FixVault

External Controls: Overview

External Controls - Component Location 

Transmission Gear Shift Module (GSM) 

GFD839820Courtesy of FORD MOTOR COMPANY
Item Description
1 GSM
2 Rotary dial
3 Rotary dial gear display
4 Low range selection button
5 GSM retaining screws (3)


External Controls - Overview 

Overview 

The shift by wire system uses a rotary dial mounted on top of the GSM to command the Secondary On-Board Diagnostic Control Module C SOBDMC. The GSM controls gear selection.

Gear selection is as follows: Park, Reverse, Neutral and Drive. There is a Low Range button in the center of the gear selection dial for when more powertrain braking or lower gearing is required.