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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Main Relay (Computer/Fuel System): Description and Operation

ECU battery voltage is supplied to the BATT terminal through the STOP fuse (15A), at all times. The Ignition Switch provides voltage to terminals +B and +B1 of the ECU through the IGN fuse (10A), when the ignition switch is turned on. System battery voltage must be at least 10 volts in order to operate ECU functions.