Ranger throttle bodies are still cable actuated, not run by a throttle by wire servo. The ECU simply cuts fuel and spark to retard the engine.
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European Rangers have electronically actuated throutle. This is emission thing, but this unit is not reliable enought. But with electronically controlled throutle TC is used.

TC and Hill Start Assist work not only with throutle but with brakes. When wheel skids system with modulator increase pressure in relevant brake cylinder.
Traction controll and HSA are functions of brake control unit. With FDR unit (just accelerometer) and Steering Wheel Angle sensor Electronic Stabilize Program can easyly be installed, but with american emission standard ore with euro-II engines (all they are cabel controlled) these functions can not be used and they are deactivated with parametrization, becouse there is no BS<-->ECU can line. What to do - use cheappes ABS unit.
WHo wants to learn more, I reccomend visit Bosch, Wabco, Knorr-Bendix and Haldex sites. It sounds funny but some of these modern toys is easy to install and parametrize with notebook in garage.