Gas range not lighting? This video shows you how to test if voltage is reaching the spark module.
Other commonly replaced parts for a gas oven not heating or baking properly:
Oven control board
Safety valve
Thermal fuse
All of the information provided in this part testing video is applicable to the following brands:
Frigidaire, GE, Jenn Air, Kenmore, KitchenAid, Magic Chef, Maytag, Thermador, Whirlpool