Why did my oven light stop working after cleaning the oven?
The self cleaning cycle heats the oven up to 900-1000&deg;F so if it worked before it may be that some damage was caused during the cycle either to the socket or to the switch.  Try putting a multimeter on the socket to see if you have power, then click the switch and test again.  If there is no power during either test then it is probably the switch.