Subaru Legacy 2003 Service Manual page 2791

ABS
C: INSPECTION
1 DO YOU HAVE SUBARU SELECT
MONITOR?
2 CHECK G SENSOR.
1) Turn ignition switch to OFF.
2) Remove G sensor from vehicle.
3) Connect connector to G sensor.
4) Turn ignition switch to ON.
5) Measure voltage between G sensor con-
nector terminals.
Connector & terminal:
(R70) No. 2 (+) — No. 3 ( − − − − )
Is the voltage within the specified value
when G sensor is horizontal?
3 CHECK G SENSOR.
Measure voltage between G sensor connector
terminals.
Connector & terminal:
(R70) No. 2 (+) — No. 3 ( − − − − )
Is the voltage within the specified value when
G sensor is inclined forwards to 90°?
4 CHECK G SENSOR.
Measure voltage between G sensor connector
terminals.
Connector & terminal:
(R70) No. 2 (+) — No. 3 ( − − − − )
Is the voltage within the specified value when
G sensor is inclined backwards to 90°?
5 CHECK G SENSOR.
1) Turn ignition switch to OFF.
2) Connect select monitor connector to data
link connector.
3) Turn select monitor into {BRAKE CON-
TROL} mode.
4) Set the display in the {Current Data Display
& Save} mode.
5) Read the G sensor output voltage.
Is the indicated reading within the specified
value when the vehicle is in horizontal posi-
tion?
6 CHECK G SENSOR.
1) Remove console box.
2) Remove G sensor from vehicle. (Do not
disconnect connector.)
3) Read the select monitor display.
Is the voltage within the specified vaue
when G sensor is inclined forwards to 90°?
7 CHECK G SENSOR.
Read the select monitor display.
Is the voltage within the specified value when
G sensor is inclined backwards to 90°?
Step
G SENSOR
Value
Available.
2.1 — 2.5 V
3.7 — 4.1 V
0.5 — 0.9 V
201 — 2.5 V
3.7 — 4.1 V
0.5 — 0.9 V
ABS-22
Yes
Go to step 5. Go to step 2.
Go to step 3. Replace G sensor.
Go to step 4. Replace G sensor.
G sensor is nor- Replace G sensor.
mal.
Go to step 6. Replace G sensor.
Go to step 7. Replace G sensor.
G sensor is nor- Replace G sensor.
mal.
No