Subaru Impreza 2003 Service Manual page 2372

DIAGNOSTICS PROCEDURE WITHOUT DIAGNOSTIC TROUBLE CODE (DTC)
ABS (DIAGNOSTICS)
Step
8 CHECK GROUND CIRCUIT OF ABSCM&H/U.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ABSCM&H/
U.
3)Measure the resistance between
ABSCM&H/U and chassis ground.
Connector & terminal
LHD: (B301) No. 23 — Chassis ground:
RHD: (F49) No. 23 — Chassis ground:
9 CHECK WIRING HARNESS.
Measure the resistance between connector
(B37) and chassis ground.
Connector & terminal
LHD: (B37) No. 15 — Chassis ground:
RHD: (B37) No. 1 — Chassis ground:
10 CHECK POOR CONTACT IN CONNECTORS.
Turn the ignition switch to OFF.
Check
Is the resistance less than 0.5
Ω?
Is the resistance less than 0.5
Ω?
Is there poor contact in con-
nectors between combination
meter and ABSCM&H/U?
ABS-32
Yes
Go to step 9. Repair open circuit
in the ABSCM&H/
U ground harness.
Go to step 10. Repair open circuit
in the harness/
connector.
Repair the con- Replace the
nector. ABSCM&H/U.
<Ref. to ABS-7,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
No