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installing backup camera. Where to ground? #4785693
06/13/18 09:50 AM
06/13/18 09:50 AM
Joined: Nov 2009
Posts: 4,975
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP
Joined: Nov 2009
Posts: 4,975
Houston, Texas
I'm tapping the reverse light wire to get 12v power, but also notice their is another wire coming out of the light that is solid black. Can I tap into that wire and use it for a ground?

Last edited by motor_oil_madman; 06/13/18 09:50 AM.

2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: installing backup camera. Where to ground? [Re: motor_oil_madman] #4785717
06/13/18 10:16 AM
06/13/18 10:16 AM
Joined: Oct 2012
Posts: 2,466
Staten Island, NY
michaelluscher Offline
michaelluscher  Offline
Joined: Oct 2012
Posts: 2,466
Staten Island, NY
I wouldn't

Use a known good/create your own ground

Don't add another variable to troubleshoot


'06 Toyota Camry SE V6 3MZ-FE 100k
'01 Mercury Villager Estate VG33E 52k
'06 Ford Taurus SE Vulcan 60k
'13 Chrysler 300 3.6 Pentastar 230k
Re: installing backup camera. Where to ground? [Re: motor_oil_madman] #4785766
06/13/18 11:10 AM
06/13/18 11:10 AM
Joined: Nov 2008
Posts: 12,682
NH
supton Offline
supton  Offline
Joined: Nov 2008
Posts: 12,682
NH
If you don't know where it goes then I wouldn't.


2011 Toyota Camry, base, 2.5L/6MT, 169k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 144k, ours
1999 Toyota Camry LE, 2.2L/4AT, 192k, his
Re: installing backup camera. Where to ground? [Re: motor_oil_madman] #4785788
06/13/18 11:27 AM
06/13/18 11:27 AM
Joined: May 2009
Posts: 12,243
N.H, U.S.A.
ARCOgraphite Online content
ARCOgraphite  Online Content
Joined: May 2009
Posts: 12,243
N.H, U.S.A.
Body. Scratch off some paint add sheetmetal screw and washer and finish with permatex red. Or alternatively under a screw honding something else down that's through the sheet metal. That's all.

The Body is at GND.

Last edited by ARCOgraphite; 06/13/18 11:29 AM.

2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: installing backup camera. Where to ground? [Re: motor_oil_madman] #4785793
06/13/18 11:33 AM
06/13/18 11:33 AM
Joined: Jan 2013
Posts: 1,920
Texas
WyrTwister Offline
WyrTwister  Offline
Joined: Jan 2013
Posts: 1,920
Texas
Even better , the frame .


Wyr
God bless
Re: installing backup camera. Where to ground? [Re: motor_oil_madman] #4785841
06/13/18 12:24 PM
06/13/18 12:24 PM
Joined: Nov 2008
Posts: 3,180
Oshawa, Ontario Canada
JC1 Online content
JC1  Online Content
Joined: Nov 2008
Posts: 3,180
Oshawa, Ontario Canada
I used an existing nut on my caravan hatch for the ground. If one doesn't exist add one that will stay dry.


2015 Grand Caravan SXT Plus 5w-20 PPPP/Fram Ultra Filter
1997 Honda Civic CX 5w-30 Shell Conventional/Fram Ultra Filter
Re: installing backup camera. Where to ground? [Re: motor_oil_madman] #4785865
06/13/18 12:46 PM
06/13/18 12:46 PM
Joined: Nov 2009
Posts: 4,975
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP
Joined: Nov 2009
Posts: 4,975
Houston, Texas
How about the bumper behind the license plate?


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: installing backup camera. Where to ground? [Re: motor_oil_madman] #4785907
06/13/18 01:30 PM
06/13/18 01:30 PM
Joined: May 2013
Posts: 2,093
Saskatchewan, Canada
Johnny2Bad Offline
Johnny2Bad  Offline
Joined: May 2013
Posts: 2,093
Saskatchewan, Canada
Originally Posted By: motor_oil_madman
How about the bumper behind the license plate?


Might work but often bumpers are isolated from the vehicle ground due to safety provisions (foam, rubber bushings, etc). But there will be a good ground at your license plate lamp.

A good ground is essential in automotive systems. You can always run a wire from your camera to any convenient point that you know is part of the frame or chassis. Remember in a car current flows from negative (ground) to positive, so the ground is a critical part of any electrical connection.


'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]
Re: installing backup camera. Where to ground? [Re: motor_oil_madman] #4786034
06/13/18 04:40 PM
06/13/18 04:40 PM
Joined: Dec 2014
Posts: 634
Toronto
dgunay Offline
dgunay  Offline
Joined: Dec 2014
Posts: 634
Toronto
Originally Posted By: motor_oil_madman
I'm tapping the reverse light wire to get 12v power, but also notice their is another wire coming out of the light that is solid black. Can I tap into that wire and use it for a ground?


Tap that solid black cable to reverse light ground wire. So it only works when you back the car up.


2009 Acura CSX - PUP 0w20 / Fram XG7317 / Maxlife ATF
2018 Kawasaki Z650 - Motul 4T 5100 10w40 / OEM Oil Filter

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