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

Password In the Status

THE USER PASSWORD CAN BE IN THE STATUS

00. Not yet checked
The status is stored in the EEPROM. In case of incorrect or no plausible data from this circuit, the ECM cannot check the status and the ECM sends 00.

01. Learnt
The password has been taught successfully to the ECM.

02. Virgin
This is the status at the end of the ECM production line before delivery to the final customer.

04. Locked by timer
After a certain number of incorrect inputs, the ECM is locked for one hour and no inputs are accepted during this time.

05. Teaching not accepted
This status is set if, for example, the ECM is in neutral status.