OBD Technical Data

OBD, Technical Data

Equipment

• Data is transmitted between the control module and the tester (VAS5051) via operating mode "On Board Diagnostic (OBD)".

• DTC memory is designed for permanent memory and is therefore not dependent on voltage supply.

• Display of stored DTCs occurs after initiation of display mode. Refer to => [ DTC Memory, Checking ] DTC Memory, Checking.

• DTC memory must be erased after malfunction is repaired. Refer to => [ DTC Memory, Erasing ] DTC Memory, Erasing.

Important:

• Readiness code must be generated every time DTC memory is erased. Refer to => [ Readiness Code, Generating ] Readiness Code, Generating.

• If the ECM recognizes malfunctions that lead to a worsening of emissions values, it indicates them by lighting the Malfunction Indicator Lamp (MIL) (K83) in the instrument cluster. Meaning of exhaust Malfunction Indicator Lamp (MIL) (K83). Refer to => [ Exhaust Malfunction Indicator Lamp ] Exhaust Malfunction Indicator Lamp.

• EPC relevant malfunctions are also indicated by the Electronic Power Control (EPC) warning lamp in the instrument cluster.