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TuningBot DTC Database · v4.37.15

P0141 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

Generic (OBD-II) interpretation + 1 manufacturer-specific in the TuningBot DTC database.

P · PowertrainEmissionsOBD2
Brand pages:Ford

Generic (OBD-II) interpretation

P0141
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2) Generic · emissions Data confidence 90%

The control module detected improper operation of the O2 Sensor Heater circuit.

Symptoms

  • MIL illuminated
  • Possible increased fuel consumption
  • Possible unstable idle

Possible causes

  • Wiring
  • H025
  • ECM

Recommended checks

  • Read live sensor voltage/current and heater status
  • Inspect wiring and connectors
  • Check for exhaust leaks near the sensor
  • Check fuel trim values for upstream mixture faults

Manufacturer-specific interpretations

Ford

1 interpretation
P0141:01
O2 Sensor Heater Circuit, Bank 1 Ford · emissions Data confidence 94%

Ford documents P0141:01 for its 2024-2025 gasoline-engine OBD monitor strategy as o2 sensor heater circuit, bank 1. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Inspect relevant wiring and connectors
  • Check power supplies and grounds
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years

Related and nearby codes

How to read P0141

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

141

Specific fault index within the subsystem.

Frequently asked questions about P0141

What does P0141 mean?

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2). The control module detected improper operation of the O2 Sensor Heater circuit.

Is P0141 generic or manufacturer-specific?

P0141 exists both as a generic OBD-II code (same meaning on every make) and with 1 manufacturer-specific interpretation(s): Ford. Always read it in the context of your vehicle.

Can TuningBot remove P0141 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

ECU tuningStage 1 dyno results for Ford engines See the results →

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