Switched 12V in engine bay?

0210 · Jun 23, 2016

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RedBeard1 · Mar 1, 2016

The drop to 5v is due to the canbus electrical system on these trucks. Other than that I have no other useful information.

Lawfarin · Mar 2, 2016

Do you have a regular key or push button?

Joe23 · Mar 2, 2016

from my experience its usually safer to just add your own new one.

but on another note do you have any info on how you did it or what camera etc? I want to do the same

el_zorro1 · Mar 2, 2016

0210[OP] initial post: ↑

Anyone know of a switched 12V in the engine bay/under the hood of the 3rd gen? The brake reservoir's sensor is a switched 12V, but whenever I tap that for my front camera (which is also 12V), the circuit drops to 5V (tried three different grounds). Any other sources down there?

I had a look in the fuse box and nothing really stood out as being appropriate.
Click to expand...

Hi Man!...inside the fuse box behind the battery, I found a 10A (red) fuse, on the top side of the box labeled INJ , (above one labeled EFI NO3) near some relays. I am sure there are other circuits, but that worked for me when wiring my "raptor-style" LEDs.

Aussiek2000 · Mar 2, 2016

Do not try and use an existing circuit to power another device. You can use something as a trigger on a relay then run that to the device though

Joe23 · Mar 2, 2016

0210[OP] said: ↑

Are you looking to add a front dash camera (I have a G1WH camera already wired and running and can explain that), or a "front" camera (what I'm trying to do in this thread)? Possibly confusing terminology there. The front camera (non-dash) is for me to see the room between the truck and any obstacles, as I'm having a tough time gauging the distance (in underground parking lots and such) and don't want to hit anything. For this I'm using a Yoda backup camera that I used on my previous car. I've mounted it behind the front license plate (drilled a hole in the plate holder, and the plate itself).

I originally bent the metal bracket it came with and drilled the license plate frame:

Then I realized that this setup wouldn't clear the bumper, as the camera stuck-out past the "curve" of the frame (which normally sits flush on the bumper cover), so I took off the camera's original mounting hardware and smothered it in hot-glue; it's ugly, but this is all hidden and it's not going anywhere, and will now sit flush on the bumper as it did before.

This is the camera lens through the license-plate itself:

I left the opening rather rough as I suspect I'll need to make it larger to not interfere with the camera's wide-angle view. Will clean this up when I've wired/tested everything.

The camera's original display came in a large case that didn't fit where I wanted it mounted (sunglass holder), so I took all electronics out and mounted them on a custom piece of thin MDF, and then mounted & wired this along with my radar detector and front dash camera:

Sunglass holder opens/closes as before.

Thanks! I've never tapped a fuse before (seems like picking up "add a circuit" is the cleanest method), but I'll have a look at that one. I did poke around in the fuse box yesterday, but didn't spot anything that instantly stood out as being acceptable. Will have a look at the one you mentioned.

Right, relay is the other option. I've never actually used a relay, but figure I can use the 12V I've already tried as the on/off switch for the relay, and just connect the camera's power from the relay to the battery (via a fuse, of course).
Click to expand...

Ya I meant front facing camera to see stuff right up front when parking same reason as you, for undergrounds
Thanks dude great info, I'll look up that camera

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Switched 12V in engine bay?

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0210 [OP] Well-Known Member

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RedBeard1 Baby Ruuuuuth!

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Lawfarin Who me?

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Joe23 Canuckistikian

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Joe23 Canuckistikian

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Switched 12V in engine bay?

#1 0210 [OP] Well-Known Member

#2 RedBeard1 Baby Ruuuuuth!

#3 Lawfarin Who me?

#4 Joe23 Canuckistikian

#5 el_zorro1 Well-Known Member

#6 Aussiek2000 Well-Known Member

#7 Joe23 Canuckistikian

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#1
0210 [OP] Well-Known Member

#2
RedBeard1 Baby Ruuuuuth!

#3
Lawfarin Who me?

#4
Joe23 Canuckistikian

#5
el_zorro1 Well-Known Member

#6
Aussiek2000 Well-Known Member

#7
Joe23 Canuckistikian

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