A system is provided for the control of multiple engines in a multi-combination vehicle having at least two engines, each engine having its own power source and an electronic control module. The system includes an electronic throttle control having a power input and a variable output representative of a desired operation of each of the engines. The system further includes a throttle control module that is provided power from each of the electronic control modules and selectively provides power to the power input of the electronic throttle control from a selected one of the electronic control modules. The variable output of the electronic throttle control is in communication with at least the selected one of the electronic control modules. In other embodiments, the system of the present invention is effective for the control of multi-combination vehicles having at least three engines.