2001 GMC Yukon XL (Aka Beast)

[Fless]

What diagnostic trouble code(s) are lighting the lights?

 

[makintoshnex]

I ordered another harness. It may be that my GMC is using same harness as for the left and right side. I tried to switch them they fit. The tiny thumb on right harness is same as for the left one. I found cheap one new from 2000 GMC Sierra 2500 for 35 bucks. We'll see. So far left turn signal doesn't work. I swapped old taillight back. I tried to fit the new wing from Escalade. Did some custom brackets. Need to wire it.

 

[makintoshnex]

The biggest issue is that I'm doing everything on a street. I have no garage or driveway. Those holes for spoiler I will fill in with window seal . I can't weld plastic, got no tools for that.

 

[Bigburb3500]

The biggest issue is that I'm doing everything on a street. I have no garage or driveway. Those holes for spoiler I will fill in with window seal . I can't weld plastic, got no tools for that.

I feel you on the street work. Did all my work in a parking lot or at the local AutoZone.

 

[makintoshnex]

Alright fellas. I did wherever I could. Now I need you assistance. I need to wire the lights. I have no problem with reverse light. That one I did. I can't do anything to brake light, running light, turn signals. Actually I can. But they keep working, especially running light even when engine is off and ignition is off too. I need somehow bring 12 volts to th back that will automatically shut down when vehicle is on alarm. I bought these taillight, they have same harness as mine. So no problem. Just one thing, power. On order to activate power in spoiler I need 12 v constant.

 

[makintoshnex]

Ok. So that's what I ayeballed. I wired it to the numberplate light. And I replaced factory ones into these. So far not bad. This is simply running light. It's COB . Also I wired reverse light in pillars, unfortunately I didn't manage to obtain same light for them. I had in a household proven with time old LED, I used them at work. So I had to go with that. And also my wife gave an ultimatum, so either spoiler and those pillars are out or she will get rid of a truck. I live in apartment it's small 1 bedroom with 2 kids, you know. I had to take it. And by the way I haven't installed spoiler permanently, it's holding on one screw and 2 makeshift brackets.

 

[makintoshnex]

I played I bit with my fuse box and after abs light flickered agaIin got these codes

 

[makintoshnex]

I finally fixed exhaust leak, now it's not farting, it's decent sound, before I thought about changing the resonator, but now I think I will keep it stock. It's loud enough