I don't see any burnt traces or leaking caps. It looks like the white box is a relay. When you start to get into the surface mounted items, I'm not much help. Have you ruled out any wiring problems yet? Too bad you couldn't swap a known good one to see if the box is the offender. I have not had to deal with EPS problems yet and am not sure how much more help I can be. I think the output for the eps light is from the box so unplugging it will keep it off.