Subaru 2009 IMPREZA Service Manual page 2436

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 OF CONNECTOR.
Turn the ignition switch to OFF.
12 CHECK ABSCM&H/U.
1) Connect all connectors.
2) Clear the memory. <Ref. to ABS(diag)-21,
Clear Memory Mode.>
3) Perform the Inspection Mode. <Ref. to
ABS(diag)-20, Inspection Mode.>
4) Read the DTC.
13 CHECK FOR ANY OTHER DTC ON DISPLAY. Is any other DTC displayed?
Check
Is the voltage 3.6 — 4.1 V when
the G sensor is inclined forward
to 90°?
Is the voltage 0.5 — 1.0 V when
G sensor is inclined back 90°?
Is there poor contact of connec-
tors between ABSCM&H/U and
G sensor?
Is the same DTC displayed?
ABS(diag)-56
Yes No
Go to step 10. Replace G sensor.
<Ref. to ABS-18, G
Sensor.>
Go to step 11. Replace G sensor.
<Ref. to ABS-18, G
Sensor.>
Repair the connec- Go to step 12.
tor.
Replace the Go to step 13.
ABSCM only. <Ref.
to ABS-8,
REPLACEMENT,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Check DTC using Temporary poor
"List of Diagnostic contact occurs.
Trouble Code
(DTC)". <Ref. to
ABS(diag)-26, List
of Diagnostic Trou-
ble Code (DTC).>