2007 Tahoe LTZ entry lights

[gvbhunt]

Odd issue here.  Yesterday the front doors (both of them) no longer activate the interior lighting.  The back doors do just fine.  I have checked the dummy switch on the dash and if it is disabled the back doors do not turn on the interior lighting but when it is turned back on the back doors will again turn on the interior lights.  I do not THINK that it is the door latches as the vehicle knows that the doors open, if you put it in drive and open the door the DIC tells you which door is open still AND when you turn the key off the radio plays until you open the drivers door so obviously something is still working.  I have tried resetting everything by leaving the battery unhooked for a few hours thinking a BCM reset would fix it but that did not do the trick.  Any ideas on what else to look at?

 

Thanks in advance!

[swathdiver]

Had the same issue, the culprit was the light bulbs in the headliner.  Pulled down the receptacle and cleaned the connections, put in new factory bulbs and all was well.

 

Have an IPhone?  Download Car Scanner App and use your OBDII adapter to pull up BCM codes.  Or use a Tech-2 or Snap-On.