Cargo Light won’t work

Is the cargo fuse getting power on one side?

Which brown wire did you tap into?
The one from the relay to the light (probably runs thru the door threshold) or the one from the switch to the ECU?

I've searched my 2015 wiring diagram and can't find where the cargo relay is located.

Did you cut it or use a tap connector?
Is it possible you pulled too hard on it and pulled a wire pin out of a connector?
There ain't much slack in the OEM wiring..

 

This is what I’m thinking - loose connection or wire somewhere. Unfortunately need to start tracing where you are losing power in your wiring.

 

I tapped into the darker brown wire between the switch and ECU. The thing with pulling in the wire is I already had a wire run to the truck bed but I just got around to hooking try e bed lights into it. The cargo light worked till then so I didn’t really pull on anything. My fear is I have fried something in the ECU that is just for the cargo light

 

are you saying you tapped into the Brown wire in between the cargo light switch and the ECU (brown wire #10 in this diagram)? I think that is just part of the control circuit. I think you want to be tapped onto the #3 brown wire, in between the relay and the cargo light.

You said you have removed ALL of the wiring you added to the circuit? Have you tested the switch itself with a Continuity Tester? My gut tells me it’s something simple.

 

I keep telling myself it is something simple but I’m loosing hope. I bought a new switch thinking I did something to the switch but that didn’t change anything. I did wire into the brown wire going into the fuse junction box under the dash. I’m beginning to wonder if I blew something inside the fuse junction box.

 

do you have 12v at the switch?
Did you check the pins in the new switch? They seem pretty fragile, and easily bent.