Subaru Legacy 2004 Service Manual page 2969

ABS (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
CAUTION:
Remove foreign matters (dust, water, oil, etc.) from the ABSCM&H/U connector during removal and
installation.
NOTE:
• To check harness for broken wires or short circuits, shake trouble spot or connector.
• Refer to "Check List for Interview". <Ref. to ABS(diag)-4, Check List for Interview.>
Step
1 CHECK PRE-INSPECTION.
1) Ask the customer when and how the trou-
ble occurred using interview checklist. <Ref. to
ABS(diag)-4, Check List for Interview.>
2) Before performing diagnostics, check the
component which might affect ABS problems.
<Ref. to ABS(diag)-8, INSPECTION, General
Description.>
2 CHECK INDICATION OF DTC ON SCREEN.
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 the Subaru Se-
lect Monitor cannot be executed normally,
check the communication circuit. <Ref. to
ABS(diag)-18, COMMUNICATION FOR INI-
TIALIZING IMPOSSIBLE, INSPECTION, Sub-
aru Select Monitor.>
4) Read the DTC. <Ref. to ABS(diag)-25,
OPERATION, Read Diagnostic Trouble Code
(DTC).>
5) Record all DTCs and Freeze Frame Data.
3 PERFORM THE GENERAL DIAGNOSTICS.
1) Inspect using "General Diagnostic Table".
<Ref. to ABS(diag)-82, General Diagnostic
Table.>
2) Perform clear memory mode. <Ref. to
ABS(diag)-17, CLEAR MEMORY MODE,
OPERATION, Subaru Select Monitor.>
3) Perform the inspection mode. <Ref. to
ABS(diag)-26, Inspection Mode.>
4) Read the DTC. <Ref. to ABS(diag)-15,
READ DIAGNOSTIC TROUBLE CODE (DTC),
OPERATION, Subaru Select Monitor.>
Check the DTC does not displayed.
Basic Diagnostic Procedure
Is the component that might
influence the ABS problem
normal?
Is DTC displayed?
Does the ABS warning light go
off after turning the ignition
switch to ON?
ABS(diag)-2
Check Yes
Go to step 2.
Go to step 4.
Finish the diagno-
sis.
No
Repair or replace
each unit.
Go to step 3.
Check in accor-
dance with "Diag-
nostic Procedure
for ABS". <Ref. to
ABS(diag)-21,
WITHOUT DTC,
INSPECTION,
Subaru Select
Monitor.>