PowertrainP1479
CautionSeverity: Caution - get it checked when you can
Brake boost vacuum system: mechanical failure; Defective
Key terms: Boost pressure: extra air pressure made by a turbo or supercharger · 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?
The braking system may be affected. Have it checked promptly; if the pedal feels abnormal, the car pulls when braking, or a brake warning light is on, stop safely.
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 19
| Brand | Code | Description | System |
|---|---|---|---|
| BAIC Motor | P1479 | Brake vacuum pressure sensor signal implausible Brand | Powertrain |
| Chery | P1479 | Brake vacuum booster pump failure Brand | Powertrain |
| Chrysler | P1479 | Implausible Data Received From Shifter - Mechanical Failure Brand | Powertrain |
| Daewoo | P1479 | Trans Fan Relay Circ Brand | Powertrain |
| DFFS | P1479 | Brake vacuum pump runs implausible Brand | Powertrain |
| DFXK | P1479 | Brake vacuum booster pump failure Brand | Powertrain |
| EOBD | P1479 | Ağ verisi Brand | Powertrain |
| Fiat | P1479 | Implausible data received from shifter - Mechanical failure Brand | Powertrain |
| Geely | P1479 | Braking vacuum booster pump failure Brand | Powertrain |
| GM | P1479 | Trans Fan Relay Circ Brand | Powertrain |
| Great Wall | P1479 | O2 sensor oxygen value lower than maximum threshold Brand | Powertrain |
| Holden | P1479 | Particulate Matter Sensor Sensitivity Factor Performance Brand | Powertrain |
| Land Rover | P1479 | High Fan Control Primary Circuit Brand | Powertrain |
| Maserati | P1479 | data received from shifter implausible - mechanical fault Brand | Powertrain |
| Opel | P1479 | Trans Fan Relay Circ Brand | Powertrain |
| Peugeot | P1479 | No description available | Powertrain |
| Saab | P1479 | Trans Fan Relay Circ Brand | Powertrain |
| MG (SAIC) | P1479 | BKV Pressure non-plausible Brand | Powertrain |
| Volkswagen | P1479 | Brake boost vacuum system: mechanical failure; Defective 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 P147xx codes.