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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 242 (Charging System - Generators & Regulators - Excursion, F250-F550 Super Duty (Gasoline)) >> On-Vehicle Testing >> Battery Drains That Shut Off When Battery Cable Is Disconnected Test

Battery Drains That Shut Off When Battery Cable Is Disconnected Test

WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform battery drain test. See BATTERY DRAIN TEST . Ensure all doors are closed and accessories are off. Without starting engine, turn ignition switch to RUN position for a moment, and then turn ignition OFF. Wait a few minutes for illuminated entry lamps to turn off (if equipped).
  2. Connect ammeter between negative battery cable and negative battery post. Disconnect negative battery cable from negative battery post, without breaking the ammeter connection to prevent modules from resetting. Read amperage draw.
  3. Amperage draw should be less than 50 milliamps. If current draw exceeds 50 milliamps, remove fuses from central junction box one at a time to locate problem circuit.
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