Ford DIS Ignition Timing Diagram - PIP, CID, SPOUT & Coil Current Waveforms

This document is a timing diagram for a Ford Distributorless Ignition System (DIS), uploaded as one page of a multi-page DIS reference set. The upper portion shows waveform traces plotted against crankshaft rotation (marked in TDC references spanning 360 crank degrees) for the PIP (Profile Ignition Pickup) signal, the CID (Cylinder Identification) signal, the SPOUT (Spark Output) signal, and the coil current signals on pins 11, 9, and 8, plus the IDM (Ignition Diagnostic Monitor) signal on pin 12. Annotations show the PIP signal occurring at 10° BTDC with a 36° reference and 60°/60° spacing between events. Dashed lines correlate each SPOUT edge with the firing points labeled "FIRE COIL 2," "FIRE COIL 3," and "FIRE COIL 1," showing the coil firing sequence relative to crank position. The lower portion illustrates the vane cup as installed on the engine: one rotor turning at crank speed generates the PIP signal (with 120° and 60° vane spacing noted), while a second rotor turning at 1/2 crank speed generates the CID signal. A reader can learn the timing relationships among PIP, CID, SPOUT, coil current, and IDM signals in the DIS system and how the vane cup produces the PIP and CID signals.