OBD LensBMW: P2231
O2 Sensor Signal Circuit Shorted to Heater Circuit
- Reference namespace
- bmw
- Source revision
- legacy-oem-dtc-r2-20260924
Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.
Related catalog brands: BMW.
10 profiles assigned this reference family
Dodge / Fiat: P2231
Lambda sensor heater coupling detection
- Reference namespace
- fiat
- Source revision
- legacy-oem-dtc-r2-20260924
Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.
Related catalog brands: Fiat, Dodge.
27 profiles assigned this reference family
- 500Fiat
- 500 1.2 Fire 8V (CAN)Fiat
- 500 1.3 MultiJet 16V (CAN)Fiat
- 500 1.4 MultiAir 16V (CAN)Fiat
- 500 1.4 T-Jet 16V (CAN)Fiat
- 500e (2013 - 2019)Fiat · 2013–2019
- 500e (2020-) BEV ElectricFiat · 2020–onward
- 500XFiat
- Bravo 1.4 T-Jet 16V (CAN)Fiat
- Bravo 1.4 T-Jet 16V (KWP)Fiat
- Dart / ViaggioDodge
- Doblo 1.3 MultiJet 16V (CAN)Fiat
- Doblo 1.4 8v KWPFiat
- Freemont DieselFiat
- Multijet 2.0 Diesel + ZF 9HP48Fiat
- Punto 1.2 8V (CAN)Fiat
- Punto 1.3 MultiJet 16V (CAN)Fiat
- Punto 1.4 Fire 8V (CAN)Fiat
- Punto 1.4 MultiAir 16V (CAN)Fiat
- Punto 1.4 T-Jet 16V (CAN)Fiat
- Punto 1.4 T-Jet 16V (KWP)Fiat
- Qubo 1.2 Fire 8V (CAN)Fiat
- Qubo 1.3 MultiJet 16V (CAN)Fiat
- Tipo / Egea 1.6 MultijetFiat
3 more related profiles are listed in the vehicle directory.
Genesis / Hyundai / Kia: P2231
O2s Signal & Heater - Short (B1/S1)
- Reference namespace
- hyundai-kia
- Source revision
- legacy-oem-dtc-r2-20260924
Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.
Related catalog brands: Kia, Genesis, Hyundai.
401 profiles assigned this reference family
- OBD-II / EOBDHyundai
- OBD-II / EOBDGenesis
- Accent III / Verna MC 1.5 CRDI DieselHyundai
- Accent III MC / Verna 1.4/1.6 MPIHyundai
- Accent IV (RB/RC) / Verna / i25 / Excel III / Grand Pony 2010-2017 1.4/1.6 MPIHyundai · 2010–2017
- Accent IV RB 1.4/1.6 GDIHyundai
- Accent IV RB 1.6 CRDIHyundai
- Accent V / Verna HC 1.5 CRDI DieselHyundai
- Accent V / Verna HC 1.6 CRDI Diesel (2018-2022)Hyundai · 2018–2022
- Cadenza VG / K7 (2010-2016) 2.4 GDIKia · 2010–2016
- Cadenza VG / K7 (2011-2016) 2.7Kia · 2011–2016
- Cadenza VG / K7 (2011-2018) 3.0Kia · 2011–2018
- Cadenza VG / K7 (2011-2018) 3.0 LPIKia · 2011–2018
- Carens KY 1.5 CRDI Diesel (2021-n.d.)Kia · 2021–onward
- Carens/Rondo 2 UN (2006-2012) 2.0/2.4 MPI CANKia · 2006–2012
- Carens/Rondo 3 RP (2012-2021)Kia · 2012–2021
- Carens/Rondo 3 RP (2012-2021) 1.6 GDIKia · 2012–2021
- Carens/Rondo 3 RP (2013-2014) 1.7 CRDI Diesel TCIKia · 2013–2014
- Carens/Rondo 3 RP (2015-2021) 1.7 CRDI Diesel TCI-U2Kia · 2015–2021
- Carnival KA4 1.6 T-GDI HEV (2020-)Kia · 2020–onward
- Carnival KA4 2.2 CRDI Diesel (2020-)Kia · 2020–onward
- Carnival KA4 PE 2.0 T-GDI (2020-)Kia · 2020–onward
- Carnival KA4 PE 3.5 (2020-)Kia · 2020–onward
- Carnival/Sedona VQ-2 2.7 V6 (2006-2014)Kia · 2006–2014
377 more related profiles are listed in the vehicle directory.
Generic OBD2: P2231
Heated oxygen sensor (HO2S) 1, bank 1 - signal circuit shorted to heater circuit
- Reference namespace
- obd2
- Source revision
- legacy-2.2.20
Generic OBD2 definition; confirm the protocol and vehicle-specific service information.
What should I check before using this definition?
Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.
Organize a scan report or recordingOBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.
Read the reference method