Question about 2005 Toyota Camry 2.4

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P0031 CHECK ENGINE

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Hi Raul, You have a problem with the oxygen sensor or wiring on bank one. Regards John

Posted on Oct 27, 2012

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Posted on Jan 02, 2017

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Code p0031 p0037 need see a video how to fix


P0037 HO2S Heater Control Circuit Low B1S2

https://www.obd-codes.com/p0031 Check for a fuse bing blown , Heater circuit shorted in O2 sensor blowing the fuse , maybe . You don't say what make , model an year vehicle an engine size .

Mar 28, 2017 | Cars & Trucks

1 Answer

2003 Lexus GS300 P0031 code


Yes the O2 sensor preheater problem will turn on the VSC light, see the complaint often, why? don't know
.P0031 TOYOTA - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 1
In most cases the O2 being replaced cures the code but here is the full story.
Possible causes- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit open shorted to ground
- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit poor electrical connection
- Faulty Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit
- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit fuse
- Faulty Engine Control Module (ECM)

Jun 16, 2012 | 2003 Lexus Gs 300

1 Answer

Service engine light came on and has displayed code P0031 and P0041. What could be the problem?


P0031 is HO2S Heater Control Circuit Low Bank 1 Sensor 1 P0041 is O2 Sensor Signals Swapped Bank 1 Sensor 2/ Bank 2 Sensor 2

Jan 14, 2011 | 1994 Cadillac DeVille

1 Answer

My check engine light has been on for three days and when a scanner was placed on it the following information came-up. Trouble code P0031, H02S Heater Control Circuit Low (Bank #1 Sensor #1). However, I...


I can only help with the code,P0031=Shorted low condition detected in the oxygen sensor,1/1 heater element control feed back sense circuit.
Also a web site which gives the code breakdowns-www.wjjeeps.com/faultcodes.htm.

maori boy

Dec 26, 2010 | 2004 Jeep Grand Cherokee

2 Answers

Engine light comes on and when I put the computer to my Jeep, I will get P0031


P0031 is H02S heater control circuit Low ( bank #1 sensor #1). Good Luck and have a good XMASS.

Dec 14, 2010 | Jeep Grand Cherokee Cars & Trucks

1 Answer

05 COROLLA P0031


What does that mean? A P0031 DTC (diagnostic trouble code) refers to the O2 sensor (oxygen sensor) located on Bank 1 in front of the catalytic converter. There is also an oxygen sensor behind the converter which is Sensor #2.
This O2 sensor #1 may also be refered to as an air/fuel ratio sensor since on some vehicles it is. It detects the amount of oxygen in the exhaust gas compared to the outside air and then vehicle's computer adjusts the air/fuel ratio going into the engine. The sensor is less effective when the exhaust gas temperature is low, so it includes a heater which is activated to help get better readings from the A/F O2 sensor. Essentially this P0031 code means that the resistance of the heater circuit is lower than normal. In most cases, that resistance level must fall below 0.8 A to trigger the DTC code.
Note, this code is very similar in nature to P0032, P0051, and P0052

Potential Symptoms Most likely you'll not notice any symptoms other than the MIL (malfunction indicator lamp, a.k.a. the check engine light) will illuminate.
Causes A P0031 DTC trouble code may be caused by one or more of the following:
  • A short or open in the heater circuit in the sensor
  • A failed O2 sensor heater
  • Wiring/connectors broken/frayed leading to sensor and/or relay
  • Failed PCM/ECM
Possible Solutions Need an O2 Sensor? Visit our O2 Sensor shopping area for the lowest price on your replacement sensor!
To fix a P0031 DTC code, you'll need to do a proper diagnosis. To do that, you'll want to inspect the wiring and connectors leading to the sensor. Also if equipped with a heater relay and fuse, you'll want to check those as well. Use a digital volt ohm meter to:
  • check for 12 volts at the heater circuit feed (hint: unplug the sensor and check at the wiring connector to do this measurement)
  • check the ground circuit for continuity
  • measure the resistance of the heater circuit (done on the sensor itself)
  • measure the resistance and voltage of the wiring
Refer to a service manual for the correct specifications (volts, ohms) for your vehicle. On some Toyota vehicles this code is triggered when the resistance of the heater circuit is below 0.8 A.
With that said, a common fix for this DTC is to replace the air/fuel (O2 oxygen) sensor #1 on bank 1.
Please keep in mind that OEM (original equipment) replacement sensors are recommended (from the dealer). Aftermarket sensors can be less reliable and of poorer quality (not always, but more often). There's also a chance that replacement parts for the P0031 code may also fall under a federal emissions warranty (check with your dealer to see if it's covered).

Aug 20, 2009 | 2006 Toyota Corolla

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