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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Trailer and Towing Questions
195 messages, Last post on Nov 29, 2009 at 6:12 AM
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Replying to: 2007denali (Aug 29, 2007 11:40 am) |
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Replying to: 1offroader (Aug 26, 2007 2:22 pm) controller to the NBS GMT-900 trucks. It shows the interior blunt cut wires and where their hidden along with the 2 wires hidden under the hood that need to be hooked up............. http://www.gm-trucks.com/forums/index.php?showtopic=64063&hl=trailer+brake+contr- oller |
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Replying to: 1offroader (Aug 26, 2007 2:22 pm) I tried to duplicate making the truck battery go dead, couldn't do it. I left the controller installed and connected, and let the truck sit for 3 days just like before. No problem, truck started right up. I also checked the amperage that the controller draws while at rest, the specs say it should draw 15 mA, and it does. Everything seems to check out fine. I even had a friend who is extremely knowledgeable about electronics (he designs radar antennas for a living) check my wiring & etc. & he gave it a thumbs up. So.....I think what happened is that I left on a dome light, left a door partly open, or etc. & the battery drained. There appears to be no problem now, & I could not reproduce the original problem under the same conditions. However, I think I am going to install a good quality switch on the black/red hot wire under the hood located between the fuse box and fender. This is the power supply wire to the controller. When I'm not towing (98% of the time) I'll just turn the switch to 'off', that way there is no possible way for the controller to drain the battery. When I hook up the trailer I can just pop the hood open and turn on the switch to power the controller, and I'm ready to go. 1offroader
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Replying to: 1offroader (Sep 01, 2007 12:58 pm)
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Replying to: 01rado (Sep 03, 2007 5:41 am) No. Under the dash, the black/red truck wire goes to the Prodigy black wire (hot). The light blue/white truck wire goes to the red Prodigy wire (brake light). The dk. blue to dk. blue (trailer brakes), and white to white (ground). Under the hood, I connected the 2 black/red wires to their respective posts on the fuse box, and installed a 40A fuse in slot 70 in the fuse box. That's all there needs to be done. 1offroader
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Replying to: 1offroader (Sep 03, 2007 7:59 am) |
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I have a brand new 2500HD Silverado with 700 miles on it. It uses a factory trailer braking system, which is new to me. When pulling my toy hauler, and applying the brake, the engine races and the RPMs go up to about 2000 to 2500 as the vehicle is slowing down. I am not sure why this is happening nor am I sure what I may do to eliminate this from happening as it seems that the engine should not race as the vehicle slows. Can anybody provide any guidance e.g., is the gain set too high, too low, something else? The dealer says don't worry.
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Replying to: 2007hd (Sep 23, 2007 4:54 am)
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Replying to: davethecarnut (Oct 02, 2007 9:14 pm)
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Replying to: 2007hd (Oct 06, 2007 8:44 am) This is intended as a trailer braking aide, not to be confused with a brake controler. |
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