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)
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temporarily or
permanently
Ignition Control Module: Description and Operation
The ignition system from the ECU is amplified by two
power transistors, which turn the ignition coil primary circuit on and off, inducing proper high voltage in the secondary circuit.