Ignition Timing Control System: Notes
WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.
The Powertrain Control Module (PCM) completely controls ignition system. During crank/start mode, PCM will set a fixed amount of spark advance for an efficient engine start.