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02 Firebird Dead/Won't start

This is a discussion on 02 Firebird Dead/Won't start within the General Help forums, part of the LSx Technical Help Section category; Hiya all, glad I found this forum I have a lil dilema here, I have an 02 Firebird T/A, I ...

  1. #1
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    02 Firebird Dead/Won't start

    Hiya all, glad I found this forum

    I have a lil dilema here, I have an 02 Firebird T/A, I was driving home from the gym and my entire dashboard gauges went dead like all to 0 save for the fuel gauge. Speedometer, Tachometer, Volts, etc all went to 0. I didn't dare turn the ignition off. I continued to my house about another 3 miles, when I got inside my garage, I turned the ignition off and went to re start my TA and nothing but silence, no lights, no gauges, no radio.

    I checked the battery and found it was reading 3.0VDC, I replaced the battery and went to re start my car. I have interior lights, radio, etc but no start, not even the lil click that I used to get when I turned the key. I do however get solenoid clicking when I disconnect and re connect the battery. Any help tis greatly appreciated

    2002 Firebird LS1 Automatic, 46k miles

    Micheal
    Last edited by Shamrox; 01-15-2009 at 11:15 AM.

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    Is the new battery showing about 12.7V?

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    Yes 12.5 VDC

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    Check all your fuses just to be sure.

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    All fuses under the hood in the engine compartment appear to be good, The relays however I am not sure how to test in a "powered-off" state.

    Micheal

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    check the cables (both ends) for corrosion. Is the battery losing voltage when it's hooked up?

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    This is without a doubt, a BCM (Body Control Module). Same exact shit happened to me summer of 2007.

    The fuses were all good and it did turn out to be a BCM. Just check your fuses first as a new one with labor cost me $700

    Let me know if you need more help

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    Try resetting the PCM, won't hurt.

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    Cables all good, cleaned up any corrosion, Im fearing a BCM also haha but resetting the PCM, hmmm any advice on how to do that?

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    PCM Reset

    Turn key on, don't start car
    Pull PCM BATT and PCM IGN fuses in engine compartment
    Wait 5-10 min
    Turn ignition off
    Replace fuses

    Worth a try.....

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    Might be the starter went out. You could check the connections at the starter to make sure they are good.

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    Senior Member Danger731's Avatar
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    Alternator going bad also does the same thing, Happend 3 times to me.
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    Quote Originally Posted by BIG GUNS View Post
    This is without a doubt, a BCM (Body Control Module). Same exact shit happened to me summer of 2007.

    The fuses were all good and it did turn out to be a BCM. Just check your fuses first as a new one with labor cost me $700

    Let me know if you need more help
    $700?? Damn...Thats unbelievable. Whats more unbelievable though is you paid it. You can get a BCM for less than $50 (more like $25 or so I think) and replace it yourself in like 20 minutes.

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    War Machine BIG GUNS's Avatar
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    Quote Originally Posted by squee View Post
    $700?? Damn...Thats unbelievable. Whats more unbelievable though is you paid it. You can get a BCM for less than $50 (more like $25 or so I think) and replace it yourself in like 20 minutes.
    Warranty picked it up. I'm not a fool......lol.

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    Quote Originally Posted by BIG GUNS View Post
    Warranty picked it up. I'm not a fool......lol.
    I didn't think so. lol

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    I've not messed with the BCM so I am not sure of all it does.

    If you weren't getting starter (solenoid) clicks when starting but did get them when reconnecting the battery. It sounds like the coil is staying on. That is pulling the battery down...and that wouldn't take too long.

    Now I seem to recall he BCM being related to the ignition and ignition-on functions. It would make sense...because solenoids need something closing the switch to them.

    Note to all, I'd like to crack a BCM open and see what kind of architecture is in there. Anyone have a bad one?

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    Ok Im back on this again haha, had to take a break for a lil while. I have read up on possible causes and it sure does appear that I have a BCM failure. I am trying to take it out to get it tested at stealership but cant seem to get it to release from under dash. I have the harnasses unplugged but the module wont slide out...any ideas? It looks like a computer hard drive but in a vertical position under and behind glove box. I pull an tug but I dont want to break anything.

    Evrything works fine on car, lights, interior lights, radio, power locks, power windows etc all fine, battery does not lose voltage and reads 12.7VDC. Just no gauges and no crank.

    Thanks a mill
    Last edited by Shamrox; 02-15-2009 at 09:47 AM.

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