PowertrainP1146
CautionSeverity: Caution - get it checked when you can
Heated O2 Sensor 2
Key terms: Control module: a small computer that runs one part of the car · 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 23
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P1146 | No description available | Powertrain |
| BYD | P1146 | NO. 327 battery voltage sampling wire loop fault Brand | Powertrain |
| Chery | P1146 | Mass Air Low Sensor-G70 Supply Voltage Brand | Powertrain |
| Daewoo | P1146 | Heated O2 Sensor 2 Brand | Powertrain |
| DFFS | P1146 | Heated oxygen sensor 2 minimum voltage monitoring Brand | Powertrain |
| DFXK | P1146 | Mass Air Flow Sensor (G70): Supply Voltage Brand | Powertrain |
| EOBD | P1146 | Fel: nållyftskonsekvens Brand | Powertrain |
| Geely | P1146 | Mass Air Low Sensor-G70 Supply Voltage Brand | Powertrain |
| GM | P1146 | Heated O2 Sensor 2 Brand | Powertrain |
| Great Wall | P1146 | Mass Air Low Sensor-G70 Supply Voltage Brand | Powertrain |
| Hyundai | P1146 | No description available | Powertrain |
| Land Rover | P1146 | No description available | Powertrain |
| Mahindra | P1146 | No description available | Powertrain |
| Maserati | P1146 | Fuel rail pressure sensor B circuit low Brand | Powertrain |
| Nissan | P1146 | Heated Oxygen Sensor (HO2S) 2 Brand | Powertrain |
| Peugeot | P1146 | No description available | Powertrain |
| Porsche | P1146 | Lambdasonde vor Katalysator Bank 1: Signalfehler Brand | Powertrain |
| Proton | P1146 | Mass Air Low Sensor-G70 Supply Voltage Brand | Powertrain |
| Renault | P1146 | No description available | Powertrain |
| Saab | P1146 | Heated O2 Sensor 2 Brand | Powertrain |
| Subaru | P1146 | Manifold Pressure Sensor Circuit Range/Performance Problem Brand | Powertrain |
| Suzuki | P1146 | No description available | Powertrain |
| Tata | P1146 | NLS Signal Incoherent 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 6
These 7-character codes are manufacturer-specific variants of P1146 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P114600 | Die Spannungsversorgung der Injektorgruppe 'A' hat einen elektrischen Fehler. Brand | Powertrain |
| SsangYong | P114602 | Motor Control Unit (MCU) discharge function error Brand | Powertrain |
| Peugeot | P114620 | No description available | Powertrain |
| Peugeot | P114621 | No description available | Powertrain |
| Peugeot | P114622 | No description available | Powertrain |
| Peugeot | P114623 | No description available | Powertrain |
6Related codes
Browse Pxxx codes or P114xx codes.