PowertrainP1254
CautionSeverity: Caution - get it checked when you can
Fuel consumption signal Short to B+
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 24
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P1254 | No description available | Powertrain |
| BYD | P1254 | Linear oxygen sensor Nernst voltage circuit short to ground Brand | Powertrain |
| Chery | P1254 | Fuel Consumption Signal Short To B+ Brand | Powertrain |
| Daewoo | P1254 | Fuel consumption signal Short to B+ Brand | Powertrain |
| DFFS | P1254 | HTCU CAN signal reception failure Brand | Powertrain |
| DFXK | P1254 | Fuel Consumption Signal: Short to Plus Brand | Powertrain |
| EOBD | P1254 | Roetfilter Brand | Powertrain |
| Ford | P1254 | No description available | Powertrain |
| Geely | P1254 | Fuel Consumption Signal Short To B+ Brand | Powertrain |
| GM | P1254 | Fuel consumption signal Short to B+ Brand | Powertrain |
| Great Wall | P1254 | Fuel Consumption Signal Short To B+ Brand | Powertrain |
| Holden | P1254 | No description available | Powertrain |
| Isuzu | P1254 | No description available | Powertrain |
| Land Rover | P1254 | No description available | Powertrain |
| Mahindra | P1254 | No description available | Powertrain |
| Mazda | P1254 | No description available | Powertrain |
| Mitsubishi | P1254 | No description available | Powertrain |
| Opel | P1254 | Fuel consumption signal Short to B+ Brand | Powertrain |
| Peugeot | P1254 | No description available | Powertrain |
| Porsche | P1254 | No description available | Powertrain |
| Proton | P1254 | Fuel Consumption Signal Short To B+ Brand | Powertrain |
| Saab | P1254 | Fuel consumption signal Short to B+ Brand | Powertrain |
| SWM Motor | P1254 | Linear oxygen sensor Nernst voltage circuit short to ground Brand | Powertrain |
| Tata | P1254 | Rail Pressure Control - Positive Error 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 7
These 7-character codes are manufacturer-specific variants of P1254 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P125400 | DebTime TypEvent Prio5 NonOBD Brand | Powertrain |
| Sprinter | P125400 | Nachrichtenübertragung Aussenluftemperatursensor gestört Brand | Powertrain |
| SsangYong | P125400 | RPC state: IMV only - rail pressure error > positive max error threshold Brand | Powertrain |
| SsangYong | P125401 | RPC state: rail discharge regulation - rail pressure error > positive max error threshold Brand | Powertrain |
| Peugeot | P125474 | No description available | Powertrain |
| Peugeot | P125490 | No description available | Powertrain |
| Peugeot | P125491 | No description available | Powertrain |
6Related codes
Browse Pxxx codes or P125xx codes.