Lateral Accelerometer: Service and Repair

G Sensor





REMOVAL AND INSTALLATION
1. Turn ignition switch to OFF.
2. Remove console cover.
3. Disconnect connector from G sensor.
4. Remove G sensor from body.
5. Install in the reverse order of removal.

CAUTION: Do not drop or bump G sensor.

INSPECTION WITH CIRCUIT TESTER





15B1 : 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 connector terminals.
Connector & terminal
(P9) No. 2 (+)-No. 3(-)
Check : Is the voltage 2.3 ± 0.2 V when G sensor is horizontal?
Yes : Go to step 15B2.
No : Replace G sensor.





15B2 : CHECK G SENSOR
Measure voltage between G sensor connector terminals.
Connector & terminal
(P9) No. 2 (+)-No. 3 (-)
Check : Is the voltage 3.9 ± 0.2 V when G sensor is inclined forward to 90°?
Yes : Go to step 15B3.
No : Replace G sensor.





15B3 : CHECK G SENSOR
Measure voltage between G sensor connector terminals.
Connector & terminal
(P9) No. 2 (I)-No. 3 (-)
Check : Is the voltage 0.7 ± 0.2 V when G sensor is inclined backward to 90°?
Yes : G sensor is normal.
No : Replace G sensor.

INSPECTION WITH SELECT MONITOR
15C1 : CHECK G SENSOR
1. Turn ignition switch to OFF.
2. Connect select monitor connector to data link connector.
3. Turn select monitor into (ABS/TCS) mode.
4. Set the display in the (Current Data Display & Save) mode.
5. Read the G sensor output voltage.
Check : Is the indicated reading 2.3 ± 0.2 V when the vehicle is in horizontal position?
Yes : Go to step 15C2.
No : Replace G sensor.





15C2 : CHECK G SENSOR
1. Remove console box.
2. Remove G sensor from vehicle. (Do not disconnect connector.)
3. Read the select monitor display.
Check : Is the indicated reading 3.9 ± 0.2 V when G sensor is inclined forward to 90°?
Yes : Go to step 15C3.
No : Replace G sensor.





15C3 : CHECK G SENSOR
Read the select monitor display.
Check : Is the indicated reading 0.7 ± 0.2 V when G sensor is inclined backward to 90°?
Yes : G sensor is normal.
No : Replace G sensor.