Need electrical help for backup camera install.
I'm in the process of connecting my backup camera. I tied into the reverse wire that sees 12 volts when the car is placed in reverse. The problem is, this wire is for some strange reason getting 2 volts as soon as I turn on the ignition. I even checked the voltage on the reverse bulb socket and got the same 2 volt reading with the igntion on and lights off.
I believe I could install a relay and make it work, but that's a PITA and overkill for this.
Suggestions welcome.
I believe I could install a relay and make it work, but that's a PITA and overkill for this.
Suggestions welcome.
Last edited by grip grip; Dec 22, 2012 at 07:14 PM.
The camera only cost $15, but it's the cat's meow.
less than $100, nice? Does it mount on the license plate frame? There are two black wires and one brown on the passanger reverse bulb socket. I got 11.2 volts on both wires.
Mine is a flush-mount camera. I drilled a hole in my license plate and mounted it behind.
Last edited by grip grip; Dec 22, 2012 at 01:30 AM.
I dont know why the 2 volts would be a concern, it is likely the test current to confirm the lamp has a good filament. It wont affect the electronics at that level. W
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HOLIDAY
CHRISTMAS
YIPPIE
HOLIDAY
CHRISTMAS
YIPPIE
The head unit sees the voltage, causing it to display the camera. The problem is it's doing it when the cars in other gears. Also, 2V is not enough to power the camera, so its displaying a blank screen.
Did you tap into both the power and ground wires on the reverse socket? I had a similar problem and found that I had a bad/weak ground. When I tapped the ground wire from the same socket, it worked fine afterwards.
If I had to do this I would use a 2 volt zener to block the voltage, this will drop the operating voltage by 2 volts also eliminating full power which could be an issue.
The simplest approach is to use a relay as your stand off, and then you would be able to get normal operation. The relay could be a small 12 volt single pole relay and you would not need any additional wiring. See my sketch below.

I have made a sketch of the relay, and a wiring diagram. When the relay sees about 8-10 volts it will PULL-IN and power the output pin C. Should do all you need, relay to be as small as you have, no current to speak of here.
HO HO Woody
The simplest approach is to use a relay as your stand off, and then you would be able to get normal operation. The relay could be a small 12 volt single pole relay and you would not need any additional wiring. See my sketch below.

I have made a sketch of the relay, and a wiring diagram. When the relay sees about 8-10 volts it will PULL-IN and power the output pin C. Should do all you need, relay to be as small as you have, no current to speak of here.
HO HO Woody
If I had to do this I would use a 2 volt zener to block the voltage, this will drop the operating voltage by 2 volts also eliminating full power which could be an issue.
The simplest approach is to use a relay as your stand off, and then you would be able to get normal operation. The relay could be a small 12 volt single pole relay and you would not need any additional wiring. See my sketch below.

I have made a sketch of the relay, and a wiring diagram. When the relay sees about 8-10 volts it will PULL-IN and power the output pin C. Should do all you need, relay to be as small as you have, no current to speak of here.
HO HO Woody
The simplest approach is to use a relay as your stand off, and then you would be able to get normal operation. The relay could be a small 12 volt single pole relay and you would not need any additional wiring. See my sketch below.

I have made a sketch of the relay, and a wiring diagram. When the relay sees about 8-10 volts it will PULL-IN and power the output pin C. Should do all you need, relay to be as small as you have, no current to speak of here.
HO HO Woody
That was it! Thank you very much and thanks to the other's that offered great suggestions as well.
This is a different camera.
2012-12-21_15-32-28_205_zpsc63e2098.jpg
2012-12-22_12-14-56_473_zpsea09b6ad.jpg
Last edited by grip grip; Dec 22, 2012 at 01:36 PM.
I guessed it was a different camera, $80 to $15. Cool.
What is the camera make?
Inquiring minds ......
What is the camera make?
Inquiring minds ......
My wife bought it for me off Amazon, so I'm not exactly sure what it cost. I belive it was around $15, but no more than $20-$25. Below is a link to a similar camera on ebay.
ES588MO 170 Degree Viewing 16 5mm Mini Color CMD Car Reverse Rear View Camera | eBay
ES588MO 170 Degree Viewing 16 5mm Mini Color CMD Car Reverse Rear View Camera | eBay
My wife bought it for me off Amazon, so I'm not exactly sure what it cost. I belive it was around $15, but no more than $20-$25. Below is a link to a similar camera on ebay.
ES588MO 170 Degree Viewing 16 5mm Mini Color CMD Car Reverse Rear View Camera | eBay
ES588MO 170 Degree Viewing 16 5mm Mini Color CMD Car Reverse Rear View Camera | eBay
That is a cool install....I may have to look into to doing that in the future...I was looking at the rear view mirror cameras and such.... Maybe my dashdaq will do this, lol.....



