Battery - Electronic Drains Which Shut Off When the Battery Cable is Disconnected
WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- Repeat the steps of the battery drain testing.
- Make sure all the doors are closed and accessories are off. Without starting the engine, turn the key to the ON position for a moment and then OFF. Wait a few minutes for the illuminated entry lamps to turn off, if equipped.
- Connect the ammeter and read the amperage draw.
The current reading (current drain) should be less than 0.05 amp. If current drain exceeds 0.05 amp after a few minutes, and if this drain did not show in previous tests, the drain is most likely caused by a malfunctioning electronic component. As in previous tests, remove the fuses from the BJB/CJB one at a time to locate the problem circuit.