Impact Sensor: Service and Repair

The SIR sensor replacement policy requires that you replace the sensors in the area of accident damage. The area of accident damage is defined as the portion of the vehicle which is crushed, bent, or damaged due to a collision; for example, a moderate collision where the front of the vehicle impacts a tree. If the vehicle has an SIR sensor mounted forward of the radiator, replace the sensor as needed:

^ Whether or not the air bags deployed
^ Even if the sensor appears to be undamaged

Some sensor damage may not be visible, such as slight bending of the mounting bracket or cuts in the wire insulation. Such damage can also cause improper operation to the SIR sensing system. Do not try to determine whether the sensor is undamaged; replace the sensor. Also, if a diagnostic trouble code table indicates a malfunctioning sensor, replace the sensor.