Operation CHARM: Car repair manuals for everyone.
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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Data Link Connector: Description and Operation

There are three modules which can be accessed with a Tech 1 Scan Tool through the Data Link Connector. The 800 CKT provides a path that allows the Scan Tool to "talk" with the Powertrain Control Module (PCM), Diagnostic Energy Reserve Module (DERM), and the Electronic Brake Control Module (EBCM). After communication is established, system operations can then be monitored for diagnostic purposes.