3rd base....
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| Wiring vintage pickup for electric trailer brakes http://bbnovaracing.com/forum/viewtopic.php?f=1&t=16928 |
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| Author: | Keith Seymore [ May Fri 08, 2009 7:27 am ] |
| Post subject: | Wiring vintage pickup for electric trailer brakes |
'87 Chevy "R" truck (same as an '86 C/K): Anybody know how to do that? I will be reusing my brake controller, which has seen a lot of use in newer (GMT800 and GMT900) style pickups, but have never done one this "vintage". Need to wire for a 7 pin round ("Airstream") style receptacle. Any advice would be appreciated. K |
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| Author: | RICK MILLER [ May Fri 08, 2009 8:07 am ] |
| Post subject: | |
Red=power White=ground Blue=to trailer Black=switch |
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| Author: | Keith Seymore [ May Fri 08, 2009 9:49 am ] |
| Post subject: | |
Ok - so to clarify: Blue - trailer brakes? Black - brake light switch? It's also become more clear to me that I'll have to pick up the controller wiring under the dash, but I could grab the tail/brake/turn circuits under the back of the truck (just like if I was doing a four pin flat connector). K |
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| Author: | RICK MILLER [ May Fri 08, 2009 10:20 am ] |
| Post subject: | |
Blue is for the trailer. It goes to position 2 in the connector. Hook the Black wire to the wire coming off the switch that is hot when the brake lights are on. |
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| Author: | Keith Seymore [ May Fri 08, 2009 11:06 am ] |
| Post subject: | |
RICK MILLER wrote: Blue is for the trailer. It goes to position 2 in the connector. Ok, got it - RICK MILLER wrote: Hook the Black wire to the wire coming off the switch that is hot when the brake lights are on.
Ok, and this one goes in position 4 in the connector? This is starting to make sense.... (I think) K |
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| Author: | bbnova [ May Fri 08, 2009 11:59 am ] |
| Post subject: | |
3rd base....
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| Author: | BT Race Cars [ May Fri 08, 2009 12:15 pm ] |
| Post subject: | |
They make a T connector that goes inline with the harness in the back its plug and play for the lights look on page 90 of your LMC catalog http://www.lmctruck.com/icatalog/cc/full.aspx?Page=90g. Also here is a link to some wiring diagrams for the 7 pin plugs http://www.etrailer.com/faq_wiring.aspx |
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| Author: | Keith Seymore [ May Fri 08, 2009 3:05 pm ] |
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Ok - we have a plan! I picked up the receptacle and the bracket here locally; the T connector is on order and already shipped. I'll let you know how this turns out once the parts arrive! 
K |
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| Author: | kireol [ May Fri 08, 2009 5:12 pm ] |
| Post subject: | |
220-221 whatever works |
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| Author: | BT Race Cars [ May Fri 08, 2009 8:35 pm ] |
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| Author: | Keith Seymore [ May Mon 11, 2009 11:37 am ] |
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kireol wrote: 220-221 whatever works
LOL. Another great quote from a "Michigan Automotive Engineer".
Geez - that movie was prophetic! |
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