Subaru LEGACY 2003 Service Manual page 145

DIAGNOSTICS CHART WITH SELECT MONITOR
Step
15 CHECK RESISTANCE OF ABS SENSOR.
1) Turn ignition switch OFF.
2) Disconnect connector from ABS sensor.
3) Measure resistance between ABS sensor
connector terminals.
Terminal
Front RH No. 1 — No. 2:
Front LH No. 1 — No. 2:
Rear RH No. 1 — No. 2:
Rear LH No. 1 — No. 2:
Is the measured value within the specified
range?
16 CHECK GROUND SHORT OF ABS SENSOR.
Measure resistance between ABS sensor and
chassis ground.
Terminal
Front RH No. 1 — Chassis ground:
Front LH No. 1 — Chassis ground:
Rear RH No. 1 — Chassis ground:
Rear LH No. 1 — Chassis ground:
Does the measured value exceed the specified
value?
17 CHECK HARNESS/CONNECTOR BETWEEN
VDCCM AND ABS SENSOR.
1) Connect connector to ABS sensor.
2) Disconnect connector from VDCCM.
3) Measure resistance at VDCCM connector
terminals.
Connector & terminal
DTC 22 / (F87) No. 14 — No. 15:
DTC 24 / (F87) No. 49 — No. 19:
DTC 26 / (F87) No. 18 — No. 46:
DTC 28 / (F87) No. 16 — No. 17:
Is the measured value within the specified
range?
18 CHECK GROUND SHORT OF HARNESS.
Measure resistance between VDCCM connec-
tor and chassis ground.
Connector & terminal
DTC 22 / (F87) No. 14 — Chassis
ground:
DTC 24 / (F87) No. 49 — Chassis
ground:
DTC 26 / (F87) No. 18 — Chassis
ground:
DTC 28 / (F87) No. 16 — Chassis
ground:
Does the measured value exceed the specified
value?
19 CHECK GROUND CIRCUIT OF VDCCM.
Measure resistance between VDCCM and
chassis ground.
Connector & terminal
(F87) No. 1 — Chassis ground:
(F87) No. 55 — Chassis ground:
Is the measured value less than the specified
value?
Value
1.0 — 1.5 kΩ
1 MΩ
1.0 — 1.5 kΩ
1 MΩ
0.5 Ω
VDC-143
VDC (DIAGNOSTICS)
Yes
Go to step 16. Replace ABS sen-
sor. Front <Ref. to
VDC-27, Front
ABS Sensor.>
Rear <Ref. to
VDC-28, Rear
ABS Sensor.>
Go to step 17. Replace ABS sen-
sor. Front <Ref. to
VDC-27, Front
ABS Sensor.>
Rear <Ref. to
VDC-28, Rear
ABS Sensor.>
Go to step 18. Repair harness/
connector
between VDCCM
and ABS sensor.
Go to step 19. Repair harness/
connector
between VDCCM
and ABS sensor.
Go to step 20. Repair VDCCM
ground harness.
No