Front Impact Severity Sensor

FRONT IMPACT SEVERITY SENSOR

Special Tool(s):

SPECIAL TOOL(S)

REMOVAL

WARNING:
- Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag module. This will reduce the risk of injury in the event of an accidental deployment.
- The restraint system diagnostic tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards.
- Vehicle sensor orientation is critical for correct system operation. If a vehicle equipped with an air bag supplemental restraint system (SRS) is involved in a collision, inspect the sensor mounting bracket and wiring pigtail for deformation. Replace and correctly position the sensor or any other damaged supplemental restraint system (SRS) components whether or not the air bag is deployed.

NOTE:
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
- Repair is made by installing a new part only. If the new part does not correct the condition, install the original part and carry out the diagnostic procedure again.

1. WARNING: To avoid accidental deployment and possible personal injury, the backup power supply must be depleted before repairing or replacing any front or side air bag supplemental restraint system (SRS) components and before servicing, replacing, adjusting or striking components near the front or side air bag sensors, such as doors, instrument panel, console, door latches, strikers, seats and hood latches.

The first row side impact sensors are located at or near the base of the B-pillars.

The second row side impact sensors (if equipped) are located at or near the base of the C-pillars.

To deplete the backup power supply energy, disconnect the battery ground cable and wait at least one minute. Be sure to disconnect auxiliary batteries and power supplies (if equipped).

Disconnect the battery ground cable and wait at least one minute.

2. WARNING: To reduce the risk of serious personal injury, read and follow all warnings, cautions, notes, and instructions in the supplemental restraint system (SRS) deactivation/reactivation procedure.

Deactivate the supplemental restraint system (SRS).

3. Remove the components in the order indicated in the illustration and table.

INSTALLATION







1. WARNING: The tightening torque of the air bag front impact severity sensor retaining bolt is critical for correct system operation.

NOTE:
- Make sure the negative battery cable is still disconnected before continuing with the installation portion of this procedure.
- Make sure the mounting bracket and front impact severity sensor mating surfaces are clean and free or foreign material.

To install, reverse the removal procedure.

2. Connect the battery ground cable.
3. With the restraint system diagnostic tools installed at all deployable devices, prove out the supplemental restraint system (SRS). Prove Out Procedure
4. Disconnect the battery ground cable and wait at least one minute.

5. WARNING: To reduce the risk of serious personal injury, read and follow all warnings, cautions, notes, and instructions in the supplemental restraint system (SRS) deactivation/reactivation procedure.

Reactivate the supplemental restraint system (SRS).

6. WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from the vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards.

With all the restraint system diagnostic tools removed, prove out the supplemental restraint system (SRS). Prove Out Procedure

Item 3: Front Impact Severity Sensor Installation Note

WARNING: To reduce the risk of serious personal injury, read and follow all warnings, cautions and notes at the beginning of the removal procedure.







1. Align the locator tabs of the front impact severity sensor to the openings in the mounting bracket sheet metal.