Standby Power Supply: Description and Operation

The ECS includes an internal back-up power supply. This feature provides sufficient back-up power to deploy the air bags in the event that the battery or battery cables are damaged in a collision before the safing and air bag sensors close. The back-up power supply will deplete its stored energy approximately one minute after the battery ground cable is disconnected.

WARNING: TO AVOID ACCIDENTAL DEPLOYMENT AND POSSIBLE PERSONAL INJURY, THE BACKUP POWER SUPPLY MUST BE DEPLETED BEFORE REPAIRING OR REPLACING ANY AIR BAG SUPPLEMENTAL RESTRAINT SYSTEM (SRS) COMPONENTS. TO DEPLETE THE BACKUP POWER SUPPLY ENERGY, DISCONNECT THE BATTERY GROUND CABLE AND WAIT ONE MINUTE. BE SURE TO DISCONNECT AUXILIARY BATTERIES AND POWER SUPPLIES (IF EQUIPPED).