Econoline E150 1/2 Ton V8-5.4L CNG VIN M (1998)
Standby Power Supply: Description and Operation
The Electronic Crash Sensor (ECS) includes an internal backup power supply. This feature provides sufficient backup power to deploy the air bag in the
event the battery or battery cables are damaged in a collision before the safing and primary crash sensors close. The backup power supply will deplete its
stored energy approximately 1 minute after the battery ground cable is disconnected.
