After turning on the rear window heating, after a while the field with visible lines of conductors should be cleared of precipitation or snow.
1. If there is a problem, first check the fuse in the fuse box.
2. If the fuse is OK, check the connection of the cable plug on the left and right at the rear window. Remove corrosion if necessary.
3. If after that the rear window heating still does not work, check the electrical wires and the switch, as well as the relay, refer to Section Relay - general information.