The control module detected no activity on the P101B - Oxygen Sensor where a changing signal was expected. This is the manufacturer-specific definition used by BMW.
TuningBot DTC Database · v4.37.14
P101B P101B - Oxygen Sensor Circuit No Activity Detected Bank 2 Sensor 1
1 manufacturer-specific interpretation across 1 manufacturer in the TuningBot DTC database.
BMW
1 interpretationRelated and nearby codes
How to read P101B
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 P101B
What does P101B mean?
P101B - Oxygen Sensor Circuit No Activity Detected Bank 2 Sensor 1. The control module detected no activity on the P101B - Oxygen Sensor where a changing signal was expected. This is the manufacturer-specific definition used by BMW.
Is P101B generic or manufacturer-specific?
P101B is a manufacturer-specific code. In this database it is documented for: BMW. The same number can mean something different on other brands.
Can TuningBot remove P101B at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. 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: Oxygen Sensors (Lambda)
