Electronic Control Module

This module controls operation of transfer case, using inputs from push button controls, speed sensor and shift position sensor. On Explorer, module is located in driver-side rear compartment trim panel over rear wheel. On Ranger, module is located behind driver's seat. Module is equipped with a self-test capability.

When either of the 2 switches on instrument panel are depressed, electronic control module will analyze information from transfer case shift position sensor to verify its current position. Module also receives data from speed sensor and clutch interlock switch, or neutral safety switch depending on application.

If all conditions are met, electronic control module will signal electric shift motor to shift gear positions. After shift takes place, module will read input from shift position sensor to determine if transfer case is in desired position. Control module will then illuminate push button and dash indicator light.