F 550 4WD Super Duty V8-7.3L DSL Turbo VIN F (2001)
Transmission Mode Switch: Description and Operation
Column-Shift Transmission Control Switch
Transmission Control Switch
The Transmission Control Switch signals the PCM with key power whenever the transmission control switch is pressed. On vehicles with this feature,
the Transmission Control Indicator Lamp (TCIL) (not shown) lights when the transmission control switch is cycled to disengage overdrive. The
operator of the vehicle controls the position of the transmission control switch.
