Painfully new here...bear with me please.

[AmberBeauTahoe]

Ok yall. I just bought a 98 Tahoe and none of my dome lights work. All of the door lights work when you open every door so it doesn't seem to be a switch. All of the fuses are good. The dome override button is NOT pushed in, and the dimmer knob works for the dash lights and even the lights on the rear ac control panel. The only lights that won't come on are the map and dome lights and it's drivin me nuts. It seems to be a loose wire or somethin ridiculously simple. I've currently got my headliner out having it redone and was wondering if anyone has encountered/fixed this issue and would be able to MAYBE point me right where I need to go so I don't end up frustrated and wading through a jungle of wires by noon. Thanks yall!

 

[Tonyrodz]

Ok yall. I just bought a 98 Tahoe and none of my dome lights work. All of the door lights work when you open every door so it doesn't seem to be a switch. All of the fuses are good. The dome override button is NOT pushed in, and the dimmer knob works for the dash lights and even the lights on the rear ac control panel. The only lights that won't come on are the map and dome lights and it's drivin me nuts. It seems to be a loose wire or somethin ridiculously simple. I've currently got my headliner out having it redone and was wondering if anyone has encountered/fixed this issue and would be able to MAYBE point me right where I need to go so I don't end up frustrated and wading through a jungle of wires by noon. Thanks yall!

Welcome. While the headliner is down, do you see any loose wires up there? How's the ground for those lights?

 

[swathdiver]

Are you able to test the dome light override button or the wires on it? That's where I'd start.

 

[PG01]

I think @east302 has wiring diagrams and flow charts....welcome btw

 

[AmberBeauTahoe]

Welcome. While the headliner is down, do you see any loose wires up there? How's the ground for those lights?

No loose wires, everything is clean and in it's place like it rolled off the line yesterday. My dad was helping me troubleshoot the other day and stuck the very back dome ligh with an oem reader and it's not got power. I've about concluded that there's 2 wires I need to pull out and look for cuts or burns, starting from the back. The previous owner said one day the dome and map lights just stopped working but he never investigated it.

 

[AmberBeauTahoe]

Are you able to test the dome light override button or the wires on it? That's where I'd start.

I guess I haven't looked into that extensively cause that whole area functions properly. Seems like if somethin was goin out it'd affect the general area as well. Unless the wires that are only for the map/dome lights are grounded back there?

 

[AmberBeauTahoe]

I think @east302 has wiring diagrams and flow charts....welcome btw

Those would be nice to look at! I've tried googling for some but for some reason information on 98 Tahoes seem so choppy.

 

[AmberBeauTahoe]

And thank all yall for the welcomes

 

[ScottyBoy]

The 95-99 Tahoes, Yukons, and Burbans were notorious for the door switches going bad. It's basically a plastic button on the side of the dash. The driver's pin switch had two trigger wires on it if I remember right. I used to wanna pull my hair out installing alarms in a 95-99 with bad pin switches. Even one bad switch can cause everything to go haywire. I'm not saying that this is the cause of your issue, but I would sure as hell investigate it. They not only go bad, but they can come loose or get pushed back into the dash a bit and then they won't fully touch the door and that causes them to not work properly. Another thing, there is a round plastic "button" on each door panel where it touches the pin switch. If that falls off the door panel, then the dome light will not work. If you have a small hole in the door panel, then the button had fallen off.

 

[Cattivo]

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My trucks previous owner was a complete butcher, he hacked up 90% of the wiring...these 2 voltage testers will make your life a lot easier to trouble shoot anything electrical