TuningBot DTC Database · v4.37.15
Manufacturer-specific interpretation for VAG. All interpretations of P1423
The control module detected that the measured Secondary air injection (AIR) system, Bank 1 flow was lower than the value expected while operation was commanded. This is the manufacturer-specific definition used by Audi.
The control module detected that the measured Secondary Air Injection System; Bank 1 flow was lower than the value expected while operation was commanded. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17831. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
Malfunction Indicator Light (MIL) active
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 that the measured Secondary air injection (AIR) system, Bank 1 flow was lower than the value expected while operation was commanded. This is the manufacturer-specific definition used by Audi.
P1423 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: Secondary Air System
ItalianoIT
DeutschDE
EspañolES
PortuguêsPT
FrançaisFR
РусскийRU