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05-04-2010, 03:47 PM
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#1 (permalink) |
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Registered User
Join Date: Dec 2007
Member # 105400
Posts: 18
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04 silverado no power to brake controller???
Hello,
I'm usually pretty good at this stuff but this one has me stumped. I just got a prodigy controlloer and matching harness for my 04 silverado. Pluged in the harness to the box by the brake pedal( 2nd one from the left on the top row). Checked the fuse box under the hood added a 40a fuse to stud #1 and connected the charging wire. Made sure the 30a fuse was good for the controller side stud #2. And I have no power to the controller plug  What the hell am I missing? Is there anything else I have to hook up under the fuse box to make this thing work? I have brake signal at the plug just no power. If anyone has pictures on the under hood fuse box with the cover removed that might help because i may be missing some other plug. I can run this thing striaght but I got the harness so I would,nt have to. Thanks for any help, -Gary
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[SIZE="3"]Chrome don't get ya home:flipoff2:[/SIZE] Last edited by garyindiane; 05-04-2010 at 03:48 PM. |
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05-04-2010, 03:52 PM
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#2 (permalink) |
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Granite Guru
Join Date: Apr 2003
Member # 19168
Posts: 590
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Do the GMs also need a relay installed somewhere?
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Tow Rig: 1999 F350, 4x4, 6spd, Rickson 19.5s, Cummins 12V Trail Rig: 404 Rockmog, work in progress Current Project: M35 4x4 Pickup. 46" XLs |
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05-04-2010, 03:56 PM
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#3 (permalink) | |
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Registered User
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Quote:
Also read this. http://www.pirate4x4.com/tech/billav.../tech/Prodigy/ It was a very good write up but did'nt help -Gary
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[SIZE="3"]Chrome don't get ya home:flipoff2:[/SIZE] |
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05-04-2010, 06:06 PM
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#4 (permalink) |
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Wheeler
Join Date: Apr 2002
Member # 11016
Location: maine
Posts: 194
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I had an 06 in the shop recently that had a brake in the power wire between the under hood fuse box and and the junction block on the floor. Ended up running a new wire.
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66 Bronco 2006 HD2500 Duramax |
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05-04-2010, 07:47 PM
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#5 (permalink) |
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Registered User
Join Date: Jul 2001
Member # 5731
Location: Archer Lodge NC
Posts: 44
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be sure you have the correct wiring harness under the dash to the controller.
'99-'02 trucks are different then the '03 and newer. the plugs are the same, the wire pin out is slightly different, I forget the exact difference, I want to say the light blue ( brake trigger to controller) and the brown ( illumination of controller if equipped, usually unused ) wires are switched in the plug under the dash. Try turning the lights on and running the dimmer to max, see what you end up with. It was a stupid move on GM's part, very frustraiting when they first made the switch, before it was known. Last edited by Blkvoodoo; 05-04-2010 at 07:50 PM. |
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05-05-2010, 02:10 AM
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#6 (permalink) | |
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Registered User
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Quote:
-Gary
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05-05-2010, 02:54 PM
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#8 (permalink) |
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Registered User
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Well I ended up just running a power wire. It's working. One quick question.
Do I want the controlloer unswitched to power? That is the way I wired it to keep memory. Thanks again, -Gary
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