Final answer:
The primary circuit of an automotive ignition system includes components like the ignition coil, ignition module, and spark plug wire, but does not include the ignition switch.
Step-by-step explanation:
In an automotive primary circuit, the components are responsible for generating and distributing the high voltage required for spark plug ignition. The primary circuit consists of an ignition coil that steps up the battery voltage to produce high voltage, an ignition switch that controls the flow of current to the ignition system, an ignition module that manages the timing and duration of the spark, and a spark plug wire that delivers the high voltage to the spark plug.
Therefore, the primary circuit component that is NOT part of the primary circuit is the ignition switch. This component is responsible for controlling the current flow but does not contribute to the generation or distribution of high voltage.