Battery - Electronic Drains Which Shut Off When the Battery Cable is Disconnected
WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. 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 all accessories are off. Without starting the engine, turn the key to the ON position for a moment and then OFF. Wait 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 50 mA (0.05 amp). If the current drain exceeds 50 mA (0.05 amp), and if this drain did not show in previous tests, the drain is most likely caused by an inoperative electronic component. As in previous tests, remove the fuses from the battery/central junction box one at a time to locate the problem circuit.