C 1500 Truck 2WD V8-4.8L VIN V (2000)
Impact Sensor: Description and Operation
Inflatable Restraint Front End Discriminating Sensor
The presence of an inflatable restraint front end discriminating sensor enhances the SIR system performance. Use of the inflatable restraint front end
discriminating sensor provides timely deployment of the air bags during some crashes. Although this is a mechanical sensor, the inflatable restraint front
end discriminating sensor is not part of the deployment loop, but instead provides an input the the inflatable restraint Sensing and Diagnostic Module
(SDM).