Dome/Courtesy Lights

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SgtPreston

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The dome lights in my '94 Yukon worked at one time but quit some time ago - I think they are linked by a common ground wire but I can't find where the wire runs to see if there is a break. The under dash courtesy lights work fine. Any help would be appreciated.
 

Hoesgottaeat2

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In which ways have you determined that they are not working?
By opening the doors?
By using the dimmer switch?
 
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SgtPreston

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In which ways have you determined that they are not working?
By opening the doors?
By using the dimmer switch?
Tried both and also opened tailgate . Have checked bulbs also and have 12V but no ground - aren't all the courtesy lights on common ground?
I'm trying to find the wire for the dome lights without tearing the headliner out.
 

Hoesgottaeat2

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Tried both and also opened tailgate . Have checked bulbs also and have 12V but no ground - aren't all the courtesy lights on common ground?
I'm trying to find the wire for the dome lights without tearing the headliner out.
I haven't looked personally at this but is there any way you can try running a jumper from the bulb socket to a known good ground? Just to verify it is indeed a bad ground or not?
 

YukonGTmaster

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I had issues with my dome lights. It ended up being an unserviceable "Override" button at the headlight switch assembly.
 

east302

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From the 94 manual. The PDF set can be downloaded here:


352EBD5F-F557-47AA-8AB0-A04804974475.jpeg
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7E401C74-2A9F-4993-8D10-E9B055676796.jpeg
0F2A853B-44C1-4512-987A-557FD8135FFD.jpeg
 
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SgtPreston

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From the 94 manual. The PDF set can be downloaded here:


View attachment 389327
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Thanks, I'm not sure these apply as my 94 Yukon 2 dr. doesn't have an o/h console but I'll go through the other Adobe files you provided - it seems like I need the wiring diagram for the O/H lights and a cutaway view of the wiring location in the roof, possibly from a shop manual?
 

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