2004 Chevy Trailblazer EXT
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2004 Chevy Trailblazer EXT

  1. #1
    Bass Lake Dream'n "Flat" foot'n's Avatar
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    Question 2004 Chevy Trailblazer EXT

    I'm trying to get 12vlt power out of the 7-way plug. the blade at the 1 o'clock position should have constant power for battery charging in trailers.
    I have no power and can't find anything in the fuse panels or owners manual on how to do this. I had a 2002 2500 HD and it had power there.
    I checked the back of the plug, all the wires are in place, just can't follow them to the front of the vehicle.
    Any idea's....
    2halletts@gmail.com


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    Senior Member shan's Avatar
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    Quote Originally Posted by "Flat" foot'n View Post
    I'm trying to get 12vlt power out of the 7-way plug. the blade at the 1 o'clock position should have constant power for battery charging in trailers.
    I have no power and can't find anything in the fuse panels or owners manual on how to do this. I had a 2002 2500 HD and it had power there.
    I checked the back of the plug, all the wires are in place, just can't follow them to the front of the vehicle.
    Any idea's....
    Check the underhood fuse block. It may have a dummy or no fuse for that circuit. Edit: I checked the service manual - it's fuse 32, a 30A, in the underhood fuse panel. I don't recall on that year if it actually had a fuse installed when new.
    Last edited by shan; 05-16-2011 at 04:07 PM.
    Quote Originally Posted by Spike Morelli View Post
    Golfers and Fishermen are third rate bullshitters, compared to lots of hot boaters....

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    Bass Lake Dream'n "Flat" foot'n's Avatar
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    I think there is one in that slot, might be a dummy. I'll check it out, Thanks
    2halletts@gmail.com


    BLOWN GAS FLAT TO THE RAMP

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    Bass Lake Dream'n "Flat" foot'n's Avatar
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    You were right, slot 32 with a 30 amp fuse. All was there except the lead coming off the box to the harness. I found it taped up in the harness itself.
    Going to rig up a plug to charge my boat batteries while towing to the water. Hopefully no more low/dead battery surprises.
    2halletts@gmail.com


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  7. #5
    Senior Member shan's Avatar
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    I can't remember on that model year, but the wire for B+ back to the trailer connector may not be connected to anything and taped to the outside of another harness. I know we did that on the CK trucks. Seems like it was red and white (the ground wasn't connected either).
    Quote Originally Posted by Spike Morelli View Post
    Golfers and Fishermen are third rate bullshitters, compared to lots of hot boaters....

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