The control module detected that the HO2S12 Sensor Circuit Voltage value was below the expected limit. This is the manufacturer-specific definition used by Audi.
TuningBot DTC Database · v4.37.15
P1100 VAG - HO2S12 Sensor Circuit Voltage Too Low Air Leak
Manufacturer-specific interpretation for VAG. All interpretations of P1100
What P1100 means
The control module detected that the HO2S12 Sensor Circuit Voltage value was below the expected limit. This is the manufacturer-specific definition used by Volkswagen.
Related and nearby codes
How to read P1100
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1100
What does P1100 mean?
HO2S12 Sensor Circuit Voltage Too Low Air Leak. The control module detected that the HO2S12 Sensor Circuit Voltage value was below the expected limit. This is the manufacturer-specific definition used by Audi.
Is P1100 generic or manufacturer-specific?
P1100 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 P1100 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.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
