Awesome!! Thank you. Im going to jump on that right now. Where did you find that info?
Interior lights always on
- Thread starter Skahide
- Start date
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He could tell ya but then he would have to kill ya! 
east302
Full Access Member
Alldatadiy.com subscription, it’s about $30/year per VIN.
It’s pretty close (usually identical) to the factory manuals. Scans for some years (including 98) are below...
https://www.gmt400.com/threads/88-95-service-manuals.43575/
eBay would be an option for printed manuals.
Do yourself a big favor and join ALLDATAdiy.com and have the info at your finger tips. You can do more than one vehicle as well. Costs more but is a year at a time plus the additional vehicles are less expensive for each one. east302 came thru for you.
Well, guys. I did check everything mentioned and didnt have any success. I got really frustrated and placed the Yukon on the "back burner".
Last week I went ahead and bought a new headlight switch assembly (since the other was from a junk yard). I installed it and now the interior lights (same ones as before) DONT come on UNLESS I turn the dimmer wheel all the way UP. The Override button changes nothing. Having the doors opened or closed does not change their functioning. Just out of curiosity i popped the old headlight switch in....and it works exactly as the new one.
Im so confused.
I have replaced both FRONT door switches. But i need to be sure the other switches are grounding properly? anything else to check?
Last week I went ahead and bought a new headlight switch assembly (since the other was from a junk yard). I installed it and now the interior lights (same ones as before) DONT come on UNLESS I turn the dimmer wheel all the way UP. The Override button changes nothing. Having the doors opened or closed does not change their functioning. Just out of curiosity i popped the old headlight switch in....and it works exactly as the new one.
Im so confused.
I have replaced both FRONT door switches. But i need to be sure the other switches are grounding properly? anything else to check?
GMJedi
Member
I’m having the exact same issue with my 97 Tahoe. I’ve pulled all the switches and disconnected them. Disconnected the h/l switch too. The only thing left in the system is the lamp control module. Ordered on per my vin from oem. Can not find it anywhere under the dash. So fuse is pulled. No interior lamps. No visor mirror lights. No power mirrors.
