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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DTC Memory, Erasing



Erase DTC Memory

NOTE: The vehicle V.A. G 1552 System tester can be used instead of the V.A. G 1551 scan tool, however a print-out is not possible.

- Connecting scan tool. Scan Tool Connecting
- Initiating On Board Diagnostic (OBD). On Board Diagnostic (OBD) For Convenience System, Initiating

Prerequisites:
- DTCs are corrected
- Functional check has been carried out
- DTC memory checked again

Indicated on display:

Rapid data transfer HELP
Select function XX


- Press buttons -0- and -5- (the function "Erase DTC memory" is entered with 05).

Indicated on display:

Rapid data transfer Q
05 Erase DTC memory


- Confirm entry with the -Q- button.

Indicated on display:

Rapid data transfer ->
DTC memory is erased!


- Press -> button.

Indicated on display:

Rapid data transfer HELP
Select function XX


NOTE:
- If this appears in the display, the test sequence is faulty.
- Adhere strictly to test sequence; first of all check DTC memory, then erase memory.

- Press buttons -0- and -6- to end the output.

Indicated on display:

Rapid data transfer Q
06 End output


- Confirm entry with the -Q- button.

Indicated on display:

Rapid data transfer HELP
Enter address word XX


- Switch off ignition.
- Disconnect connector to V.A.G 1551 scan tool.