A/C Selector Switch. 1997 Ford E-250 Econoline w/ AC;. 1998 Ford E-250 Econoline w/ AC;. 1999 Ford E-250 Econoline w/ AC;. 2000 Ford E-250 Econoline w/ AC;. Number of Switch Positions: 6. Copper alloy conductors ensure superior electrical conductivity with low resistive losses.