Subaru Impreza 2003 Service Manual page 2510

DIAGNOSTICS PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ABS (DIAGNOSTICS)
Step
10 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 out the DTC.
11 CHECK ANY OTHER DTC APPEARANCE.
Check
Is the same DTC as in current
diagnosis still being output?
Are other DTCs being output? Proceed with the
ABS-170
Yes
Replace the Go to step 11.
ABSCM&H/U.
<Ref. to ABS-7,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
A temporary poor
diagnosis corre- contact.
sponding to DTC.
No