Profile Ignition Pick-Up (PIP)

On Distributor Ignition (DI) systems, PIP signal is provided by a 12-volt reference from ignition module to Hall Effect switch inside distributor. This reference voltage is modulated by window/shutter Hall Effect switch. Monitored reference is pulled low when shutter blade is out of Hall Effect switch window.

When shutter blade enters window, 12-volt reference returns, and ignition module sends PIP signal to PCM. PCM uses the PIP signal as an RPM reference to calculate timing adjustments. PCM timing control returns to ignition module in form of a Spark Output (SPOUT) signal.