Catalyst Temperature Sensor 2 Circuit Open/Short to B+
VAG · emissions
Data confidence62%
The control module detected an interruption (open circuit) in the Catalyst Temperature Sensor 2 circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
Possible causes
Wiring open/short to positive
temperature sensor
ECM
Applies toAudi
P1449
Catalyst Temperature Sensor 2 Circuit Open/Short to B+
VAG · emissions
Data confidence80%
The control module detected an interruption (open circuit) in the Catalyst Temperature Sensor 2 circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Volkswagen.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
449
Specific fault index within the subsystem.
Frequently asked questions about P1449
What does P1449 mean?
Catalyst Temperature Sensor 2 Circuit Open/Short to B+. The control module detected an interruption (open circuit) in the Catalyst Temperature Sensor 2 circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
Is P1449 generic or manufacturer-specific?
P1449 is a manufacturer-specific code. In this database it is documented for: VAG. The same number can mean something different on other brands.
Can TuningBot remove P1449 at file level?
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.