PowertrainP3056
CautionSeverity: Caution - get it checked when you can
DC/DC converter output voltage 2 performance
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 20
| Brand | Code | Description | System |
|---|---|---|---|
| BAIC Motor | P3056 | KL50r wire short circuit to Battery Brand | Powertrain |
| BYD | P3056 | Starter status feedback signal short to power Brand | Powertrain |
| Chery | P3056 | Starter status feedback circuit fault Brand | Powertrain |
| Daewoo | P3056 | No description available | Powertrain |
| DFFS | P3056 | Fault: the key start switch feedback voltage signal wire (KL50r) circuit short to power Brand | Powertrain |
| DFFX | P3056 | Starter status feedback circuit failure Brand | Powertrain |
| DFXK | P3056 | Exhaust Pressure Sensor 2: Short to Ground Brand | Powertrain |
| EOBD | P3056 | Ureavæsketrykk Brand | Powertrain |
| Geely | P3056 | Exhaust Pressure Sensor 2: Short to Ground Brand | Powertrain |
| GM | P3056 | No description available | Powertrain |
| Holden | P3056 | DC/DC Converter Output Voltage 2 Performance Brand | Powertrain |
| Land Rover | P3056 | Park Lock Actuator Phase L1/L2/L3 - Open Circuit Brand | Powertrain |
| Maserati | P3056 | Intake Manifold Pressure Sensor 1 Correlation High Brand | Powertrain |
| Mitsubishi | P3056 | Each Cell VOLT. difference Brand | Powertrain |
| Opel | P3056 | No description available | Powertrain |
| Peugeot | P3056 | No description available | Powertrain |
| Proton | P3056 | Each Cell VOLT. difference Brand | Powertrain |
| Saab | P3056 | No description available | Powertrain |
| Tata | P3056 | No description available | Powertrain |
| Toyota | P3056 | DC/DC converter output voltage 2 performance 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.
5Related codes
Browse Pxxx codes or P305xx codes.