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

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ECM Re-Communicating Function: Description

ECM Re-Communicating Function: Description

Performing following procedure can automatically perform re-communication of ECM and but only when the ECM has been replaced with a new one (*1).
*1: New one means an ECM which has never been energized on-board. (In this step, initialization procedure by SDT is not necessary)

NOTE:
- When registering new Key IDs or replacing the ECM that is not brand new, refer to SDT Operation Manual.
- If multiple keys are attached to the key holder, separate them before work.
- Distinguish keys with unregistered key ID from those with registered ID.