Subaru Impreza 2003 Service Manual page 2338

ABS
C: INSPECTION
Step
1 CHECK SUBARU SELECT MONITOR.
2 CHECK G SENSOR.
1)Turn the ignition switch to OFF.
2)Remove the G sensor from vehicle.
3)Connect the connector to G sensor.
4)Turn the ignition switch to ON.
5)Measure the voltage between G sensor con-
nector terminals.
Connector & terminal
(B292) No. 2 (+) — No. 3 ( − − − − ):
3 CHECK G SENSOR.
Measure the voltage between G sensor con-
nector terminals.
Connector & terminal
(B292) No. 2 (+) — No. 3 ( − − − − ):
4 CHECK G SENSOR.
Measure the voltage between G sensor con-
nector terminals.
Connector & terminal
(B292) No. 2 (+) — No. 3 ( − − − − ):
5 CHECK G SENSOR.
1)Turn the ignition switch to OFF.
2)Connect the Subaru Select Monitor to data
link connector.
3)Turn the Subaru Select Monitor into {BRAKE
CONTROL} mode.
4)Set the display in the {Current Data Display
& Save} mode.
5)Read the G sensor output voltage.
6 CHECK G SENSOR.
1)Remove the console box.
2)Remove the G sensor from vehicle. (Do not
disconnect the connector.)
3)Read the Subaru Select Monitor display.
7 CHECK G SENSOR.
Read the Subaru Select Monitor display.
G SENSOR
Check
Do you have a SUBARU
SELECT MONITOR?
Is the voltage 2.3±0.2 V when
G sensor is horizontal?
Is the voltage 3.9±0.2 V when
G sensor is inclined forwards
to 90°?
Is the voltage 0.7±0.2 V when
G sensor is inclined backwards
to 90°?
Is the indicated reading
2.3±0.2 V when the vehicle is
in horizontal position?
Is the indicated reading
3.9±0.2 V when G sensor is
inclined forwards to 90°?
Is the indicated reading
0.7±0.2 V when G sensor is
inclined backwards to 90°?
ABS-22
Yes
Go to step 5. Go to step 2.
Go to step 3. Replace the G
sensor.
Go to step 4. Replace the G
sensor.
G sensor is nor- Replace the G
mal. sensor.
Go to step 6. Replace the G
sensor.
Go to step 7. Replace the G
sensor.
G sensor is nor- Replace the G
mal. sensor.
No