Previous problems I have reported were caused by chipmunks chewing on my wiring. They also like the foam cover over the motor and controller in the front motor compartment. I found two building a nest under the controller, etc. Mothballs didn't seem to help much. I paid a Ford dealership to wrap my exposed wiring with tape sold by Honda for that purpose. It contains capsicum (hot pepper ingredient). Rodents chewing on wiring insulation appears to be a widespread problem for many car makes.