it is my understanding that there is a "Generic Electronic Module" that has wires going to each of the door components. In particular the blk/yel goes to the LEFT door/ajar switch, the blk/pnk the RIGHT, blk/wht sliding, and blk//LT Blu TAILGATE.
It seems to me that if one were to ground out each of the wires, and if the interior lights went out, or the chiming stopped, that would point to which door switch is malfunctioning.
Where is the "Generic Electronic Module" located? | 
