I have a toro Proline 48” walk behind mower. It’s the pistol grip operating system. The safety kill system doesn’t work and I have a red and a black wire that attach to nothing. I’ve researched diagrams all over the internet and I can’t figure out what needs to be done to reconnect the wires and make the safety system work correctly. Both wires come from the module under the gas tank. Anyone got any experience with this issue? Thanks!