1991 Ford Explorer Fan Speed Switch

CONTROL PANEL
Disconnect negative battery cable. Remove ashtray, ashtray retainer and illumination bulb. On 4WD vehicles, disconnect 4WD transfer switch wiring from finish panel. On all models, gently pull out finish panel from instrument panel.
Remove 4 screws attaching control panel assembly to instrument cluster. Pull control panel assembly through instrument panel assembly. Remove electrical connections from blower switch and illumination light.
Remove vacuum hose harness connector from vacuum switch on control panel. Release temperature and function cable snap-in flags from White control bracket. See Fig. 1 .
Remove temperature control cable (Black cable with Blue snap-in flag) from control panel by rotating cable until "T" pin releases cable. Pull enough cable through instrument panel until function cable (White cable with Black snap-in flag) can be held vertical to control panel.
Remove control cable from function lever. Remove control panel assembly from instrument panel. To install, reverse removal procedure.
Fig. 1: Exploded View of Heater Control Assembly