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

List of Selectable Functions




01 - Check control module version
02 - Check Diagnostic Trouble Code (DTC) memory
04 - Initiate basic setting
05 - Erase DTC memory
06 - End output
08 - Read measured value block

Further functions, which can be printed out by pressing the HELP button, need not be considered.

The VAG 1551 Scan Tool returns to the following start position after checking each function:

Indicated on display:


Rapid data transfer HELP
Select function XX