Air Bag Control Module: Description and Operation

The air bag diagnostic monitor continually monitors all air bag system components and wiring connections for possible faults when the ignition switch is in RUN.

- If the air bag diagnostic monitor detects a fault in the air bag system, a Diagnostic Trouble Code (DTC) will be written to the air bag diagnostic monitor's Non-Volatile Memory (NVM).

- This diagnostic trouble code will then be displayed on the air bag indicator lamp.

- After servicing, the diagnostic trouble code may then be cleared from NVM.

- Performing system diagnostics is the main purpose of the air bag diagnostic monitor.

Note: The air bad diagnostic monitor does not deploy the air bags in the event of a collision.

The crash sensors are "hard-wired" to the air bags. Thus the crash sensors determine when the air bag will be deployed.