console SUBARU LEGACY 1997 Service Workshop 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 to step8Y2.
B4M1248A
8Y2CHECK SPECIFICATIONS OF
ABSCM&H/U.
Check specifications of the mark to the ABSCM&H/U.
Mark Model
C3 AWD AT
C4 AWD MT
: Is an ABSCM for AWD model installed on a
FWD model?
CAUTION:
Be sure to turn ignition switch to OFF when removing
ABSCM&H/U.
: Replace ABSCM&H/U.
: Go to step8Y3.
B4M0911B
8Y3
CHECK INPUT VOLTAGE OF G SENSOR.
1) Turn ignition switch to OFF.
2) Remove console box.
3) Disconnect G sensor from body. (Do not disconnect
connector.)
4) Turn ignition switch to ON.
5) Measure voltage between G sensor connector termi-
nals.
Connector & terminal
(P11) No. 1 (+)—No.3():
: Is the voltage between 4.75 and 5.25 V?
: Go to step8Y4.
: Repair harness/connector between G sensor and
ABSCM&H/U.
73
4-4dBRAKES [ABS 5.3i TYPE]
8. Diagnostics Chart with Trouble Code by ABS Warning Light

B4M0911B
10AG15
CHECK INPUT VOLTAGE OF G SENSOR.
1) Turn ignition switch to OFF.
2) Remove console box.
3) Disconnect G sensor from body. (Do not disconnect
connector.)
4) Turn ignition switch to ON.
5) Measure voltage between G sensor connector termi-
nals.
Connector & terminal
(P11) No. 1 (+)—No.3():
: Is the voltage between 4.75 and 5.25 V?
: Go to step10AG16.
: Repair harness/connector between G sensor and
ABSCM&H/U.
B4M1261A
10AG16CHECK 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 connector
terminals.
Connector & terminal
(F49) No. 30—No. 28:
: Is the resistance between 4.3 and 4.9 kΩ?
: Go to step10AG17.
: Repair harness/connector between G sensor and
ABSCM&H/U.
168
4-4dBRAKES [ABS 5.3i TYPE]
10. Diagnostics Chart with Select Monitor

B4M0927
10AH1CHECK OUTPUT OF G SENSOR USING
SELECT MONITOR.
1) Press [F], [1] and [0] on the select monitor.
2) Read the select monitor display.
: Is the indicated reading between 2.1 and 2.5
V when the G sensor is in horizontal posi-
tion?
: Replace ABSCM&H/U.
: Go to step10AH2.
B4M1263A
10AH2
CHECK BATTERY SHORT OF HARNESS.
1) Turn ignition switch to OFF.
2) Remove console box.
3) Disconnect connector from G sensor.
4) Disconnect connector from ABSCM&H/U.
5) Measure voltage between ABSCM&H/U connector and
chassis ground.
Connector & terminal
(F49) No. 6 (+)—Chassis ground ():
: Is the voltage less than 1 V?
: Go to step10AH3.
: Repair harness between G sensor and
ABSCM&H/U.
B4M1263A
10AH3
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 ():
: Is the voltage less than 1 V?
: Go to step10AH4.
: Repair harness between G sensor and
ABSCM&H/U.
172
4-4dBRAKES [ABS 5.3i TYPE]
10. Diagnostics Chart with Select Monitor

B4M0915
10AI7
CHECK G SENSOR.
1) Remove console box.
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) Measure voltage between G sensor connector termi-
nals.
Connector & terminal
(P11) No. 2 (+)—No.1():
: Is the voltage between 2.1 and 2.5 V when G
sensor is horizontal?
: Go to step10AI8.
: Replace G sensor.
B4M0917A
10AI8
CHECK G SENSOR.
Measure voltage between G sensor connector terminals.
Connector & terminal
(R70) No. 2 (+)—No.1():
: Is the voltage between 3.7 and 4.1 V when G
sensor is inclined forwards to 90°?
: Go to step10AI9.
: Replace G sensor.
B4M0918A
10AI9
CHECK G SENSOR.
Measure voltage between G sensor connector terminals.
Connector & terminal
(R70) No. 2 (+)—No.1():
: Is the voltage between 0.5 and 0.9 V when G
sensor is inclined backwards to 90°?
: Go to step10AI10.
: Replace G sensor.
177
4-4dBRAKES [ABS 5.3i TYPE]
10. Diagnostics Chart with Select Monitor

10AJ1CHECK 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 to step10AJ2.
B4M0927
10AJ2CHECK OUTPUT OF G SENSOR USING
SELECT MONITOR.
1) Press [F], [1] and [0] on the select monitor.
2) Read the select monitor display.
: Is the indicated reading between 2.1 and 2.5
V when the vehicle is in horizontal position?
: Go to step10AJ3.
: Go to step10AJ8.
B4M0917A
10AJ3CHECK OUTPUT OF G SENSOR USING
SELECT MONITOR.
1) Turn ignition switch to OFF.
2) Remove console box.
3) Remove G sensor from vehicle. (Do not disconnect
connector.)
4) Turn ignition switch to ON.
5) Press [F], [1] and [0] on the select monitor.
6) Read the select monitor display.
: Is the indicated reading between 3.7 and 4.1
V when G sensor is inclined forwards to
90°?
: Go to step10AJ4.
: Replace G sensor.
B4M0918A
10AJ4CHECK OUTPUT OF G SENSOR USING
SELECT MONITOR.
Read the select monitor display.
: Is the indicated reading between 0.5 and 0.9
V when G sensor is inclined backwards to
90°?
: Go to step10AJ5.
: Replace G sensor.
180
4-4dBRAKES [ABS 5.3i TYPE]
10. Diagnostics Chart with Select Monitor

B4M0915
10AJ9
CHECK G SENSOR.
1) Remove console box.
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) Measure voltage between G sensor connector termi-
nals.
Connector & terminal
(P11) No. 2 (+)—No.1():
: Is the voltage between 2.1 and 2.5 V when G
sensor is horizontal?
: Go to step10AJ10.
: Replace G sensor.
B4M0917A
10AJ10
CHECK G SENSOR.
Measure voltage between G sensor connector terminals.
Connector & terminal
(P11) No. 2 (+)—No.1():
: Is the voltage between 3.7 and 4.1 V when G
sensor is inclined forwards to 90°?
: Go to step10AJ11.
: Replace G sensor.
B4M0918A
10AJ11
CHECK G SENSOR.
Measure voltage between G sensor connector terminals.
Connector & terminal
(P11) No. 2 (+)—No.1():
: Is the voltage between 0.5 and 0.9 V when G
sensor is inclined backwards to 90°?
: Go to step10AJ12.
: Replace G sensor.
182
4-4dBRAKES [ABS 5.3i TYPE]
10. Diagnostics Chart with Select Monitor