Plarail talk n' action diesel 10 problem

Also i'm starting to think it could be part of the activation tab on the bottom of D10 Because when I discovered this issue it was sitting by my TnA Thomas (British Accent) For months and I hadn't been using it and no switches were left on at all. I'm just confused now because it had not been used meaning that the motor shouldn't be shot because it had not been over-used nor a circuitry problem. Muddy Poppins said the brail track mark reader (Activation Tab) Could be it.