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how to wire up a trailer brake controller on 98 silverado?

This is a discussion on how to wire up a trailer brake controller on 98 silverado? within the Technical / Maintenance forums, part of the General Discussion category; i installed a trailer brake controller on my 98 silverado. everything works as long as i hit the button manually. ...

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    Registered User isenegger's Avatar
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    how to wire up a trailer brake controller on 98 silverado?


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    i installed a trailer brake controller on my 98 silverado. everything works as long as i hit the button manually. i cant find the correct wire to tap into to send a signal when the brakes are pressed. the wires on the brake switch are so so tiny and im affrad they will break if i try to splice. and i was told they run milliamps or something too. where do i connect the signal wire? thanks!
    2004 Tahoe Z71 Pat G tune
    1998 Silverado C3500 CCLB 2wd

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    Owner of all GM products 83Custom10's Avatar
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    Re: how to wire up a trailer brake controller on 98 silverado?

    ill take some pics of mine for you
    8.1L vortec 496ci big block avalanche with 6 inch lift 35 bfg mud terrians tuned .yea its quick an can haul almost anything click link to see my beast
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    Re: how to wire up a trailer brake controller on 98 silverado?


    not really a help but its how mines wired looks like the red wire was once connected to a small white wire that connectes to the brake switch. is yours hooked up to the fuse relay
    8.1L vortec 496ci big block avalanche with 6 inch lift 35 bfg mud terrians tuned .yea its quick an can haul almost anything click link to see my beast
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    Re: how to wire up a trailer brake controller on 98 silverado?

    is your wires coming from the conntroller itself look like these?
    8.1L vortec 496ci big block avalanche with 6 inch lift 35 bfg mud terrians tuned .yea its quick an can haul almost anything click link to see my beast
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    Owner of all GM products 83Custom10's Avatar
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    Re: how to wire up a trailer brake controller on 98 silverado?

    sorry bout the pics i was moving alot do to the horrible misqeetos(sp)
    8.1L vortec 496ci big block avalanche with 6 inch lift 35 bfg mud terrians tuned .yea its quick an can haul almost anything click link to see my beast
    http://www.facebook.com/photo.php?pi...&id=1586263916[

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    Re: how to wire up a trailer brake controller on 98 silverado?

    so is yours not hooked up anymore?
    2004 Tahoe Z71 Pat G tune
    1998 Silverado C3500 CCLB 2wd

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    Owner of all GM products 83Custom10's Avatar
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    Re: how to wire up a trailer brake controller on 98 silverado?

    i gess so i bought it like this but i had one in my last one and it was hooked up the same
    8.1L vortec 496ci big block avalanche with 6 inch lift 35 bfg mud terrians tuned .yea its quick an can haul almost anything click link to see my beast
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    Re: how to wire up a trailer brake controller on 98 silverado?

    take a test light and check the wires coming from the brake switch or run a wire from the tailight if ya want i alwyas tap off the brake switch wiring under the dash though when i install em
    04 Silverado

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    Re: how to wire up a trailer brake controller on 98 silverado?

    In the fuse box that is down by your left foot there is a hook up for your brakes. Take a 12 volt tester and touch the connectors one at a time while pushing the brake pedal with your hand. My truck is an OBS 99 Tahoe and it has this. If you need pictures just shoot me a message.

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    Re: how to wire up a trailer brake controller on 98 silverado?

    It's a small WHITE wire off the brake pedal electric switch harness, it's a PITA to get to on those...

    I used to install brake controllers as part of my old job for 5 years...

    Use a test light, check to see that it lights when the pedal is pressed...

    Be SURE it's the WHITE wire, there is another one that gets power when the brake pedal is pressed, but it is the trigger to cut the cruise control off, and will cause problems if you hook into that one...

    It's hard to explain, but the best way to get on this wire, is to find the harness connector DIRECTLY above the lower portion of the steering column shaft, if you can get it to release from its push in holder, you can pull a TON of slack down in the harness that has the white wire you need to get to...

    I'm tired and it's late, that's my best stab at helping you without being there to do it for you...

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    Re: how to wire up a trailer brake controller on 98 silverado?

    thanks guys....duggie do u have a pic?
    2004 Tahoe Z71 Pat G tune
    1998 Silverado C3500 CCLB 2wd

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    Re: how to wire up a trailer brake controller on 98 silverado?

    bump
    2004 Tahoe Z71 Pat G tune
    1998 Silverado C3500 CCLB 2wd

 

 

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