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

Testing Notes

- Verify that a pass code 11/111 was received in Key On Engine Off (KOEO), Engine Running (KOER), and Continuous self tests before continuing with this test.

- If a symptom is present and the EEC system is suspect, continue to symptom charts. Symptom Cross Reference Chart

- If the EEC system is not suspected or if symptom or application is not contained in the diagnosis by symptom charts, go to Diagnosis By Symptom (Diagnostic Routines). Diagnostic Routines