TuningBot DTC Database · v4.37.15
Manufacturer-specific interpretation for VAG. All interpretations of P1640
The control module's internal test reported the Engine control module (ECM) as faulty. This is the manufacturer-specific definition used by Audi.
ECM
The control module registered the fault condition described as "Internal Control Module: EEPROM Error". This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18048. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
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's internal test reported the Engine control module (ECM) as faulty. This is the manufacturer-specific definition used by Audi.
P1640 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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