Subaru IMPREZA GD 2007 Series Manual page 3179

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ABS (DIAGNOSTICS)
Step
9 CHECK CONTAMINATION OF ABS WHEEL
SPEED SENSOR OR TONE WHEEL.
Remove the disc rotor or drum from the hub.
10 CHECK DAMAGE OF ABS WHEEL SPEED
SENSOR OR TONE WHEEL.
11 CHECK TONE WHEEL RUNOUT.
Measure the tone wheel runout.
12 CHECK ABSCM&H/U.
1) Turn the ignition switch to OFF.
2) Connect all connectors.
3) Erase the memory.
4) Perform the Inspection Mode.
5) Read the DTC.
13 CHECK OTHER DTC DETECTION.
J: DTC 31 FRONT RIGHT INLET VALVE MALFUNCTION
NOTE:
Refer to DTC 37 for the diagnostic procedure. <Ref. to ABS(diag)-51, DTC 37 REAR LEFT INLET VALVE
MALFUNCTION, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
K: DTC 33 FRONT LEFT INLET VALVE MALFUNCTION
NOTE:
Refer to DTC 37 for the diagnostic procedure. <Ref. to ABS(diag)-51, DTC 37 REAR LEFT INLET VALVE
MALFUNCTION, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
L: DTC 35 REAR RIGHT INLET VALVE MALFUNCTION
NOTE:
Refer to DTC 37 for the diagnostic procedure. <Ref. to ABS(diag)-51, DTC 37 REAR LEFT INLET VALVE
MALFUNCTION, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
Check
Is the ABS wheel speed sensor
piece or the tone wheel con-
taminated by dirt or other for-
eign matter?
Are there cracked or damaged
teeth in the protrusion of the
ABS wheel speed sensor or the
tone wheel?
Is the runout less than 0.05 mm
(0.0020 in)?
Is the same DTC still output?
Is there any other DTC
detected?
ABS(diag)-50
Yes No
Thoroughly Go to step 10.
remove dirt or
other foreign mat-
ter.
Replace the ABS Go to step 11.
wheel speed sen-
sor or tone wheel.
Front: <Ref. to
ABS-13, Front
ABS Wheel Speed
Sensor.> Rear:
<Ref. to ABS-16,
Rear ABS Wheel
Speed Sensor.>
and front: <Ref. to
ABS-18, Front
Tone Wheel.>
Rear: <Ref. to
ABS-19, Rear
Tone Wheel.>
Go to step 12.
Replace the tone
wheel. Front: <Ref.
to ABS-18, Front
Tone Wheel.>
Rear: <Ref. to
ABS-19, Rear
Tone Wheel.>
Replace the Go to step 13.
ABSCM&H/U.
<Ref. to ABS-6,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC.