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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6K Computer Ground Circuit


1. With 10-way connector removed from computer, turn ignition Off.
2. Connect an ohmmeter to cavity 10 of 10-way connector and ground.
3. If ohmmeter shows continuity with no resistance, replace the computer. Before replacing computer, ensure terminals in cavities 2 and 10 are making a good connection.
4. If ohmmeter indicates no continuity repair wire of cavity 10 of the 10-way connector for open circuit.
5. If ohmmeter indicates continuity with resistance, repair as required.