1997 SUBARU LEGACY Service Repair Manual

Page 2825 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0869B
10AC5CHECK BROKEN WIRE IN GROUND CIR-
CUIT OF RELAY BOX.
Measure resistance between relay box connector and
valve relay installing point.
: Connector & terminal
To (F50) No. 3—Valve relay i

Page 2826 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0880B
10AC8CHECK BATTERY SHORT OF SOLENOID
VA LV E .
1) Disconnect connector (ABS1, F9) from hydraulic unit.
2) Turn ignition switch to ON.
3) Measure voltage between hydraulic unit connector and
c

Page 2827 of 3342

SUBARU LEGACY 1997  Service Repair Manual 4) Turn ignition switch to OFF.
5) Measure voltage between ABSCM connector and chas-
sis ground.
: Connector & terminal
(F49) No. 30 (+)—Chassis ground (�)
(F49) No. 24 (+)—Chassis ground (�)
(F49

Page 2828 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0969
AD: 52 M. RELAY OPEN
—OPEN CIRCUIT OF MOTOR RELAY—
DIAGNOSIS:
Faulty motor
Faulty motor relay
Faulty harness connector
TROUBLE SYMPTOM:
ABS does not operate.
10AD1.Check resistance of

Page 2829 of 3342

SUBARU LEGACY 1997  Service Repair Manual From the former page.
10AD15.
Check battery short between relay box and
ABSCM.
10AD16.Check ground short at ABSCM monitor
terminal.
10AD17.Check ABSCM motor drive terminal.
10AD18.Check motor operatio

Page 2830 of 3342

SUBARU LEGACY 1997  Service Repair Manual WIRING DIAGRAM:
B4M1049
225
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor

Page 2831 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0886A
10AD1
CHECK RESISTANCE OF MOTOR RELAY.
1) Turn ignition switch to OFF.
2) Remove motor relay from relay box.
3) Measure resistance between motor relay terminals.
: Terminals
No. 85—No. 86
I

Page 2832 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0890B
10AD4CHECK INPUT VOLTAGE OF RELAY
BOX.
1) Disconnect connector (F8) from relay box.
2) Measure voltage between relay box connector and
chassis ground.
: Connector & terminal
(F8) No. 2 (+)—