Rear window defroster switch and contact status at various switch positions on models up to 1993
Rear defroster switch and contact status at various switch positions on models from 1994
The rear window defroster switch is located on the air conditioning and heating control panel.
1. Remove the ground wire from the battery.
2. Remove the air conditioning and heating control panel.
3. Remove the switch and disconnect from it an electric socket.
4. Using an ohmmeter, check the closure of the switch contacts depending on the position of the switch (see fig. The switch of a heater of back glass and a condition of contacts at various positions of the switch on models till 1993 and fig. Rear defroster switch and contact status at various switch positions on models from 1994).