Accelerator Pedal problems of the 2005 Subaru Outback

The contact owns a 2005 Subaru Outback. The contact stated while driving downhill at 40 mph, the check engine warning light was illuminated. The accelerator pedal was depressed however, the vehicle failed to respond. The contact parked on the side of the road and restarted the vehicle after 3-4 minutes and continued driving to his destination. The contact stated that the check engine warning light turned off after restarting the vehicle. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 215,500.