Question about 2003 Ford Explorer

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I have a battery drain of 4.2 amps. I have pulled all fuses and relays from the battery junction box and all the fuses and connectors from the fuse block under the dash and the main terminal connector there as well, There is no change in the current draw. I have the BJB isoltted when performing this. Where else should I look?

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  • jlowney660 Oct 12, 2010

    When the alternator is disconnected from the battery I show a drain when the battery junction box is supplied with power, however, when the alternator is supplied with power and not the BJB there is a drain. I have isolated this drain to the small wire from the battery which connects to the alternator via the plug,( the wire to the PCM when connecter does not induce a drain.) Where i am confused is, is the problem in the alternator or the some where else? How can I have a drain with all the fuses and relays pulled?

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  • Ford Master
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At the wires leaving from the battery - you have a short in one of them, their insulation is compromised.
But you should also check the alternator on its own - it might have also been shorted.
Use an ohmmeter for testing.

Posted on Oct 12, 2010

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  • Ford Master
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Look at heavier items, like alternator. by pulling the fuses and relays you have eliminated anything downstream from those items, just keep going. Diodes in the alternator are a prime suspect. Pull the wires to the alternator and test again...

Posted on Oct 12, 2010

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Visual Inspection Chart Mechanical Electrical
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Visual Inspection Chart Mechanical Electrical
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  • Door glass top run
  • Door window glass
  • Loose, corroded connectors
  • Circuitry
  • Window control switch
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1 Answer

My 2002 Chevrolet Blazer cranks like a champ the first time every time as long as I crank it every single day. But, if it sits two or more days and I do not crank it at all it is very hard to get it...


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1 Answer

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Here's the electrical diagram for 2005 Mercury Mountaineer Power Windows:
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archaeology_56.jpg

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My moms 1998 Ford Taurus's battery dies with the cables normally connected. If you take one of the cables off the battery, it works fine. You just need to reconnect before you start the engine. We were...


It sounds like something is drawing power with the key off. It could be the GEM module but I doubt it. There is a draw somewhere. Connect battery and pull fuses one at a time to see if curent drain stops. You will need an ampmeter in series with the battery and the postive cable. Expensive. Get one from pick n pull salvage yard real cheap.


  • Check the following fuse junction panel fuses: fuse 23 (5A), fuse 20 (5A), and fuse 8 (5A).



  • Section 13-09A: Gauges/Warning Devices, Chime/Buzzer System 1998 Taurus/Sable Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 03/16/1998
    Generic Electronic Module (GEM) Removal
    The generic electronic module (GEM) is connected to the rear of the fuse junction panel (14A067) .
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    1. Remove two nuts retaining fuse junction panel to dash panel (01610) .
    1. Pull upper ears of fuse junction panel down out of retaining bracket.
    1. Disengage locking tangs and disconnect three harness connectors from bottom of GEM.
    1. Turn fuse junction panel over and remove screw retaining GEM to fuse junction panel .
    1. Disconnect and remove GEM from fuse junction panel .
    Installation
    1. Follow removal procedure in reverse order.
    1. Tighten GEM to fuse junction panel screw to 1-2 Nm (9-17 lb-in).
    1. Tighten fuse junction panel retaining nuts to 4-6 Nm (36-53 lb-in).


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      Item Part Number Description 1 14B205 Generic Electronic Module (GEM) 2 - Mounting Ear (Part of 14A067) 3 14A067 Fuse Junction Panel 4 - Screw (Part of 14A067) 5 - Generic Electronic Module (GEM) to Fuse Junction Panel Connector A - Tighten to 1-2 Nm (9-17 Lb-In)

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    1 Answer

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