P0031

HO2S Heater Control Circuit Low (Bank 1 Sensor 1)

DTC P0031, sometimes indicated as P003100 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing ho2s heater control circuit low (bank 1 sensor 1).

What the code means
The code means that there is a problem with the heater circuit for the front oxygen sensor on Bank 1.
What needs to be done
The code needs to be diagnosed and repaired.

  • P0031: HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
  • P0031: HO2S Heater Control Circuit Low Bank 1 Sensor 1
  • P0031: HO2S Bank 1 Sensor 1 Heater Circuit Low
  • P0031: HO2S Heater Control Circuit Low
  • P0031: Heated oxygen sensor (HO2S) 1, bank 1, heater control – circuit low
  • P0031 00: The lambda probe lug circuit (cylinder block No. 1, probe No. 1) - short circuit to "ground"
  • P0031 00: Heated oxygen sensor (HO2S) 1, bank 1, heater control - circuit low

See Also: Related Error Codes
DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • ITB15033 - FUEL SYSTEM, GASOLINE
    INFINITI: If you confirm: the mil is on with one or more of the following dtcs stored: bank 1 - P2096, P2097 --- post cat fuel trim sys b1 - P0130, P0131, P0132 --- a/f sensor1 (b1) - P0031, P0032 --- a/f sen1 htr (b1) - P014C, P014D,
  • ITB11054A - BACK OVER PREVENTION
    INFINITI: If you confirm: any of the following dtcs are stored in the ecm: - P0031 / P0051, P0032 / P0052, P0130 / P0150, P0133 / P0153, P2A00 / P2A03, P1148 / P1168 or any of the following dtcs are stored in the ecm as a result of one of the a
  • 18-013-14 REV. A - POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
    JEEP: Flash: mil illumination P2251- o2 sensor 1/1 negative current control circuit open and/or P0031- o2 sensor 1/1 heater circuit low this bulletin involves selectively erasing and reprogramming the powertrain control module (pcm) with new sof
  • 18-013-14 - POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
    JEEP: Flash: mil illumination P2251- o2 sensor 1/1 negative current control circuit open and/or P0031- o2 sensor 1/1 heater circuit low this bulletin involves selectively erasing and reprogramming the powertrain control module (pcm) with new s
  • PIT5336 - ELECTRICAL SYSTEM
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that have a service engine soon malfunction indicator lamp on. Technician may find a diagnostic trouble codes P0030, P0031, P0032, P0036, P0037
  • LSB-0032-10 - POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
    LEXUS: Lexus: mil on dtc P2195, P2197, P0138, P0158, P0031, or P0051. Engine/hybrid system. Engine control. Some vehicles may exhibit a mil on condition with one or more of the diagnostic trouble codes (dtcs) stored in the engine control modul
  • 3975 - ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
    PONTIAC: Ses light due to dtc's P0031, P0101, P0131, P0137, and/or P0171. *kb
  • 00305 - ENGINE AND ENGINE COOLING:ENGINE
    LEXUS: Malfunction indicator lamp (mil) on with diagnostic trouble code (dtc) P0031, P0051, P2238, and/or P2241. *tt
  • 00205 - ENGINE AND ENGINE COOLING:ENGINE
    LEXUS: Malfunction indicator lamp (mil) on with diagnostic trouble code (dtc) P0031, P0051, P2238, and/or P2241. *tt
  • 00905 - ENGINE AND ENGINE COOLING:ENGINE
    TOYOTA: Malfunction indicator lamp (mil) on with diagnostic trouble code (dtc) P0031, P0051, P2238, and/or P2241 (oxygen sensor heater control circuit). *tt
  • 00805 - ENGINE AND ENGINE COOLING:ENGINE
    TOYOTA: Malfunction indicator lamp (mil) on with diagnositc trouble code (dtc) P0031, P0051, P2238, and/or P2241 (oxygen sensor heater control circuit). *tt
  • 00105 - ENGINE AND ENGINE COOLING:ENGINE
    TOYOTA: Malfunction indicator lamp (mil) on with diagnostic trouble code (dtc) P0031, P0051, P2238, and/or P2241. *tt
  • 00405 - ENGINE AND ENGINE COOLING
    TOYOTA: Malfunction indicator lamp (mil) on with diagnostic trouble code (dtc) P0031, P0051, P2238 and/or P2241. *tt
  • 03504 - ENGINE AND ENGINE COOLING:ENGINE
    SCION: Malfunction indicator lamp on with diagnostic trouble code P0031 and/or P2238. *tt
  • 03404 - ENGINE AND ENGINE COOLING:ENGINE
    TOYOTA: Malfunction indicator lamp on with diagnostic trouble code P0031 and/or P2238. *tt revision. *tt
  • 03304 - ENGINE AND ENGINE COOLING:ENGINE
    TOYOTA: Malfunction indicator lamp on with diagnostic trouble code P0031 and/or P2238. *tt
  • 03204 - ENGINE AND ENGINE COOLING:ENGINE
    TOYOTA: Malfunction indicator lamp on with diagnostic trouble code P0031 and/or P2238. *tt
  • 03604 - ENGINE AND ENGINE COOLING:ENGINE
    TOYOTA: Malfunction indicator lamp on with diagnostic trouble code P0031 and/or P2238. *tt
  • 01503 - ENGINE AND ENGINE COOLING:ENGINE
    TOYOTA: Malfunction indicator lamp (mil) on with diagnostic trouble code (dtc) P0031, P0051, P2238 or P2241. *tt
  • EG00203 - ENGINE AND ENGINE COOLING:ENGINE
    LEXUS: Malfunction indicator lamp on with diagnostic trouble code P0031, P0051, P2238 or P2241. *tt
Consumer Complaints for this DTC



2006 TOYOTA COROLLA with 156000. miles

The engine light won't go out there is a error reading of P0031 on the o2 sensor been replace 7 to 10 times and the light still stays on even resetting.I have problems year after year with my brakes over all i lost total trust in Toyota Corolla plus a lot more problems Toyota takes forever to send out the recall letters. I have 8 recalls but when you go look it up its states no recalls well this is why i lost trust Toyota doesn't care they use to be the best car ever not anymore.
FUEL/PROPULSION SYSTEM, SERVICE BRAKES ELECTRICAL SYSTEM



2006 TOYOTA AVALON with 72763.0 miles

The check engine light came on with the vsc and slip lights on the dash. Had it scanned and the codes are P2195 and P0138. I am having a huge problem with this, i feel that Toyota should cover this problem or atleast most of it. It's $1700 to fix this problem that many Avalon owners are or have had with this!!! 06 Toyota Avalon - edmunds answers jan 10, 2009 - P2195 - oxygen (a/f) sensor signal stuck lean (bank 1 sensor 1) ... P0138 - oxygen sensor circuit high voltage (bank 1 sensor 2) ..... After owning a certified pre-owned 2006 Avalon for 1 month, the "check engine" ... 1 (rh) exhaust manifold" is that the P0031 code was on one not both af sensors. You visited this page on 3/19/14. P2195 Toyota - engine-codes.Com engine-codes.Com/P2195_Toyota.Html' 2005-2007 Toyota Avalon, 2007-2008 Toyota camry service bulletin obdii code P2195 ... 2005-2006 Toyota corolla service bulletin obdii code P2195. You visited this page on 3/19/14. Toyota technical service bulletin index - autopro import repair apr 2, 2013 - some Avalon camry and solara vehicles may exhibit a rattle type noise coming from ... Some 2006 - 2009 model year camry and 2007 - 2009 model year camry hv .... A mil 'on' condition with diagnostic trouble code (dtc) P2420 stored. ..... Mil "on" dtc P2195, P0138, and/or P0031(tsb-0066-10). You visited this page on 3/19/14. 1 complaints: 2005 Toyota Avalon check engine light is on www.Carcomplaints.Com/.../Avalon/2005/.../check_engine_light_is_on.S...' mar 10, 2014 - the 2005 Toyota Avalon has 1 complaints for check engine light is on. ... Was the check engine light codes = P0138 o2 sensor/P2195 af sensor.
ENGINE, ELECTRICAL SYSTEM FUEL SYSTEM, GASOLINE



2003 TOYOTA SEQUOIA with 66253.0 miles

Vsc and vsc of lights are oncodes C1223 abs control system malfunction, C1231 steering angle sensor, and C1247 stroke sensor indicates needs the skid control ecu t 2.0 replaced skid control ecu 08/01/2010 check engine light found P0031 af sensor b1s1 t1.0 parts replaced. 6/01/2013 again vsc trac off service engine light on and dealership wants 1400.00 for new computer.
SERVICE BRAKES, HYDRAULIC, ELECTRONIC STABILITY CONTROL VEHICLE SPEED CONTROL

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