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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Throttle Switch (Idle Switch Contact) Check

1. With ignition Off, disconnect multiple pin plug from ECU.
2. Connect suitable ohmmeter across ECU connector terminals 4 and 12.
3. With throttle closed, resistance value should be 0 ohms.
4. With throttle opened, resistance value should be infinite. Switch over from throttle closed to throttle open should take place with a throttle gap of approximately 1°.