Electronic Control Module

This module controls operation of transfer case using inputs from push button controls, speed sensor and shift position sensor. On Bronco and "F" Series, module is located in right kick panel. On Bronco II and Ranger, module is located to left of right side speaker in instrument panel. Instrument panel pad must be removed to replace module. Module is equipped with a self-test capacity.

When either of the 2 switches in the overhead console are depressed, the electronic control module will analyze information from the transfer cases shift position sensor to verify its current position. The module also receives data from the speed sensor and clutch interlock switch, or Neutral safety switch depending on application.

If all design conditions are met, the electronic control module will signal the electronic shift motor to shift gear positions. After shift takes place, the module will read the input from the shift position sensor to determine if transfer case is in desired position. The electronic control module also will illuminate push buttons on overhead console indicating shift is completed.