I have a 6BRU18 and it has gotten to the point that it will not move more than a few feet without throwing code 61. A service man from the Toyota forklift dealer couldn't figure it out and wanted me to bring it into the service center but I am unwilling to do so because if they cant fix it on site then what makes me confident they can fix it at all. After reading your post I checked the 4 large lead plug and all seems good. Do you have any other suggestions?