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

- Flow of Diagnosis - Start Here

If after performing the diagnostic circuit check, the ``Check Engine'' light does not come on with a completely warmed-up engine, proceed to diagnostic test charts under ``System Diagnosis and Testing'' for an emission test failure problem or an engine performance problem (odor, engine surge, poor fuel economy).