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  1. #1
    Member
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    Oct 2009
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    Corvette(s)
    1974 Stingray Coupe

    Default 1974 Power Windows

    Hey guys,

    Trouble shooting the power windows on my 74 vette...from my understanding, there is a 30 amp circut breaker and a power window relay in this system...i cannot locate where the circut breaker is!! Anybody know where it is typically found? Also, the new relay that i got only has 2 prongs, whereas the old one i took out had 3....the new switches have a center post that is way longer than the 2 other posts on the switch..what is going on here? can anyone offer any tips?

  2. #2
    Member 73shark's Avatar
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    Jun 2007
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    Corvette(s)
    1973 Orange Metallic L-82 Coupe

    Default

    Welcome to the CAC.

    I think the relay and breaker are under the console.
    Save the wave

  3. #3
    Member 6880 Mike's Avatar
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    2,664
    Corvette(s)
    1968 convertible; 1980 L-82

    Default

    Check the AIM. The circuit breaker may be mounted on the firewall under the hood. That's where it is on my '68. If memory serves, the PW relay is under the console.


  4. #4
    Member
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    Corvette(s)
    1974 Stingray Coupe

    Default

    thanks for the replies guys....i think i have determined that the circut breaker is indeed under the hood, on the firewall.....i think the relay under the console is bad, because there is power going in, but nothing coming out...its a tough part to replace, had to order it, no one had one locally, so we'll see what happens in a few days!

  5. #5
    New Member jdvann@roadrunner.com's Avatar
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    Corvette(s)
    1974

    Default

    Did the relay fix the problem? Where exactly is the relay located? Under the console by the emergency brake?

  6. #6
    Member petes74ttop's Avatar
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    Oct 2006
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    Mount Holly N.C.
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    Corvette(s)
    1974 T-Top

    Default

    The circuit breaker is on the fire wall near the master cylinder and the relay is under the center console.

  7. #7
    Member
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    Corvette(s)
    1974 Stingray Coupe

    Default

    yes, the relay was part of the problem; the other part being that there was no circut breaker under the hood!....after installing both the relay and circut breaker, my windows have worked without a problem.

    the relay is a real problem to get to, because you pretty much have to remove the whole center console to get to....terrible place to put it in my opinion!!

  8. #8
    New Member jdvann@roadrunner.com's Avatar
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    Corvette(s)
    1974

    Default

    Guess I will have to set aside some time this weekend, its starting to get warm here (Idaho).

  9. #9
    Member krscholz's Avatar
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    Oct 2008
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    Caldwell, ID
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    Corvette(s)
    75 Corvette Coupe, 383 Stroker

    Default

    Does anybody have a picture or better decription of where the circuit breaker exactly is?

  10. #10
    Member
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    Corvette(s)
    1974 Stingray Coupe

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    the circut breaker should be inboard of the power brake booster...it has 2 wires coming off two small posts...

  11. #11
    Member petes74ttop's Avatar
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    Corvette(s)
    1974 T-Top

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    On my 74 it's next to the emmissions sticker.

    Also, the power window relay gets 12 volts from the 25 Amp fuse that feeds 'ACC' terminal.

  12. #12
    Member krscholz's Avatar
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    Corvette(s)
    75 Corvette Coupe, 383 Stroker

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    Quote Originally Posted by jetset0045 View Post
    the circut breaker should be inboard of the power brake booster...it has 2 wires coming off two small posts...
    Oh, I see - is it the same for a 1975? If you are going to test the circuit breaker is it not wise to connect the wires together to see if the windows will work, or better, run a continuity test from each side of the terminal to see if the breaker is okay?

  13. #13
    Member krscholz's Avatar
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    Corvette(s)
    75 Corvette Coupe, 383 Stroker

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    Quote Originally Posted by krscholz View Post
    Oh, I see - is it the same for a 1975? If you are going to test the circuit breaker is it not wise to connect the wires together to see if the windows will work, or better, run a continuity test from each side of the terminal to see if the breaker is okay?
    I don't see it on the 1975 - could it have been eliminated.

  14. #14
    Member petes74ttop's Avatar
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    Corvette(s)
    1974 T-Top

    Default It's on the schemitic.


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