Subaru 2002 IMPREZA Service Manual page 2102

ABS (DIAGNOSTICS)
2. WITH SUBARU SELECT MONITOR
CAUTION:
Remove foreign matter (dust, water, etc.) from the ABSCM&H/U connector during removal and instal-
lation.
NOTE:
• To check the harness for broken wires or short circuits, shake it while holding it or the connector.
• Check list for interview. <Ref. to ABS-6, Check List for Interview.>
Step
1 CHECK PRE-INSPECTION.
1)Ask the customer when and how 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.>
2 CHECK INDICATION OF DIAGNOSTIC
TROUBLE CODE (DTC) DISPLAY.
1)Turn the ignition switch to OFF.
2)Connect the SUBARU SELECT MONITOR
to data link connector.
3)Turn the ignition switch to ON and SUBARU
SELECT MONITOR to ON.
NOTE:
If the communication function of select monitor
cannot be executed normally, check communi-
cation circuit. <Ref. to ABS-92, COMMUNICA-
TION FOR INITIALIZING
Diagnostics Chart with Subaru Select Monitor.>
4)Read the DTC. <Ref. to ABS-19, READ
CURRENT DATA, OPERATION, Subaru
Select Monitor.>
5)Record all DTCs and frame data.
3 PERFORM THE GENERAL DIAGNOSTICS.
1)Inspect using "General Diagnostics Table".
<Ref. to ABS-179, General Diagnostics
Table.>
2)Perform the clear memory mode. <Ref. to
ABS-19, CLEAR MEMORY MODE, OPERA-
TION, Subaru Select Monitor.>
3)Perform the inspection mode. <Ref. to ABS-
21, Inspection Mode.>
4)Calling up the DTC. <Ref. to ABS-18, READ
DIAGNOSTIC TROUBLE CODE (DTC),
OPERATION, Subaru Select Monitor.>
BASIC DIAGNOSTIC PROCEDURE
Is the unit that might influence
the ABS problem normal?
Is the corresponding trouble
encoding?
IMPOSSIBLE,
Is no DTC designated and
does the ABS warning light go
out after turning on?
ABS-4
Check
Go to step 2.
Go to step 3.
Complete the
diagnosis.
Yes No
Repair or replace
each unit.
Go to step 4.
Go to step 4.