F 450 4WD Super Duty V10-6.8L VIN D (2004)
Transmission Mode Switch: Description and Operation
TRANSMISSION CONTROL SWITCH
Transmission Control Switch (TCS)
Transmission Control Switch (TCS)
The transmission control switch (TCS) (Figure 50) and (Figure 51) signals the PCM with keypower whenever the TCS is pressed. On vehicles with this
feature, the transmission control indicator lamp (TCIL) lights when the TCS is cycled to disengage overdrive. The operator of the vehicle controls the
position of the TCS.
