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
Data Link Connector: Description and Operation
The diagnosis switch terminal included in the monitor coupler in the engine room. When this terminal is grounded, a diagnosis signal is fed to ECM which then outputs idle air control (IAC) duty through duty output terminal.