I have the exact same problem with the large R/F burner of my 30”, four burner, GE Profile stove top, (different model # than yours, but I’m sure they’re similar). I also have all four electrode tips showing spark when any of the other three gas knobs are turned on, and have lit the large R/F burner by activating the auto ignitor with another knob while simultaneously turning on the R/F knob so it flows gas.

After removing all the drip pans and burner heads, I checked all the wires and individual electrode tips with an ohmmeter to check for continuity. I have deduced (in my case) that since all four ignitor tips show spark when any of the other three knobs are activated, that means that the central spark module is good and the fault lies with the R/F burner knob which isn’t sending a spark signal to the central module to route to the other burners. I also found that there is an individual spark activation switch at each of the 4 gas knobs (GE Part #WB24T10071). They are listed as a “Switch Gas VLV”.

I’m guessing that the R/F spark switch failed because my wife uses that burner more than the others.

Still in the process of figuring out how to gently lift off the glass stove top without ruining its adhesive seal to reveal the valves and right-side gas block so I can change the faulty spark switch which sits atop the R/F gas valve.

How would you replacethis harness, the same as replacing a gas valve ?