TuningBot DTC Database · v4.37.15
2 manufacturer-specific interpretations across 1 manufacturer in the TuningBot DTC database.
VAGVAGThe control module detected improper operation of the Engine control module (ECM) 2. This is the manufacturer-specific definition used by Audi.
Trouble code(s) stored
The control module detected a fault associated with the Please Check DTC Memory of ECU Number 2 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18331. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
Malfunction Indicator Light (MIL) active
Fault Code(s) stored in Engine Control Unit 2
Check/Fix Fault Code(s) in Engine Control Unit 2
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (2 interpretations). The control module detected improper operation of the Engine control module (ECM) 2. This is the manufacturer-specific definition used by Audi.
P1923 is a manufacturer-specific code. In this database it is documented for: VAG. The same number can mean something different on other brands.
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Understand the system behind this code: Diagnostic Strategy and DTC Logic
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