P1131

Set by the manufacturer, so it means different things on different makes. 20 makes in the table below.

More codes than this one? Paste your whole scan

What P1131 means, by make 20 makes

Audi Bank2 - Sensor1 Internal Rsistance too High
BMW HO2S 2 Bank 2 Dynamic Test Failure
Chevrolet Heated Oxygen Sensor (HO2S) Circuit Low Variance Bank 1 Sensor 2
Chrysler Fuel Pressure Regulator Valve
Citroen Lack Of HO2S Switch - Sensor Indicates Lean
Dodge Fuel Pressure Regulator Valve
Ford Lack Of HO2S Switch - Sensor Indicates Lean
Jaguar Lack of H02S-11 switch, sensor indicates lean
Jeep Fuel Pressure Regulator Valve
Land Rover Oxygen Sensor Engine Lean
Lincoln Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank 1
Mazda HO2S Bank 1 Sensor 1 Signal Below 0.45v (A/F Ratio Too Lean)
Mercedes-Benz H02S - 11 signal above 0.45v (A/F ratio too lean)
Mercury Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank 1
Nissan Swirl Control Solenoid Valve
Peugeot Lack Of HO2S Switch - Sensor Indicates Lean
Saab O2S. Switch point - lean. Sensor 1
Subaru Front oxygen (A/F) sensor microcomputer problem
Volkswagen Bank2 - Sensor1 Internal Rsistance too High
Volvo Bank2 - Sensor1 Internal Rsistance too High

Each line is that manufacturer's own meaning for P1131. They are genuinely different faults, not rewordings of one, so a meaning listed against one make says nothing about the others. If your make is not listed, we do not hold it - your manufacturer's service information is the authority.

Code structure P1131

Powertrain

engine, transmission and emissions

Manufacturer-specific

Defined by the vehicle manufacturer, so the meaning varies between makes.

Fault index

identifies the specific fault

Powertrain Manufacturer-specific

Nearby codes in the P1 range

Manufacturer code meanings from kierandrewett/obd (b56a07a), used under the MIT licence. Copyright (c) Kieran Drewett. SpareRadar is not affiliated with the dataset's authors.