1997 SUBARU LEGACY Service Repair Manual

Page 3033 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0971
AE: TROUBLE CODE 52 MOTOR
—ABNORMAL MOTOR—
DIAGNOSIS:
Faulty motor
Faulty motor relay
Faulty harness connector
TROUBLE SYMPTOM:
ABS does not operate.
WIRING DIAGRAM:
B4M1255
157
4-4dBR

Page 3034 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M1256A
10AE1CHECK INPUT VOLTAGE OF
ABSCM&H/U.
1) Turn ignition switch to OFF.
2) Disconnect connector from ABSCM&H/U.
3) Turn ignition switch to ON.
4) Measure voltage between ABSCM&H/U connector an

Page 3035 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M1234A
10AE3CHECK INPUT VOLTAGE OF
ABSCM&H/U.
1) Run the engine at idle.
2) Measure voltage between ABSCM&H/U connector and
chassis ground.
Connector & terminal
(F49) No. 1 (+)—Chassis ground (�):

Page 3036 of 3342

SUBARU LEGACY 1997  Service Repair Manual 10AE6CHECK 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

Page 3037 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0972
AF: TROUBLE CODE 54 BLS
—ABNORMAL STOP LIGHT SWITCH—
DIAGNOSIS:
Faulty stop light switch
TROUBLE SYMPTOM:
ABS does not operate.
WIRING DIAGRAM:
B4M1258
161
4-4dBRAKES [ABS 5.3i TYPE]
10.

Page 3038 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0973
10AF1CHECK OUTPUT OF STOP LIGHT
SWITCH USING SELECT MONITOR.
1) Press [F], [0] and [9] on the select monitor.
2) Depress the brake pedal.
3) Read the stop light switch output on the select mon

Page 3039 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M1259A
10AF4
CHECK OPEN CIRCUIT IN HARNESS.
1) Turn ignition switch to OFF.
2) Disconnect connector from ABSCM&H/U.
3) Depress brake pedal.
4) Measure voltage between ABSCM&H/U connector and
chassis

Page 3040 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0974
AG: TROUBLE CODE 56 G SENSOR LINE
—OPEN OR SHORT CIRCUIT OF
G SENSOR—
DIAGNOSIS:
Faulty G sensor output voltage
TROUBLE SYMPTOM:
ABS does not operate.
WIRING DIAGRAM:
B4M1260
164
4-4dBRA