Subaru 2004 LEGACY, Service Manual

Page: 297 / 609

ABS(diag)-81
ABS (DIAGNOSTICS)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
10 CHECK G SENSOR.
1) Remove the console box.
2) Remove the G sensor from vehicle.
3) Connect the connector to G sensor.
4) Connect the connector to ABSCM&H/U.
5) Turn the ignition switch to ON.
6) Measure the voltage between G sensor
connector terminals.
Connector & terminal
(B292) No. 2 (+) — No. 3 (
−
):
Is the voltage 2.1 — 2.5 V
when G sensor is on a level? Go to step 11. Replace G sen-
sor. <Ref. to ABS-
18, G Sensor.>
11 CHECK G SENSOR.
Measure the voltage between G sensor con-
nector terminals.
Connector & terminal
(B292) No. 2 (+) — No. 3 (
−
):
Is the voltage 3.6 — 4.1 V
when G sensor is inclined for-
wards to 90
°
?
Go to step 12. Replace G sen-
sor. <Ref. to ABS-
18, G Sensor.>
12 CHECK G SENSOR.
Measure the voltage between G sensor con-
nector terminals.
Connector & terminal
(B292) No. 2 (+) — No. 3 (
−
):
Is the voltage 0.5 — 1.0 V
when G sensor is inclined
backward to 90
°
?
Go to step 13. Replace G sen-
sor. <Ref. to ABS-
18, G Sensor.>
13 CHECK ABSCM&H/U.
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. Is the same DTC displayed? Replace the
ABSCM only.
<Ref. to ABS-8,
REPLACEMENT,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).> Go to step 14.
14 CHECK ANY OTHER DTC ON DISPLAY. Is any other DTC displayed? Inspect the DTC
using “List of Diag-
nostic Trouble
Code (DTC)”.
<Ref. to
ABS(diag)-39, List
of Diagnostic Trou-
ble Code (DTC).> Temporary poor
contact occurs.
Step Check Yes No