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.

Cranking Signal

Cranking signal is a 12-volt signal monitored by the ECM. Signal is present when ignition switch is in the START position. The ECM uses signal to determine the need for starting enrichment. ECM also cancels diagnostics until engine is running and 12-volt signal is no longer present.