1997 SUBARU LEGACY Service Repair Manual

Page 2633 of 3342

SUBARU LEGACY 1997  Service Repair Manual B: TROUBLE CODE 21 (FRONT RH)
TROUBLE CODE 23 (FRONT LH)
TROUBLE CODE 25 (REAR RH)
TROUBLE CODE 27 (REAR LH)
—ABNORMAL ABS SENSOR (OPEN CIRCUIT
OR INPUT VOLTAGE TOO HIGH)—
DIAGNOSIS:
Faulty ABS s

Page 2634 of 3342

SUBARU LEGACY 1997  Service Repair Manual WIRING DIAGRAM:
B4M1035
29
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code

Page 2635 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0806B
B4M1036A
8B1
CHECK RESISTANCE OF ABS SENSOR.
1) Turn ignition switch to OFF.
2) Disconnect connector from ABS sensor.
3) Measure resistance of ABS sensor connector terminals.
: Trouble code/C

Page 2636 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0809A
8B3CHECK HARNESS CONNECTOR
BETWEEN ABSCM AND ABS SENSOR.
1) Connect connector to ABS sensor.
2) Measure resistance between ABSCM connector termi-
nals.
: Trouble code/Connector & terminal
21/

Page 2637 of 3342

SUBARU LEGACY 1997  Service Repair Manual 8B5CHECK ABS SENSOR MECHANICAL
TROUBLE.
: Tightening torque:
32±10 N⋅m (3.3±1.0 kg-m, 24±7 ft-lb)
Are the ABS sensor installation bolts tight-
ened securely?
: Go to next.
: Tighten ABS sensor in

Page 2638 of 3342

SUBARU LEGACY 1997  Service Repair Manual 8B6CHECK POOR CONTACT IN CONNEC-
TOR BETWEEN ABSCM AND ABS SEN-
SOR.
: Is there poor contact in connectors between
ABSCM and ABS sensor?
: Repair connector.
: Go to step8B7.
8B7
CHECK ABSCM.
1) Connec

Page 2639 of 3342

SUBARU LEGACY 1997  Service Repair Manual C: TROUBLE CODE 22 (FRONT RH)
TROUBLE CODE 24 (FRONT LH)
TROUBLE CODE 26 (REAR RH)
TROUBLE CODE 28 (REAR LH)
—ABNORMAL ABS SENSOR (ABNORMAL
ABS SENSOR SIGNAL)—
DIAGNOSIS:
Faulty ABS sensor signal

Page 2640 of 3342

SUBARU LEGACY 1997  Service Repair Manual WIRING DIAGRAM:
B4M1035
8C1CHECK ABS SENSOR MECHANICAL
TROUBLE.
: Tightening torque:
32±10 N⋅m (3.3±1.0 kg-m, 24±7 ft-lb)
Are the ABS sensor installation bolts tight-
ened securely?
: Go to next.