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)

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6 = Output Test Code




- The test code aids quality assurance and is also the basis for constant improvement of the diagnosis programs.

- To keep the duration of the printout as short as possible, the control unit data are not output in plain test as in "Read fault memory", but merely as numerical values.


- With new programs, a test code is no longer printed out when the ID page is printed out.

- The "Test code" printout must be enclosed with the warranty claim.