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2015 2500 backup lights and mirror lights?

uchi

By uchi
in Modifications & Accessories

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uchi Enthusiast

uchi

Posted
Posted

hey fellas, i just upgraded from an 09 1500 5.3 to a 15 2500 duramax, still cant wipe the shit eating grin off my face the torque provides me, wife seems to like it to and drives the thing everytime she can, lol. ive got the towing mirrors with the led lights in them. im trying to get them to stay on when i put her into reverse. one thread said to turn them on while in park and then go into reverse but that seems to shut mine off. im guessing its an early 15 truck and not the 15.5 that ive read about. im trying to find the thread for it, one i came across was 19 pages long and after about page 9 i gave up on it. so the quick and easy, does someone know off hand what two wires i jump together to be able to turn these guys on with the truck in reverse? another thread was mentioning a diode, one said a wire jumper. then it got off topic about other stuff. basically just want to be able to turn them on and off with the factory cargo light button so i can back up my trailer into my dark driveway a little easier. thanks very much

uchi Enthusiast

uchi

Posted
  • Author
Posted

well i jammed a wire into the two slots from the post i linked above and she works. still debating if those leds are going to be too bright to have on as approach lights at night time or not. so i guess i answered my own question and with motivation and boredom did the mod myself, lol. does it matter what size diode i use for this mod?

pgamboa Senior Enthusiast

pgamboa

Posted
Posted

A diode only pushes power one way. So when installed like this photo, the cargo lights would come on anytime the reverse light is on but not the other way around. If you used a wire, they would come either way. When in reverse, Cargo comes on. When cargo comes on, reverse comes on.

 

f57936ea65827e1a48d3071a1712ed33.jpg

 

 

Sent from my iPhone using Tapatalk

newdude Senior Enthusiast

newdude

Posted
Posted

Check your upper glovebox for code AVF. If its there, then you have to hit the cargo lamp button and it will say "cargo lamps enabled". They should come on in reverse and shut off in drive on their own.

 

If you do not have code AVF, then you have to do the diode mod above and then you don't have to hit the cargo lamp switch, the diode mod lets them automatically come on in reverse.

 

I had to do the diode mod on mine (early 2015 HD) and it worked excellent.

uchi Enthusiast

uchi

Posted
  • Author
Posted

thanks fellas, im guessing mines an early because it kept shutting off on me when id go into reverse. do you guys know by chance if it matters what diode i use? id imagine all its doing is sending a signal to a relay to turn it on so really, the bigger the better in this case right? but really it shouldnt matter id imagine

newdude Senior Enthusiast

newdude

Posted
Posted

thanks fellas, im guessing mines an early because it kept shutting off on me when id go into reverse. do you guys know by chance if it matters what diode i use? id imagine all its doing is sending a signal to a relay to turn it on so really, the bigger the better in this case right? but really it shouldnt matter id imagine

 

One of the threads had the part number from Radio Shack 1N004 http://www.gm-trucks.com/forums/topic/164156-cargo-lights-on-with-reverse-lights/?p=1495649

Skeld Enthusiast

Skeld

Posted
Posted

Ok, so my cargo lights come on but to me it makes the mirror lights useless because of the glare from the cargo lights when I look through the back window in reverse. How can I disable the cargo lights but get my mirror lights to stay on in reverse?

uchi Enthusiast

uchi

Posted
  • Author
Posted

 

One of the threads had the part number from Radio Shack 1N004 http://www.gm-trucks.com/forums/topic/164156-cargo-lights-on-with-reverse-lights/?p=1495649

thanks, ill grab a pack of those. i finally had a chance to play with it at night time over the weekend. amazing. love the amount of light these give off while approaching and reversing the truck into a pitch black area. the only thing im not a fan of is the blinkers in the mirrors and how they seem to be aimed at my eyes on my side. my 09's towing mirrors were either pointed a bit further out or not as bright as these. aside from that, no complaints.

SMiller Senior Enthusiast

SMiller

Posted
Posted

'15.5 was first truck to get the LED lights in the mirror. Sorry that is all the help I have to offer...

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