Air Bag Control Module: Description and Operation

The ACM/Air Bag System Diagnostic Module (ASDM) contains safing sensor and energy reserve capacitor, while the ACM/Air Bag Electronic Control Module (AECM) contains impact sensor and energy reserve capacitor. The ACM monitors system to determine system readiness. The ACM will store sufficient energy to deploy air bag for two minutes after battery has been disconnected. The ACM contains an on board diagnostics function that will illuminate air bag warning lamp when a system fault occurs.