Yukon/Denali 2WD V8-4.8L VIN V (2005)
Impact Sensor: Description and Operation
Front End Sensors
INFLATABLE RESTRAINT FRONT END SENSORS
The front end sensors are equipped on vehicles to supplement the SIR system performance. The front end sensors are electronic and are not part of the
deployment loops, but instead provide inputs to the SDM. The front end sensors can assist in determining the severity of some frontal collisions. The
SDM uses the input from the front end sensors to assist in determining the severity of a frontal collision further supporting air bag deployment. If the
SDM determines a deployment is warranted, the SDM will cause current to flow through the deployment loops deploying the frontal air bags.
