Checking function of heating for rear window: Notes
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 Porsche Boxster, 2003 Porsche Boxster, 2002 Porsche Boxster, 2001 Porsche Boxster, and 2000 Porsche Boxster. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The function of the heating for the rear window (hardtop) can be checked with a temperature probe with digital display. The indicator light in the rocker switch also lights up if a fault is present and the heating wires in the rear window do not warm up.