1997 SUBARU LEGACY Service Repair Manual

Page 2761 of 3342

SUBARU LEGACY 1997  Service Repair Manual : Are there broken or damaged teeth in the
ABS sensor pole piece or the tone wheel?
: Replace ABS sensor or tone wheel.
: Go to next step.
11) Measure hub runout.
: Is the runout less than 0.05 mm (0.

Page 2762 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0953
N: 31 FR. EV VALVE
—ABNORMAL FRONT RH INLET SOLENOID
VA LV E—
B4M0954
O: 33 FL. EV VALVE
—ABNORMAL FRONT LH INLET SOLENOID
VA LV E—
B4M0955
P: 35 RR. EV VALVE
—ABNORMAL REAR RH INLET

Page 2763 of 3342

SUBARU LEGACY 1997  Service Repair Manual DIAGNOSIS:
Faulty harness/connector
Faulty inlet solenoid valve in hydraulic unit
TROUBLE SYMPTOM:
ABS does not operate.
10Q1.Check freeze frame data.



10Q2.Check the condition when the troubl

Page 2764 of 3342

SUBARU LEGACY 1997  Service Repair Manual From the former page.
10Q13.
Check battery short of solenoid valve.
10Q14.Check battery short of harness.
10Q15.Check ground short of harness.
10Q16.Check harness connector between ABSCM
and hydraulic

Page 2765 of 3342

SUBARU LEGACY 1997  Service Repair Manual WIRING DIAGRAM:
B4M1046
B4M0957A
10Q1
CHECK FREEZE FRAME DATA.
Press
F,
E,
1and
5on the select monitor.
: Is the select monitor LED 5 off? Was the
ABS inactive when the problem occurred?
: Go to step1

Page 2766 of 3342

SUBARU LEGACY 1997  Service Repair Manual 10Q2CHECK THE CONDITION WHEN THE
TROUBLE OCCURRED.
Ask the vehicle owner about driving conditions when the
trouble occurred. Attempt to duplicate the conditions.
: Is the trouble immediately apparent?

Page 2767 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0825B
10Q4CHECK GROUND SHORT OF SOLENOID
VA LV E .
Measure resistance between hydraulic unit connector and
chassis ground.
: Trouble code/Connector & terminal
31/to (F9) No. 4—Chassis ground
33/t

Page 2768 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0829A
10Q6CHECK HARNESS CONNECTOR
BETWEEN ABSCM AND HYDRAULIC
UNIT.
1) Connect connector to hydraulic unit.
2) Measure resistance between ABSCM connector termi-
nals.
: Trouble code/Connector & ter