Disconnect the cable from the negative terminal of the battery. Remove the steering column covers. For the wiper/washer switch, pull it towards the passenger's side of the vehicle while pressing in on the pawls at the top and bottom, then remove the switch and disconnect the electrical connectors. Installation is the reverse of removal. Regarding the turn signal/headlight switch, also known as the combination switch, pull it outward towards the driver's side while pressing in on the pawl tabs at the top and bottom, then disconnect the electrical connector and remove the switch. Installation is the reverse of removal.