Subaru 2006 Legacy, Manual

Page: 3609 / 4302

5AT(diag)-116
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
3 CHECK DTC OF ABS.
Is DTC of ABS detected? Perform the diag-
nosis according to
DTC of ABS. Temporary poor
contact occurs.
Recheck for defec-
tive parts in har-
ness and
connectors.
4 CHECK OUTPUT OF LATERAL G SENSOR
USING SUBARU SELECT MONITOR.
1) Select {Current Data Display & Save} in
Subaru Select Monitor.
2) Read the lateral G sensor output on Subaru
Select Monitor.
Is the reading indicated on
monitor display 2.3 to 2.7 V
when lateral G sensor is level? Go to step 5 . Go to step 8 .
5 CHECK POOR CONTACT OF CONNECTOR.
Turn the ignition switch to OFF.
Is there poor contact in con-
nector between TCM and lat-
eral G sensor? Repair the con-
nector. Go to step
6
.
6 CHECK ABSCM&H/U.
1) Connect all connectors.
2) Perform the Clear Memory Mode.
3) Perform the Inspection Mode.
4) Read the DTC.
Is the same DTC displayed? Replace the TCM.
<Ref. to 5AT-56,
Transmission Con-
trol Module
(TCM).> Go to step
7
.
7 CHECK OTHER DTC DETECTION.
Is any other DTC displayed? Perform the diag-
nosis according to
DTC. Temporary poor
contact occurs.
8 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:
Is the resistance between 5.0
and 6.0 k
Ω
?
Go to step
9
. Repair the har-
ness between lat-
eral G sensor and
TCM.
9 CHECK GROUND SHORT OF HARNESS.
Measure the resistance between TCM connec-
tor and chassis ground.
Connector & terminal
(B54) No. 13 — Chassis ground:
Is the resistance more than 1
M
Ω
?
Go to step
10
. Repair the har-
ness between lat-
eral G sensor and
TCM.
Replace the TCM.
<Ref. to 5AT-56,
Transmission Con-
trol Module
(TCM).>
10 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 TCM connector.
5) Turn the ignition switch to ON.
6) Measure the voltage between lateral G
sensor connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
Is the voltage 2.3 — 2.7 V
when lateral G sensor is in hor-
izontal position? Go to step
11
. Replace the lat-
eral G sensor.
<Ref. to 5AT-57,
Lateral G Sensor.>
11 CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
Is the voltage 3.3 — 4.3 V
when lateral G sensor is
inclined 90° to right? Go to step 12 . Replace the lat-
eral G sensor.
<Ref. to 5AT-57,
Lateral G Sensor.>
Step Check Yes No
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