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

Selectable Functions When Using VAG 1551/1552 or VAS 5051




On Board Diagnostic (OBD) functions
A list of On Board Diagnostic functions can be printed out by pressing the HELP button.

The following functions are available:

List of functions
01 - Check Control Module Versions
02 - Check DTC Memory
03 - Output Diagnostic Test Mode
04 - Basic Setting
05 - Erase DTC Memory
06 - End Output
07 - Code Control Module
08 - Read Measuring Value Block

Only the functions listed above can be used for the "AC/Heating Electronics" OBD program.
- Press -> button.

Indicated on display


Rapid data transfer HELP
Select function XX