F 250 4WD Super Duty V10-6.8L VIN Z CNG (2003)
General Module: Service and Repair
VEHICLE SECURITY MODULE
REMOVAL
1. NOTE: Prior to removal of the vehicle security module, it is necessary to upload module configuration information to a diagnostic tool. This
information needs to be downloaded into the new module once installed.
Disconnect the battery ground cable.
2. Remove the lower center dash trim panel.
3. Locate the vehicle security module on the dash panel behind the radio and heater controls and disconnect the vehicle security module electrical
connectors.
4. Remove the wiring harness retainer from the LH stud.
5. Remove the LH nut.