What was found
THE LT OVER-WING EXIT LIGHT ILLUMINATED DURING TAKE-OFF AT 15 KTS. REJECTED TAKE-OFF AND RETURNED TO GATE. VERIFIED THAT THE LT OVER-WING EXIT DOOR WAS CLOSED AND LOCKED. CONFORMED WITH PSEU BITE CHECK, NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE. ETOPS FLIGHT 475, OAK-LIH CONTINUED: LT OVER-WING EXIT DOOR LIGHT ILLUMINATED ENROUTE. REMOVED AND REPLACED FLIGHT LOCK RELAY R742 IAW FIM 52-20-00-810-807. VERIFICATION FLIGHT CHECKS OK. AIRCRAFT OK FOR CONTINUED SERVICE.