I removed a few screw's from the front of the stove and pulled the top cover off the burners. The igniter module was on the left, just under the cover. I swapped a few wires around to verify the fault was indeed the igniter module. Indeed it was. I put the stove back together.
The part number on the module didn't match anything online, but I found a site that said this module had been replaced with a similar part number. So that's the one I ordered. The new module arrived in 2 days. I took the stove apart, replaced the module, and put the stove back together.
All of my burners ignite now. The wife is so happy. My job is done.