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
If it fails: lemon-manuals.org.ua

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Problems and Replacement Parts





Problems And Replacement Parts :






Replacement Of ECM/ICM And Smartra
In case of a defective ECM/ICM, the unit has to be replaced with a "virgin" or "neutral" ECM/ICM. All keys have to be taught to the new ECM/ICM. Keys, which are not taught to the ECM/ICM, are invalid for the new ECM/ICM . The vehicle specific data have to be left unchanged due to the unique programming of transponder.
In case of a defective SMARTRA, there is no special procedure required. A new SMARTRA device simply replaces the old one. There are no transponder-related data stored in this device.