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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Checking Communication Cable to Data Link Connector (DLC)




Checking Communication Cable To Data Link Connector (DLC)







- Ignition off.
- VGLA control module disconnected.
- Disconnect VCT 2000 from the data link connector (DLC).

Connect an ohmmeter between data link connector (DLC) terminal 7 and VGLA control module connector #B19.

The ohmmeter should read approximately 0 [ohm].

OK - Checking For an Open-Circuit

Not OK - Checking the Communication Cable