Subaru LEGACY 2003 Service Manual page 150

DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR
ABS (DIAGNOSTICS)
9 CHECK G SENSOR.
1) Remove console box.
2) Remove G sensor from vehicle.
3) Connect connector to G sensor.
4) Connect connector to ABSCM&H/U.
5) Turn ignition switch to ON.
6) Measure voltage between G sensor con-
nector terminals.
Connector & terminal
(R70) No. 2 (+) — No. 3 ( − − − − ):
Is the voltage within the specified range
when G sensor is horizontal?
10 CHECK G SENSOR.
Measure voltage between G sensor connector
terminals.
Connector & terminal
(R70) No. 2 (+) — No. 3 ( − − − − ):
Is the voltage within the specified range when
G sensor is inclined forwards to 90°?
11 CHECK G SENSOR.
Measure voltage between G sensor connector
terminals.
Connector & terminal
(R70) No. 2 (+) — No. 3 ( − − − − ):
Is the voltage within the specified range when
G sensor is inclined backwards to 90°?
12 CHECK ABSCM&H/U.
1) Turn ignition switch to OFF.
2) Connect all connectors.
3) Erase the memory.
4) Perform inspection mode.
5) Read out the DTC.
Is the same DTC still being output?
13 CHECK ANY OTHER DTC APPEARANCE.
Are other DTC being output?
Step Value
2.1 - 2.5 V
3.7 - 4.1 V
0.5 - 0.9 V
Same DTC is not indicated.
Other DTC is not indicated.
ABS-148
Yes
Go to step 10. Replace G sen-
sor. <Ref. to ABS-
21, G Sensor.>
Go to step 11. Replace G sen-
sor. <Ref. to ABS-
21, G Sensor.>
Go to step 12. Replace G sen-
sor. <Ref. to ABS-
21, G Sensor.>
Go to step 13. Replace
ABSCM&H/U.
<Ref. to ABS-6,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
A temporary poor Proceed with the
contact. diagnosis corre-
sponding to the
DTC.
No