Subaru LEGACY 2003 Service Manual page 36

DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
ABS (DIAGNOSTICS)
8 CHECK ABSCM&H/U TERMINAL.
1) Turn ignition switch to OFF.
2) Check for damage at the ABSCM&H/U ter-
minal.
Is the any damage on termianl?
9 CHECK ABSCM&H/U.
Measure resistance between ABSCM&H/U ter-
minals.
Terminal
No. 22 — No. 23:
Does the measured value exceed the specified
value?
10 CHECK WIRING HARNESS.
Measure resistance between connector (F45)
or (F2) and chassis ground.
Connector & terminal
LHD: (F45) No. 5 — Chassis ground:
RHD: (F2) No. 18 — Chassis ground ( − − − − ):
Is the measured value less than the specified
value?
11 CHECK WIRING HARNESS.
1) Connect connector to ABSCM&H/U.
2) Measure resistance between connector
(F45) or (F2) and chassis ground.
Connector & terminal
LHD: (F45) No. 5 — Chassis ground:
RHD: (F2) No. 18 — Chassis ground ( − − − − ):
Is the measured value within the specified
range?
12 CHECK POOR CONTACT IN ABSCM&H/U
CONNECTOR.
Is there poor contact in ABSCM&H/U connec-
tor?
Step Value
There is no damage on termi-
nal.
1 MΩ
0.5 Ω
1 MΩ
There is no poor contact.
ABS-34
Yes
Go to step 9. Replace
ABSCM&H/U.
<Ref. to ABS-6,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Go to step 10. Replace
ABSCM&H/U.
<Ref. to ABS-6,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Go to step 11. Repair harness.
Go to step 12. Repair harness.
Repair connector. Replace
ABSCM&H/U.
<Ref. to ABS-6,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
No