Ford & Mercury

Disconnect battery ground cable. Remove windshield wiper switch knob. Pull headlight switch knob out to "ON" position. From under instrument panel press and release button on switch housing and pull knob and shaft from switch. Remove bezel nut from switch. Remove lower finish panel attaching screws. Pull out on bottom of finish panel and remove switch plate to panel mounting screws. Disconnect switch wiring harness and disconnect illumination light from harness. Disconnect vacuum hoses to switch (if equipped). Remove light switch from mounting plate. To install, reverse removal procedure.