Subaru IMPREZA 2002 Service Manual page 188

I
BASIC DIAGNOSTIC PROCEDURE
ABS (DIAGNOSTICS)
Check
Is unit that might influence the
ABS problem normal?
Is the diagnostic trouble code
1. Basic Diagnostic Procedure
A: PROCEDURE
1.
WITHOUT SUBARU SELECT MONITOR
CAUTION:
Remove foreign matter (dust, water, etc.) from the ABSCM&H/U connector during removal and instal-
lation.
NOTE:
To check harness for broken wires or short circuits, shake it while holding it or the connector.
When the ABS warning light illuminates, read and record the diagnostic trouble code (DTC) indicated by
ABS warning light.
Yes
Go to step 2.
Go to step
3 .
Step
I CHECK PRE-INSPECTION.
1)Ask the customer when and how the trouble
occurred using interview checklist. <Ref. to
ABS-6, Check List for Interview.>
2)Before performing diagnosis, inspect the unit
which might influence the ABS problem. <Ref.
to ABS-9, INSPECTION, General Descrip-
tion.>
!
CHECK INDICATION OF DIAGNOSTIC
TROUBLE CODE (DTC).
Calling up diagnostic trouble code (DTC).
<Ref. to ABS-20, Read Diagnostic Trouble
Code (DTC).>
Is only the start code issued? I CHECK DIAGNOSTIC TROUBLE CODE
(DTC).
NOTE:
Record all diagnostic trouble codes (DTC).
I PERFORM THE GENERAL DIAGNOSTICS.
1 )Inspect using "General Diagnostics Table".
<Ref. to ABS-I 83, General Diagnostics Table.>
2)Perform the clear memory mode. <Ref. to
TOR, OPERATION, Clear Memory Mode.>
3)Perform the inspection mode. <Ref. to ABS-
21, Inspection Mode.>
Calling up the diagnostic trouble code (DTC).
<Ref. to ABS-20, Read Diagnostic Trouble
Code (DTC).>
ABS-22, WITHOUT SUBARU SELECT MONI-
Go to step 4.
Is only the start code issued? IComplete the
diagnosis.
No
Repair or replace
each unit.
Inspect using diag
nostic chart for
ABS warning light
failure.cRef. to
ABS-29, Diagnos-
tics Chart with
Diagnosis Con-
nector.>
NOTE:
Call up diagnostic
trouble code (DTC]
again after inspect.
ing ABS warnins
light. <Ref. to ABS.
20, Read Diagnos
tic Trouble Code
(DTC).>
Go to step 5.
Go to step 5.
ABS-2