October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Ignition Control Module: Description and Operation
All engine timing and spark distribution are electronic with no moving parts. During basic operations, the
Powertrain Control Module (PCM) determines the ignition timing. The
ignition control module (ICM) is no longer a stand alone component.