Blowing Fuse
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Racer
Joined: Mar 2013
Posts: 251
Likes: 9
From: Western Massachusetts
Blowing Fuse
My back-up camera is spliced into my back-up lights. This works quite well except I blew the fuse - 10 amp - in the fuse box under the passenger side carpet. Was told to replace with a 15 amp - blew that as well! Am I looking for trouble if I go higher than 15 amp? I am more annoyed about not having my camera and having to crawl under the dash than anything else! I have the same setup in my other car with no problem! Can I go higher than 15 amp OR should I just live with it! The 10 amp blew several weeks after the install - the 15 amp lasted several months.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,494
Likes: 3,999
From: Cape Coral, Florida
I myself wouldn’t go higher than 10 amps...that’s what that
back up light circuit was engineered for...how many amps does the back up camera draw ???...if you went higher the correct way would be to go with a heavier gauge wire on that whole circuit...see what’s all on that circuit...maybe convert your back up lights if they are incandescent to LED !!...they draw less current !!!
back up light circuit was engineered for...how many amps does the back up camera draw ???...if you went higher the correct way would be to go with a heavier gauge wire on that whole circuit...see what’s all on that circuit...maybe convert your back up lights if they are incandescent to LED !!...they draw less current !!!
Last edited by C5 Diag; Aug 21, 2018 at 06:09 AM.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Man, I bet ya that back up camera only draws 5 AMPS (if that).
Brother, YOU HAVE A SHORT CIRCUIT! That means it could turn into Smoke, fire, flames if you keep adding bigger fuses. Hell, just bridge the fuse with a finishing nail. That pesky fuse will never pop again!!!
You need to figure out where the positive and negative wire are having a party!!
Could be at the connection at the camera, somewhere the wires pass through the body, Positive wire to chassis ground (rub through) ect....
BC
Brother, YOU HAVE A SHORT CIRCUIT! That means it could turn into Smoke, fire, flames if you keep adding bigger fuses. Hell, just bridge the fuse with a finishing nail. That pesky fuse will never pop again!!!
You need to figure out where the positive and negative wire are having a party!!
Could be at the connection at the camera, somewhere the wires pass through the body, Positive wire to chassis ground (rub through) ect....
BC
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
If you are using 1157 OEM backup light bulbs they draw 4.2A (2.1A x 2) and your camera shouldn't be drawing more than 100mA (or no more than 500 or 600 mA if it has built-in LEDs for low light conditions). So, rounding off, your total current should be no more than 5A. You shouldn't increase the fuse.
Last edited by GCG; Aug 22, 2018 at 01:21 AM.
