PowertrainP1131
CautionSeverity: Caution - get it checked when you can
Lack of HO2S Switch - Sensor Indicates Lean (Bank 1)
Key terms: Control module: a small computer that runs one part of the car · Bank 1: the side of the engine containing cylinder 1 · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions
1What it means in plain English
The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.
2Common causes
- Sensor or actuator fault
- Wiring or connector fault
- Vacuum or intake leak
- Fuel or ignition problem
- Control module fault
3Can I drive?
Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 35
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P1131 | Tractor/Tipper/Haulage 28xx BS-VI Brand | Powertrain |
| BAIC Motor | P1131 | Lack Of HO2S11 Switches - Sensor Indicates Lean Brand | Powertrain |
| BMW | P1131 | Sensor dynamically too slow Brand | Powertrain |
| BYD | P1131 | NO. 306 battery voltage sampling wire loop fault Brand | Powertrain |
| Chery | P1131 | Brake Vacuum Booster Pump Control Circuit Voltage High Brand | Powertrain |
| Chrysler | P1131 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 1) SAE | Powertrain |
| Daewoo | P1131 | Swirl Control Solenoid Valve Brand | Powertrain |
| Daihatsu | P1131 | Electric throttle system failure 2 Brand | Powertrain |
| DFFS | P1131 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 1) SAE | Powertrain |
| DFXK | P1131 | Fuel temperature sensor signal implausible Brand | Powertrain |
| EOBD | P1131 | Syresensorsignal Brand | Powertrain |
| Ford | P1131 | DTC(Diagnostic Trouble Codes)(and P1130) or Brand | Powertrain |
| Geely | P1131 | Oxygen (Lambda) Sensor: B2 S1: Internal Resistance too High Brand | Powertrain |
| GM | P1131 | Swirl Control Solenoid Valve Brand | Powertrain |
| Great Wall | P1131 | Fuel temperature implausible Brand | Powertrain |
| Holden | P1131 | HO2S Circuit Sensor 1 Brand | Powertrain |
| Honda | P1131 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 1) SAE | Powertrain |
| Hyundai | P1131 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 1) SAE | Powertrain |
| Isuzu | P1131 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 1) SAE | Powertrain |
| Land Rover | P1131 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 1) SAE | Powertrain |
| Mahindra | P1131 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 1) SAE | Powertrain |
| Maserati | P1131 | Fuel Pressure Regulator Valve Brand | Powertrain |
| Mazda | P1131 | DTC(Diagnostic Trouble Codes)(and P1130) or Brand | Powertrain |
| Mitsubishi | P1131 | Module1(Cell3) harness Open Brand | Powertrain |
| Opel | P1131 | Swirl Control Solenoid Valve Brand | Powertrain |
| Perodua | P1131 | Electric throttle system failure 2 Brand | Powertrain |
| Peugeot | P1131 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 1) SAE | Powertrain |
| Porsche | P1131 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 1) SAE | Powertrain |
| Proton | P1131 | Module1(Cell3) harness Open Brand | Powertrain |
| Saab | P1131 | Swirl Control Solenoid Valve Brand | Powertrain |
| Subaru | P1131 | O2 Sensor Circuit (Short) Brand | Powertrain |
| Suzuki | P1131 | O2 sensor (Bank 1 Sensor-1) circuit continuity Brand | Powertrain |
| Tata | P1131 | Cam Command - Value Too High Brand | Powertrain |
| Toyota | P1131 | Bank 2 sensor 1 internal resistance too high Brand | Powertrain |
| Volkswagen | P1131 | Oxygen/Lambda Sensor Bank 2 Sensor 1: Internal Resistance too High Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Extended variant codes 11
These 7-character codes are manufacturer-specific variants of P1131 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Peugeot | P113100 | No description available | Powertrain |
| SsangYong | P113100 | Low voltage side current high during Lower DC-DC Converter (LDC) operation Brand | Powertrain |
| Peugeot | P113101 | No description available | Powertrain |
| Peugeot | P113102 | No description available | Powertrain |
| Peugeot | P113103 | No description available | Powertrain |
| Peugeot | P113104 | No description available | Powertrain |
| Peugeot | P113105 | No description available | Powertrain |
| Peugeot | P113106 | No description available | Powertrain |
| Peugeot | P113107 | No description available | Powertrain |
| Peugeot | P113108 | No description available | Powertrain |
| SsangYong | P113112 | Shift-by-Wire (SBW) Pulse-Width Modulation (PWM) circuit short to battery (+) Brand | Powertrain |
6Related codes
Browse Pxxx codes or P113xx codes.