Air Bag Electronic Crash Sensor (ECS) Module

The air bag Electronic Crash Sensor (ECS) module:
^ discriminates between events that warrant frontal air bag deployment and events that do not.
^ provides current to the inflators to deploy the air bags in the event of a deployable crash.
^ monitors the air bag Supplemental Restraint System (SRS) for faults.
^ illuminates the air bag indicator if a fault is detected.
^ flashes the air bag indicator to indicate the Lamp Fault Code (LFC) detected.
^ communicates through the Data Link Connector (DLC) the current and historical Diagnostic Trouble Codes (DTCs).
^ activates a chime if the air bag indicator is not available.

Several important features of the ECS and its functions within the system are described. Air Bag System Functions It is necessary that these key features and functions are well understood.