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Thread: 2002 Battery & Fuse issue

  1. #1
    Join Date
    May 2015
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    1

    Default 2002 Battery & Fuse issue

    Hi All,

    I've got an 02 with a battery issue. The battery keeps dying, except... If fuses #5 (15A Radio/CD) and #25 (10A BCM1/IPC) are disconnected from the inside fuse box, no battery issue. Any ideas on what is going on related to those two fuses and the battery drain?

  2. #2
    Join Date
    Dec 2011
    Location
    New Haven, Ct
    Posts
    930

    Default

    HI there,

    Your VIN and also the amount of draw would be helpful to assist you.

    How long has the draw been there?? Are the battery terminal clean, torqued correctly with accurate battery bolts????

    Is the connections at the alternator and starter correctly clean and torqued???

    The reason I note this is that if any of these are intermittant connections, you could see an active circuit because the MODULES are waking up and turning the loads on.

    Allthebest, Paul
    GM World Class Certified Service Technician.
    Like us on Facebook: www.facebook.com/corvettemechanic
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  3. #3
    Join Date
    Jan 2015
    Location
    Columbia, SC
    Posts
    118

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    Do you have a Remote CD Changer in the trunk?

    Like Paul says, it would be most helpful if you did a drain test and see if you have two separate drains or if the drain actually only goes away when both fuses are pulled.

    Drain Testing:

    Suggest you remove the hood light bulb first so it does not provide a drain.

    For measuring battery drain I would hook up an ammeter to the negative side of the battery by removing the negative cable and measure between the cable and the negative battery post.

    When you connect the ammeter the car should draw several amps until it goes into "sleep" mode which can take several minutes. Normal sleep mode drain should be around 17-22 milliamps. You will need an ammeter that can transition from whatever the drain is down into the sleep mode.

    When the drain settles out you need to pull each fuse separately and determine the drain in each case. Pull one and measure the drain. Replace it and then pull the other one and measure the drain. If the BCM comes out of sleep mode.

    You also need to be validating that with both fuses pulled you get the sleep mode drain of around 17-22 milliamps.

  4. #4
    Join Date
    Dec 2011
    Location
    New Haven, Ct
    Posts
    930

    Default

    HI there,

    Along the drain lines, c5 will accrue up to 30 milliamps, which is considered normal by GM electrical drain standards.

    Allthebest, Paul
    GM World Class Certified Service Technician.
    Like us on Facebook: www.facebook.com/corvettemechanic
    Twitter: www.twitter.com/GMvettemechanic

  5. #5
    Join Date
    Jan 2015
    Location
    Columbia, SC
    Posts
    118

    Default

    Thanks Paul, I will expand my range in the future.

  6. #6
    Join Date
    Jun 2015
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    1

    Default

    My gauges stop working about a 1/2 hr in the ride, HELP!


    Sent from my iPad using Tapatalk

  7. #7
    Join Date
    Jul 2008
    Location
    Ontario, Calif.
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    3,014

    Default

    Quote Originally Posted by wesrock1 View Post
    My gauges stop working about a 1/2 hr in the ride, HELP!


    Sent from my iPad using Tapatalk

    wesrock1 what year and model Corvette?

  8. #8
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    Jan 2015
    Location
    Columbia, SC
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    118

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    Quote Originally Posted by wesrock1 View Post
    My gauges stop working about a 1/2 hr in the ride, HELP!


    Sent from my iPad using Tapatalk

    Why are you postng your problem in someone else's Thread? Not polite unless you have something similar to share as input.

  9. #9
    Join Date
    Dec 2011
    Location
    Southern California
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    815

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    Quote Originally Posted by dadaroo View Post
    Why are you postng your problem in someone else's Thread? Not polite unless you have something similar to share as input.


    Let's keep the threads to the point of the original post.

    Just start a new thread with the concern.
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