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LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Diagnosis information - DME (DFI)

Transmission fault

NOTE:
- The information is supplied via CAN.
- The DME control unit activates the Check Engine lamp only [on behalf of] the PDK (transmission) control unit.

Diagnostic conditions
- Vehicle voltage more than 9 V
- Engine running

Possible fault causes
- Fault memory entry in PDK (transmission) control unit as a result of transmission fault