Yup several times. There is nothing labeled as a BIM. Closest thing in the diagrams is Aux Start Solenoid which is technically the same function (except dumber). In reality, I believe the Aux Start Solenoid is the DC Contactor and it is in the battery bay where you'd expect a BIM.Have you looked at the wiring diagrams for the Intent 26M?
https://winnebago.com/Files/Files/Winnebago/Resources/Diagram/2018/18_v26m_wire.htm