1997 SUBARU LEGACY Service Repair Manual

Page 2945 of 3342

SUBARU LEGACY 1997  Service Repair Manual 8W6CHECK POOR CONTACT IN CONNEC-
TORS.
Turn ignition switch to OFF.
: Is there poor contact in connector between
generator, battery and ABSCM&H/U? <Ref.
to FOREWORD [T3C1].>
: Repair connector.
: Go t

Page 2946 of 3342

SUBARU LEGACY 1997  Service Repair Manual X: TROUBLE CODE 54
—ABNORMAL STOP LIGHT SWITCH—
DIAGNOSIS:
Faulty stop light switch
TROUBLE SYMPTOM:
ABS does not operate.
WIRING DIAGRAM:
B4M1258
70
4-4dBRAKES [ABS 5.3i TYPE]
8. Diagnostics Ch

Page 2947 of 3342

SUBARU LEGACY 1997  Service Repair Manual 8X1
CHECK STOP LIGHTS COME ON.
Depress the brake pedal.
: Do stop lights come on?
: Go to step8X2.
: Repair stop lights circuit.
B4M1259A
8X2
CHECK OPEN CIRCUIT IN HARNESS.
1) Turn ignition switch to

Page 2948 of 3342

SUBARU LEGACY 1997  Service Repair Manual Y: TROUBLE CODE 56
—ABNORMAL G SENSOR OUTPUT
VOLTAGE—
DIAGNOSIS:
Faulty G sensor output voltage
TROUBLE SYMPTOM:
ABS does not operate.
WIRING DIAGRAM:
B4M1260
72
4-4dBRAKES [ABS 5.3i TYPE]
8. Di

Page 2949 of 3342

SUBARU LEGACY 1997  Service Repair Manual 8Y1CHECK ALL FOUR WHEELS FOR FREE
TURNING.
: Have the wheels been turned freely such as
when the vehicle is lifted up, or operated on
a rolling road?
: The ABS is normal. Erase the trouble code.
: Go

Page 2950 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M1261A
8Y4CHECK OPEN CIRCUIT IN G SENSOR
OUTPUT HARNESS AND GROUND HAR-
NESS.
1) Turn ignition switch to OFF.
2) Disconnect connector from ABSCM&H/U.
3) Measure resistance between ABSCM&H/U connecto

Page 2951 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M1263A
8Y7
CHECK BATTERY SHORT OF HARNESS.
1) Turn ignition switch to ON.
2) Measure voltage between ABSCM&H/U connector and
chassis ground.
Connector & terminal
(F49) No. 6 (+)—Chassis ground (�)

Page 2952 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0915
8Y9
CHECK G SENSOR.
1) Turn ignition switch to OFF.
2) Remove G sensor from vehicle.
3) Connect connector to G sensor.
4) Connect connector to ABSCM&H/U.
5) Turn ignition switch to ON.
6) Meas