New Whirlpool Gas Range Cook Top Ignitors Not Working

Whirlpool Gas Range Model #: SF385PEGN1.

Before repair:

Oven ignitor intermittent and two front cooktop ignitors don’t work. Rear cooktop ignitors work fine.

After repair:

Just bought and replaced oven ignitor and and two front top burner ignitors.

Oven working fine now.

However, now none of the top burners ignite. All can be lit manually. No clicking when knob turned to ignite for any of the four burners. Before replacement, all would click, even the defective front ones.

The new ignitors were removed replaced one at a time, so there is no wiring mixup, although the only difference appears to be the length of the wire anyway.

Stumped!

Any help appreciated.

Thanks,

Steven W. Winters

Can anyone suggest how to test the spark module?