F 150 2WD Pickup V8-5.4L Prop SOHC VIN Z (1998)
Standby Power Supply: Service Precautions
WARNING: THE BACKUP POWER SUPPLY ENERGY MUST BE DEPLETED BEFORE ANY AIR BAG COMPONENT SERVICE IS
PERFORMED. TO DEPLETE THE BACKUP POWER SUPPLY ENERGY, DISCONNECT THE NEGATIVE BATTERY CABLE AND
WAIT ONE MINUTE.