Disconnect the negative (-) battery terminal.

Using a screwdriver or remover, remove the center fascia garnish (A).

Disconnect 3 connectors. (A/C switch, Hazard switch and defroster switch) - General

Disconnect 3 connectors. (Front deicer switch, Hazard switch, Rear defroster switch) - Russia

Using an ohmmeter, inspect the continuity between the terminals.