Multiplexing

Standard Corporate Protocol:

Multiplexing is the process of communication signals that are sent over a set of twisted-pair-wires. The increased number of modules on the vehicle dictate a more efficient method of communication. This process allows multiple modules to communicate with each other through the signal path (BUS+/BUS-). Modules communicate with the Powertrain Control Module (PCM) using Standard Corporate Protocol (SCP), which determines the priority in which the signals are sent. (Refer to Standard Corporate Protocol for more information.) Multiplexing reduces the weight of the car by reducing electrical wiring.