The control module detected an unstable or intermittent signal in the O2 Sensor Heater circuit. This is the manufacturer-specific definition used by MINI.
TuningBot DTC Database · v4.37.15
P1155 MINI - O2 Sensor Heater Circuit Intermittent Bank 2 Sensor 2
Manufacturer-specific interpretation for MINI. All interpretations of P1155
What P1155 means
Related and nearby codes
How to read P1155
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 P1155
What does P1155 mean?
O2 Sensor Heater Circuit Intermittent Bank 2 Sensor 2. The control module detected an unstable or intermittent signal in the O2 Sensor Heater circuit. This is the manufacturer-specific definition used by MINI.
Is P1155 generic or manufacturer-specific?
P1155 is a manufacturer-specific code. In this database it is documented for: MINI. The same number can mean something different on other brands.
Can TuningBot remove P1155 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: Oxygen Sensors (Lambda)
