Air Bag Control Module: Description and Operation

Airbag Control Module (ACM) Location - Typical:

The Airbag Control Module (ACM) contains the sensing element, safing sensor, and energy reserve capacitor. The module is mounted on the tunnel/floor pan between the gear shift lever and the park brake lever. The ACM monitors the system to determine the system readiness. The ACM contains on-board diagnostics, and Will illuminate the AIRBAG warning lamp in the cluster when a fault occurs. The warning equipment is tested for six to eight seconds every time the vehicle is started.