Bed light issue

SilverMachine · October 15, 2020

So I’m trying to wire some ledlights to light up my bed but the dummy plug under the truck has no power. Does anyone know what fuse might control that or does any know what might cause no power?

JimCost2014 · October 17, 2020

On 10/15/2020 at 11:55 AM, SilverMachine said:

So I’m trying to wire some ledlights to light up my bed but the dummy plug under the truck has no power. Does anyone know what fuse might control that or does any know what might cause no power?

Maybe try turning on the switch for the cargo lamp and see if there is any power to the plug with it on.

In the factory set up, that toggle switch controls both the cargo lamp in the 3rd brake light housing on the roof and the two LED's under the bed rails.

SilverMachine · October 17, 2020

That’s actually what has me worried because the third brake light bed lights work. With that switch on there is no power. When I first tested it, it did work but once I put the plug back on to test lights now no power. I was thinking fuse, maybe I tapped the power and ground by accident but I can’t find a blown fuse any where

JimCost2014 · October 17, 2020

On 10/15/2020 at 11:55 AM, SilverMachine said:

So I’m trying to wire some ledlights to light up my bed but the dummy plug under the truck has no power. Does anyone know what fuse might control that or does any know what might cause no power?

Passenger side fuse box, #10.

SilverMachine · October 17, 2020

15 minutes ago, JimCost2014 said:

Passenger side fuse box, #10.

Oh wow I did not realize there was another fuse box on the passenger side. ok. thanks Ill look tomorrow and give you an update

JimCost2014 · October 17, 2020

54 minutes ago, SilverMachine said:

Oh wow I did not realize there was another fuse box on the passenger side. ok. thanks Ill look tomorrow and give you an update

3 total in the truck.

Good luck!

SilverMachine · October 19, 2020

On 10/16/2020 at 11:31 PM, JimCost2014 said:

3 total in the truck.

Good luck!

#10 fuse is good. Third brake light Cargo light still works. Still can’t find a burnt fuse any where

indyplum · October 19, 2020

Not calling you wrong but are you trying the correct dummy plug ? I had the same problem and it turned out I was trying the wrong plug.The correct one that works for me is the one on the complete left side when facing the truck from the back. Hope this helps you also if needed the correct power lead is GM part # 23327843 on my receipt it is referred to as a F-HARNESS ( also called a tailgate wiring harness ????? ).

I hope this may help you.

SilverMachine · October 20, 2020

18 hours ago, indyplum said:

Not calling you wrong but are you trying the correct dummy plug ? I had the same problem and it turned out I was trying the wrong plug.The correct one that works for me is the one on the complete left side when facing the truck from the back. Hope this helps you also if needed the correct power lead is GM part # 23327843 on my receipt it is referred to as a F-HARNESS ( also called a tailgate wiring harness ????? ).

I hope this may help you.

Yes. That’s the one I am using. The lights worked at first but I was adjusting the wires and I might have tapped power and ground together. They do not turn on now. My third brake light bed light still works but the plug has no power now and I can not find a burned fuse any where