F 250 4WD Super Duty V10-6.8L VIN S (2001)
Four Wheel Drive Selector Switch: Description and Operation
4x4 MODE SWITCH
Typical 4x4 Switch
The Generic Electronic Module (GEM) provides the PCM with an indication of 4x4L. This input is used to adjust the shift schedule. A 5.0 volt
module pull-up indicates 4x4H or 2WD (Figure 46).
