VEHICLE DESCRIPTION: CLASS C MOTOR HOMES CONSTRUCTED ON CHEVY CHASSIS. THE ROUTING OF THE MAIN BATTERY FEED WIRING FROM THE COACH BATTERY TO THE DISTRIBUTION PANEL OF THE MOTOR HOME. THE COACH BATTERY IS NOT THE ENGINE BATTERY. THE COACH BATTERY PROVIDES SERVICE TO THE MOTOR HOME’S 12V APPLIANCES. THE ROUTING ALLOWS IT TO COME IN CONTACT WITH THE EXHAUST MANIFOLD OF THE VEHICLE, AND OVER TIME, THE HEAT OF THE MANIFOLD DEGRADES THE SHIELDING OF THE WIRE EXPOSING THE WIRE TO THE METAL MANIFOLD.