PowertrainP1251
CautionSeverity: Caution - get it checked when you can
Re-conveying pump circuit open
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 28
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P1251 | No description available | Powertrain |
| BAIC Motor | P1251 | Inlet metering valve current correction value below limit Brand | Powertrain |
| BYD | P1251 | Linear oxygen sensor grounding wire short to ground Brand | Powertrain |
| Chery | P1251 | Cold Start Injector (N108) Short to Plus Brand | Powertrain |
| Chrysler | P1251 | No description available | Powertrain |
| Daewoo | P1251 | Throttle Position Brand | Powertrain |
| Daihatsu | P1251 | VN turbo system Brand | Powertrain |
| DFFS | P1251 | No description available | Powertrain |
| DFXK | P1251 | Cold Start Injector (N108) Short to Plus Brand | Powertrain |
| EOBD | P1251 | P4-spill/V krug Brand | Powertrain |
| Geely | P1251 | Cold Start Injector (N108) Short to Plus Brand | Powertrain |
| GM | P1251 | Throttle Position Brand | Powertrain |
| Great Wall | P1251 | Start Of Injection Solenoid -N108 Circ Short To B+ Brand | Powertrain |
| Hafei | P1251 | Common rail pressure M/V1 Brand | Powertrain |
| Holden | P1251 | No description available | Powertrain |
| Honda | P1251 | No description available | Powertrain |
| Isuzu | P1251 | No description available | Powertrain |
| Land Rover | P1251 | No description available | Powertrain |
| Mahindra | P1251 | No description available | Powertrain |
| Mitsubishi | P1251 | Common rail pressure M/V1 Brand | Powertrain |
| Opel | P1251 | Throttle Position Brand | Powertrain |
| Perodua | P1251 | VN turbo system Brand | Powertrain |
| Peugeot | P1251 | No description available | Powertrain |
| Porsche | P1251 | No description available | Powertrain |
| Proton | P1251 | Common rail pressure M/V1 Brand | Powertrain |
| Saab | P1251 | Throttle Position Brand | Powertrain |
| SWM Motor | P1251 | Linear oxygen sensor grounding wire short to ground Brand | Powertrain |
| Toyota | P1251 | Re-conveying pump circuit open 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 3
These 7-character codes are manufacturer-specific variants of P1251 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P125100 | DebEvent TypError Prio3 2Trip - BW Brand | Powertrain |
| Sprinter | P125100 | Ausfall der CAN Botschaft - gefilterte Aussentemperatur vom Klimasteuergerät Brand | Powertrain |
| Peugeot | P125144 | No description available | Powertrain |
6Related codes
Browse Pxxx codes or P125xx codes.