Oven and broiler won't light

I have a Kitchenaid KGSS907SBL01 gas stove/oven and the oven will not light. I cannot see any spark or glow from the igniters. I did replace the lower (bake) igniter but it did not solve the problem. The impedance on the gas valve is 195 on one side and 204 on the other however I understand it should be around 216. Are these readings within the tolerances? What can I try to troubleshoot next?

thank you in advance.

Jim