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)

Or, hide this message: temporarily or permanently

Check Engine Warning Lamp

The Check Engine warning lamp will light when the ignition switch is placed in the ON position and the engine is not operating. When the engine is started, the Check Engine warning lamp should go off. If the lamp remains lighted, the diagnostic system has detected a malfunction or abnormality in the system.