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Reverse lights stay on with backup cam plugged in...

Barman84

By Barman84
in Troubleshooting & Recalls

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Barman84 Enthusiast

Barman84

Posted
Posted

If I unplug my backup. CAm they work normally....

 

I plug it back in backup cam works just fine and reverse lights stay on 24/7 park, neutral and drive... I'm sure it's a short in the camera within but I can find a fray anywhere... and it all looks good.

 

If anyone has the wiring diagram fort r it that would be a HUGE help!

 

2014 1500 Silverado

Barman84 Enthusiast

Barman84

Posted
  • Author
Posted

hope this helps rear camera.pdf

 

It certainly helps in finding what wire goes where. Now I check specific grounds and fuses without ripping it all apart.

x219c Enthusiast

x219c

Posted
Posted

Is this a factory rear camera? And was any electrical work done relatively recently?

 

 

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Barman84 Enthusiast

Barman84

Posted
  • Author
Posted

It's a factory camera. That was installed with my upgraded HMI.

 

Everything was working just peachy until the last week and now the reverse lights stay on. Unplug the camera they shut off and operate like normal.

 

I took the camera apart wiring parts and everything looked good. So my next stop is the HMI box as it sends the signal to turn the camera on and interface with the reverse module.

 

The thin is if it was the HMI box I'd think the lights would stay on period with the camera plugged in or not. So I'm thinking it's the camera itself. Or possibly the BCM. I'm trying the free route first then I'll swing into a shop with the correct equipment to actually view what's going on.

 

But just like the HMI module I'd think if the bcm was. As the lights would stay on as well...

silveradosid Senior Enthusiast

silveradosid

Posted
Posted

reverse lights.pdfthis is interesting because the reverse lights and the camera get power from the reverse trailer light relay. that relay gets its signal from the bcm. the hmi is basically like a video card in a computer, it just decodes the camera signal into a picture on your display, so i dont think it is the hmi. the same wire that feeds both also goes to a ground and is also called a drain wire. the hmi reverse signal is lost when not in reverse which is why there is no picture, but the reverse lights should get drained by the camera as i can see by the wiring. i think the problem is the camera it self. here is a pdf of reverse lights and you will see they use the same wires

reverse lights.pdf

reverse lights.pdf

reverse lights.pdf

Barman84 Enthusiast

Barman84

Posted
  • Author
Posted

I have a friend with a 2014 high country that's coming over and is going to let me put his camera on my truck to see what happens.

 

I'm thinking the wires in the camera have a short of some sort I can't find.

  • 1 month later...
noleguy83 Enthusiast

noleguy83

Posted
Posted

I have a friend with a 2014 high country that's coming over and is going to let me put his camera on my truck to see what happens.

 

I'm thinking the wires in the camera have a short of some sort I can't find.

Any updates here. Having same problem

 

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Barman84 Enthusiast

Barman84

Posted
  • Author
Posted

Yes it was the camera. I went to my dealership local and compared it to he one they had in stock totally different wiring. Got a refund on the cheap crap and order a new one with a GM parts number that was about 20 more and works perfect.

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