Subaru Legacy 2004 Service Manual page 3045

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ABS (DIAGNOSTICS)
Step
9 CHECK G SENSOR.
Measure the voltage between G sensor con-
nector terminals.
Connector & terminal
(B292) No. 2 (+) — No. 3 (
10 CHECK G SENSOR.
Measure the voltage between G sensor con-
nector terminals.
Connector & terminal
(B292) No. 2 (+) — No. 3 (
11 CHECK POOR CONTACT IN CONNECTOR.
Turn the ignition switch to OFF.
12 CHECK ABSCM&H/U.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the inspection mode.
4) Read the DTC.
13 CHECK ANY OTHER DTC ON DISPLAY.
Is the voltage 3.6 — 4.1 V
when G sensor is inclined for-
wards to 90"?
#
):
Is the voltage 0.5 — 1.0 V
when G sensor is inclined
backward to 90"?
#
):
Is there poor contact in con-
nector between ABSCM&H/U
and G sensor?
Is the same DTC displayed?
Is any other DTC displayed?
ABS(diag)-78
Check Yes
Go to step 10.
Go to step 11.
Repair the con-
nector.
Replace the
ABSCM only.
<Ref. to ABS-8,
REPLACEMENT,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Inspect the DTC
using "List of Diag-
nostic Trouble
Code (DTC)".
<Ref. to
ABS(diag)-39, List
of Diagnostic Trou-
ble Code (DTC).>
No
Replace G sen-
sor. <Ref. to ABS-
18, G Sensor.>
Replace G sen-
sor. <Ref. to ABS-
18, G Sensor.>
Go to step 12.
Go to step 13.
Temporary poor
contact occurs.