A control device suitable for use in a vehicle (such as, for example, for a glow plug of a vehicle) includes an electrically conductive element having a first end in electrical connection with a first solder joint and a second end in electrical connection with a second solder joint. A center region of the electrically conductive element is in electrical connection with a vehicle power source. When a temperature at the first solder joint exceeds a threshold temperature and a temperature at the second solder joint is below the threshold temperature, electrical connection at the first solder joint is broken and electrical connection at the second solder joint is not broken.