Inflatable Restraint Side Impact Sensor

The inflatable restraint Side Impact Sensor (SIS) performs the following functions in the air bag system:
^ Side Impact Crash Detection-Each SIS monitors vehicle acceleration and velocity changes to detect side impact crashes that are severe enough to warrant deployment.
^ Side Impact Air Bag Deployment-During a side impact crash of sufficient force, the SDM will send enough current to flow through the respective side to deploy the side impact air bag.

The SIS connects to the SDM using a 2-way connector.

The driver and passenger SIS modules are treated as a discriminating sensor in frontal deployments.