Subaru LEGACY 2006 Manual page 3606

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
1 CHECK VEHICLE CONDITION.
2 CHECK DTC OF TCM.
3 CHECK DTC OF ABS.
4 CHECK OUTPUT OF LATERAL G SENSOR
USING SUBARU SELECT MONITOR.
1) Select {Current Data Display & Save} in
Subaru Select Monitor.
2) Read the Subaru Select Monitor display.
5 CHECK OUTPUT OF LATERAL G SENSOR
USING SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Remove the console box.
3) Remove the lateral G sensor from vehicle.
(Do not disconnect the connector.)
4) Turn the ignition switch to ON.
5) Select {Current Data Display & Save} in
Subaru Select Monitor.
6) Read the Subaru Select Monitor display.
6 CHECK OUTPUT OF LATERAL G SENSOR
USING SUBARU SELECT MONITOR.
Read the Subaru Select Monitor display.
7 CHECK POOR CONTACT OF CONNECTOR.
Turn the ignition switch to OFF.
8 CHECK ABSCM&H/U.
1) Connect all connectors.
2) Perform the Clear Memory Mode.
3) Perform the Inspection Mode.
4) Read the DTC.
9 CHECK OTHER DTC DETECTION.
10 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:
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
Is the vehicle a model with
VDC, which has the VDC OFF
switch on the instrument
panel?
Is DTC of AT CAN communica-
tion detected?
Is DTC of ABS detected?
Is the reading indicated on
monitor display 2.3 to 2.7 V?
Is the value on the display 3.3
— 4.3 V with the lateral G sen-
sor inclined 90° to right?
Is the value on the display 0.7
— 1.7 V with the lateral G sen-
sor inclined 90° to left?
Is there poor contact in con-
nector between TCM and lat-
eral G sensor?
Is the same DTC displayed?
Is any other DTC displayed?
Is the resistance between 5.0
and 6.0 kΩ?
5AT(diag)-113
Yes No
Go to step 2. Go to step 4.
Perform the diag- Go to step 3.
nosis according to
DTC.
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC of ABS. Recheck for defec-
tive parts in har-
ness and
connectors.
Go to step 5. Go to step 10.
Go to step 6. Replace the lat-
eral G sensor.
<Ref. to 5AT-57,
Lateral G Sensor.>
Go to step 7.
Replace the lat-
eral G sensor.
<Ref. to 5AT-57,
Lateral G Sensor.>
Repair the con- Go to step 8.
nector.
Go to step 9.
Replace the TCM.
<Ref. to 5AT-56,
Transmission Con-
trol Module
(TCM).>
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC.
Go to step 11. Repair the har-
ness between lat-
eral G sensor and
TCM.