hello i have a kenmore gas range model # 66575022101. the top burners will not come on, i have replaced top burner safety shelinod valve with a known good one , no change. the spark module seems to be ok as it sparks when in lite position, but no current seems to be going from spark module to the top burner safety sheinod valve to keep it open. when you unplug power to unit and plug back the safety shelinod valve opens for a second then closes ,i assume when the front control knobs are turned to lite they send a signal to the spark module so their is spark and the module opens the valve so gas can go to the top burners, is their another switch or control that i am missing? thanks for any help . sid