Loose Red Wire Driver Side Wheel Well

[YukonCrazy]

I was changing brakes and noticed this red wire dangling that is not connected to anything but should be. Any idea where this connects to?

Looking down under under the hood....

Looking from drier side wheel well...

 

[NGAneer]

I've got the same wire but it's taped up. Not sure what its for but being that it was crusty when I got the truck, I just left it unhooked. I'm guessing it's aux power for something.

 

[YukonCrazy]

Oh I see. Maybe I will just tape it up to the bundle.

 

[05Single]

Oh I see. Maybe I will just tape it up to the bundle.

That's a wise choice my friend!

 

[kbuskill]

See post below...

 

[kbuskill]

I was changing brakes and noticed this red wire dangling that is not connected to anything but should be. Any idea where this connects to?

Looking down under under the hood....

Looking from drier side wheel well...

I've got the same wire but it's taped up. Not sure what its for but being that it was crusty when I got the truck, I just left it unhooked. I'm guessing it's aux power for something.

That's a wise choice my friend!

That is one of the wires that gets hooked up to one of the two studs on the front of your fuse box under the hood to give power to your 7 pin trailer connector and your brake controller wiring that is located under the drivers side of the dash. There should be a second red wire bundled with tape in front of the fuse box. They have different size lug terminals on them that correspond to the different sized studs that I mentioned earlier.

 

[NGAneer]

That is one of the wires that gets hooked up to one of the two studs on the front of your fuse box under the hood to give power to your 7 pin trailer connector and your brake controller wiring that is located under the drivers side of the dash. There should be a second red wire bundled with tape in front of the fuse box. They have different size lug terminals on them that correspond to the different sized studs that I mentioned earlier.

Good to know. Appreciate it.

 

[05Single]

I had no idea, my comment was just trying to make a funny about his avatar. Nobody got it tho

 

[HiHoeSilver]

I had no idea, my comment was just trying to make a funny about his avatar. Nobody got it tho

This is serious business here.

 

[PG01]

That is one of the wires that gets hooked up to one of the two studs on the front of your fuse box under the hood to give power to your 7 pin trailer connector and your brake controller wiring that is located under the drivers side of the dash. There should be a second red wire bundled with tape in front of the fuse box. They have different size lug terminals on them that correspond to the different sized studs that I mentioned earlier.

X2

 

[AppocAlexx]

7 way hookup for brake controller.

 

[05Single]

This is serious business here.

So it seems.

 

[M3kanic]

So both of these are power?

I am about to put a brake controller in mine.

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[kbuskill]

So both of these are power?

I am about to put a brake controller in mine.

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Yes 1 provides power to the 7 pin trailer plug at the rear of the truck. This provides 12V+ to the trailer for things like keeping the battery for the break away switch charged, in case your not familiar with the break away switch it is a pull pin that is attached to a cable that hooks to your truck, in the event that your trailer came loose it would pull this pin and the break away switch will provide power from the battery located on the trailer to the trailer brakes to stop the trailer.

The second wire provides power to the wiring under the dash for the trailer brake controller.

The wires under the dash for the brake controller are as follows if you care.

Light Blue/White-- FEED FROM THE BRAKE LIGHT SWITCH
Red/Black-- FROM STUD 2 FUSE 36 (30A) FUSE PANEL UNDER THE HOOD
Dark Blue--TO TRAILER CONNECTOR(BRAKES ON TRAILER)
White --GROUND

 

[M3kanic]

I just wanted to make sure. My 02 suburban was plug and play and I would have been quite upset if I wired up the brake controller and nothing happened.

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[PG01]

But, if you leave your trailer plugged into the truck and truck not running and use lights and accessories in your trailer, you will kill both batteries, in the trailer and in the truck, so either leave truck running or disconnect trailer.

 

[M3kanic]

Yeah, we have a friend do that last year while camping. But luckily I always keep jumper cables with me.

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[M3kanic]

Just ordered everything I need from etrailer.

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[Floep]

The ones in the fender well are both Red and taped. They are feed wires for the block heater accessory, someone has cut them, maybe because they did not use it in their climate. Follow them an you will find they go to the engine block .

 

[PG01]

The ones in the fender well are both Red and taped. They are feed wires for the block heater accessory, someone has cut them, maybe because they did not use it in their climate. Follow them an you will find they go to the engine block .

Nope.... for trailer wiring