manual page 2589

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
3 CHECK ABSCM&H/U.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the inspection mode.
4) Read the DTC.
4 CHECK OTHER DTC DETECTION.
5 CHECK OPEN CIRCUIT IN LATERAL G SEN-
SOR OUTPUT HARNESS AND GROUND
HARNESS.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM.
3) Measure the resistance between TCM con-
nector terminals.
Connector & terminal
(B54) No. 13 — (B55) No. 6:
6 CHECK GROUND SHORT OF HARNESS.
Measure the resistance between TCM connec-
tor and chassis ground.
Connector & terminal
(B54) No. 13 — Chassis ground:
7 CHECK LATERAL G SENSOR.
1) Remove the console box.
2) Remove the lateral G sensor from vehicle.
3) Connect the connector to lateral G sensor.
4) Connect the connector to the TCM.
5) Turn the ignition switch to ON.
6) Measure the voltage between lateral G
sensor connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (
8 CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (
9 CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (
10 CHECK TCM.
1) Turn the ignition switch to OFF.
2) Connect all the connectors.
3) Erase the memory.
4) Perform the inspection mode.
5) Read the DTC.
11 CHECK OTHER DTC DETECTION.
Is the same DTC displayed?
Is any other DTC displayed?
Is the resistance 5.0 — 6.0
k"?
Is the resistance more than 1
M"?
Is the voltage 2.3 — 2.7 V
when the lateral G sensor is
horizontal?
$
):
Is the voltage 3.3 — 4.3 V
when lateral G sensor is
inclined to the right to 90#?
$
):
Is the voltage 0.7 — 1.7 V
when lateral G sensor is
inclined to the left to 90#?
$
):
Is the same DTC displayed?
Is any other DTC displayed?
5AT(diag)-130
Check Yes
Replace the TCM.
<Ref. to 5AT-61,
Transmission Con-
trol Module
(TCM).>
Perform the diag-
nosis according to
DTC.
Go to step 6.
Go to step 7.
Go to step 8.
Go to step 9.
Go to step 10.
Replace the TCM.
<Ref. to 5AT-61,
Transmission Con-
trol Module
(TCM).>
Perform the diag-
nosis according to
DTC.
No
Go to step 4.
Temporary poor
contact occurs.
Repair the har-
ness connector
between lateral G
sensor and TCM.
Repair the har-
ness between lat-
eral G sensor and
TCM.
Replace the TCM.
<Ref. to 5AT-61,
Transmission Con-
trol Module
(TCM).>
Replace the lat-
eral G sensor.
<Ref. to 5AT-63,
Lateral G Sensor.>
Replace the lat-
eral G sensor.
<Ref. to 5AT-63,
Lateral G Sensor.>
Replace the lat-
eral G sensor.
<Ref. to 5AT-63,
Lateral G Sensor.>
Go to step 11.
Temporary poor
contact occurs.