Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
Ignition Signal
Ignition Circuit:
PURPOSE The ignition signal is used by the ECU to control the ignitor unit. This allows ignition triggering to be accomplished with a relatively low current signal from the ECU.
OPERATION A signal is sent to the ignitor module whenever the engine is running. The signals are an on/off pulse, telling the ignitor when to fire the ignition coil.
