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factory back up camera, with gmx550

jsilerjr

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jsilerjr Enthusiast

jsilerjr

Posted
Posted

I have a question on factory backup camera.

The camera works great ...put it in reserve and on it comes , I have the factory nave unit. I added a gmx550 to the truck to allowing using the screen to watch movies thru the I pod or a DVD player, It all works great .. This gmx550 also allows you to turn on the back up camera even if it isn't in reverse, but you have to connect a wire from the gmx 550 to the camera...OK here is the question. Does anyone know which wire the camera using to turn on the camera when it is put in reverse, this is the wire needed to connect to the gmx550 there are 5 wires coming out of the camera where it is mounted in the tail gate.. Just don't which one is which, I also think this wire connection can be made to the mbec under the dash

Thanks Jim

wottenad Enthusiast

wottenad

Posted
Posted

I have a question on factory backup camera.

The camera works great ...put it in reserve and on it comes , I have the factory nave unit. I added a gmx550 to the truck to allowing using the screen to watch movies thru the I pod or a DVD player, It all works great .. This gmx550 also allows you to turn on the back up camera even if it isn't in reverse, but you have to connect a wire from the gmx 550 to the camera...OK here is the question. Does anyone know which wire the camera using to turn on the camera when it is put in reverse, this is the wire needed to connect to the gmx550 there are 5 wires coming out of the camera where it is mounted in the tail gate.. Just don't which one is which, I also think this wire connection can be made to the mbec under the dash

Thanks Jim

 

 

If this is a NBS pickup, the reverse camera power lead is the dk. blue in the upper right pin (pin 8) of the upper right port in the left I/P junction block:

 

junction_block_left_IP_ACC_IGN_REV_GRND.jpg

 

Cut that wire and hook your camera output wire from the GMX-550 (orange/black, I believe) to the HARNESS side and cap off the stub of the wire that's coming from the plug.

jsilerjr Enthusiast

jsilerjr

Posted
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Hello Walt, Followed the above instructions, Camera still works in reverse, while in forward gear and you active the rear camera via the on -off of the gmx550 the screens goes black , no picture, turn it off on the gmx550 and goes comes back to whatever was on before, say nave screen, It also does come on in park using the on off of the gmx, just not when it is in forward, I wired to the harness cable side , not the plug side , is it possible this may need to be reversed?

jsilerjr Enthusiast

jsilerjr

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Walt..... I did check the voltage at the connector.... 12 v, Actually the system does work , but the camera only stays on for around 10 seconds then goes the screen goes blank, so start the vechile put it in reverse, camera comes on and stays on... shift to to drive, turn on the gmx550 and go to rear camera but , stwich it to on... Camera comes on , but only for around 10 secs. Not sure where to go from here. Any Help?

jsilerjr Enthusiast

jsilerjr

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Posted

well any one who is interested , I finally found the reverse wire for backup camera, everyone was saying it was the blue wire in the x10 connector of the MBEC, which is wrong ..that wire is for the backup lights... keep in mind this truck is a 2009 silverado with factory nave and back up camera....The wire that controls the 12 volts to the camera is a lt green wire in the BCM module located just to the left of the MBEC module. If any one is interested I can post pics of it.. Everything works fine now , I can shift to reverse and the camera comes on , then put it in drive and turn on the camera rolling down the road with the GMX 550, Ive been working on this for 4 weeks now glad to have it working

Blee Enthusiast

Blee

Posted
Posted

well any one who is interested , I finally found the reverse wire for backup camera, everyone was saying it was the blue wire in the x10 connector of the MBEC, which is wrong ..that wire is for the backup lights... keep in mind this truck is a 2009 silverado with factory nave and back up camera....The wire that controls the 12 volts to the camera is a lt green wire in the BCM module located just to the left of the MBEC module. If any one is interested I can post pics of it.. Everything works fine now , I can shift to reverse and the camera comes on , then put it in drive and turn on the camera rolling down the road with the GMX 550, Ive been working on this for 4 weeks now glad to have it working

 

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