1997 SUBARU LEGACY display

WIRING DIAGRAM:
B4M1040
B4M0921
10X1CHECK SPECIFICATIONS OF ABSCM
USING SELECT MONITOR.
1) Press
F,
0and
0on the select monitor.
2) Read the select monitor display.
: Is an ABSCM for AT model installed on a MT
model?
: Replace ABSCM.
: Go to step10X2.
189
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor

B4M0973
10AG1CHECK OUTPUT OF STOP LIGHT
SWITCH USING SELECT MONITOR.
1) Press
F,
0and
9on the select monitor.
2) Depress the brake pedal.
3) Read the stop light switch output on the select monitor
display.
: Is the reading indicated on monitor display
less than 1.5 V?
: Go to next step.
: Go to step10AG1.
4) Release the brake pedal.
5) Read the stop light switch output on the select monitor
display.
: Is the reading indicated on monitor display
greater than 4.5 V?
: Go to step10AG4.
: Go to step10AG2.
10AG2
CHECK IF STOP LIGHTS COME ON.
Depress the brake pedal.
: Do stop lights turn on?
: Go to step10AG3.
: Repair stop lights circuit.
B4M0908A
10AG3
CHECK OPEN CIRCUIT OF HARNESS.
1) Turn ignition switch to OFF.
2) Disconnect connector from ABSCM.
3) Depress brake pedal.
4) Measure voltage between ABSCM connector and chas-
sis ground.
: Connector & terminal
(F49) No. 36—Chassis ground
Is voltage 10—13 V?
: Go to step10AG4.
: Repair harness between stop light switch and
ABSCM.
248
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor

B4M0921
10AH1CHECK SPECIFICATIONS OF ABSCM
USING SELECT MONITOR.
1) Press
F,
0and
0on the select monitor.
2) Read the select monitor display.
: Is an ABSCM for 4WD model installed on a
FWD model?
: Replace ABSCM.
: Go to step10AH2.
B4M0927
10AH2CHECK OUTPUT OF G SENSOR USING
SELECT MONITOR.
1) Press
F,
1and
0on the select monitor.
2) Read the select monitor display.
: Is the indicated reading 2.3±0.2 V when the
G sensor is in horizontal position?
: Go to step10AH3.
: Go to step10AH5.
10AH3CHECK POOR CONTACT IN CONNEC-
TOR BETWEEN ABSCM AND G SENSOR.
: Is there poor contact in connector between
ABSCM and G sensor?
: Repair connector.
: Go to step10AH4.
10AH4
CHECK ABSCM.
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the trouble code.
: Is the same trouble code as in the current
diagnosis still being output?
: Replace ABSCM.
: Go to next.
: Are other trouble codes being output?
: Proceed with the diagnosis corresponding to the
trouble code.
: A temporary poor contact.
252
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor

B4M0977
10AH5
CHECK FREEZE FRAME DATA.
1) Press
F,
Eand
5on the select monitor.
: Is the reading indicated on monitor display
0 km?
: Go to next step.
: Go to step10AH9.
B4M0978
2) Press the scroll key so that FE6 appears on the moni-
tor display.
: Is the reading indicated on monitor display
0 km?
: Go to next step.
: Go to step10AH9.
B4M0979
3) Press the scroll key so that FE7 appears on the moni-
tor display.
: Is the reading indicated on monitor display
0 km?
: Go to next step.
: Go to step10AH9.
B4M0980
4) Press the scroll key so that FE8 appears on the moni-
tor display.
: Is the reading indicated on monitor display
0 km?
: Go to next step.
: Go to step10AH9.
B4M0981
5) Press the scroll key so that FE14 appears on the moni-
tor display.
: Is the reading indicated on monitor display
greater than 3.65 V?
: Go to step10AH6.
: Go to step10AH9.
253
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor

B4M0927
10AI1CHECK OUTPUT OF G SENSOR USING
SELECT MONITOR.
1) Press
F,
1and
0on the select monitor.
2) Read the select monitor display.
: Is the indicated reading 2.3±0.2 V when the
G sensor is in horizontal position?
: Replace ABSCM.
: Go to step10AI2.
B4M0914A
10AI2
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.
5) Turn ignition switch to ON.
6) Measure voltage between ABSCM connector and chas-
sis ground.
: Connector & terminal
(F49) No. 7 (+)—Chassis ground ()
Is voltage 0 V?
: Go to next step.
: Repair harness between G sensor and ABSCM.
7) Turn ignition switch to OFF.
8) Measure voltage between ABSCM connector and chas-
sis ground.
: Connector & terminal
(F49) No. 7 (+)—Chassis ground ()
Is voltage 0 V?
: Go to step10AI3.
: Repair harness between G sensor and ABSCM.
10AI3
CHECK ABSCM.
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the trouble code.
: Is the same trouble code as in the current
diagnosis still being output?
: Replace ABSCM.
: Go to next.
: Are other trouble codes being output?
: Proceed with the diagnosis corresponding to the
trouble code.
: A temporary poor contact.
259
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor

WIRING DIAGRAM:
B4M1050
B4M0927
10AJ1CHECK OUTPUT OF G SENSOR USING
SELECT MONITOR.
1) Press
F,
1and
0on the select monitor.
2) Read the select monitor display.
: Is the indicated reading 2.3±0.2 V when the
G sensor is in horizontal position?
: Go to step10AJ2.
: Go to step10AJ5.
10AJ2CHECK POOR CONTACT IN CONNEC-
TOR BETWEEN ABSCM AND G SENSOR.
: Is there poor contact in connector between
ABSCM and G sensor?
: Repair connector.
: Go to step10AJ3.
261
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor

WIRING DIAGRAM:
B4M1050
10AK1CHECK 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 step10AK2.
B4M0927
10AK2CHECK OUTPUT OF G SENSOR USING
SELECT MONITOR.
1) Press
F,
1and
0on the select monitor.
2) Read the select monitor display.
: Is the indicated reading 2.3±0.2 V when the
vehicle is in horizontal position?
: Go to next step.
: Go to step10AK5.
265
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor

3) Remove console box.
4) Remove G sensor from vehicle. (Do not disconnect
connector.)
B4M0917A
5) Read the select monitor display.
: Is the indicated reading 3.9±0.2 V when G
sensor is inclined forwards to 90°?
: Go to next.
: Replace G sensor.
B4M0918A
: Is the indicated reading 0.7±0.2 V when G
sensor is inclined backwards to 90°?
: Go to step10AK3.
: Replace G sensor.
10AK3CHECK POOR CONTACT IN CONNEC-
TOR BETWEEN ABSCM AND G SENSOR.
: Is there poor contact in connector between
ABSCM and G sensor?
: Repair connector.
: Go to step10AK4.
266
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor