MAytag Gas Stove

Hello, we have a Maytag gas stove. The front 2 burners will not ignite(there is gas present just no spark) (the rear 2 burners work fine) and was told it was the ignition harness( around $200 repair quote). Looking at a diagram it shows an igniter, igniter switch, and spark module. Which of these would it possible be… any help is appreciated…Paul