PowertrainP1557
SeriousSeverity: Serious - have it checked soon
Brake vacuum system slow leak
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 checked immediately: brakes or brake assistance may be affected. Do not drive if the pedal feels soft or hard, the car pulls when braking, or the brake warning light is on.
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 22
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P1557 | No description available | Powertrain |
| Chery | P1557 | Starter control relay circuit open Brand | Powertrain |
| Daewoo | P1557 | Charge Deviations Brand | Powertrain |
| DFFS | P1557 | Slow leak DTC Brand | Powertrain |
| DFXK | P1557 | Charge Pressure Control: Positive Deviation Brand | Powertrain |
| EOBD | P1557 | Ladeafvigelser Brand | Powertrain |
| Geely | P1557 | Charge Pressure Contr. Positive Deviation Brand | Powertrain |
| GM | P1557 | Charge Deviations Brand | Powertrain |
| Great Wall | P1557 | Charge Pressure Contr. Positive Deviation Brand | Powertrain |
| Honda | P1557 | No description available | Powertrain |
| Land Rover | P1557 | Cylinder 7 injector - circuit range/performance Brand | Powertrain |
| Mitsubishi | P1557 | No description available | Powertrain |
| Nissan | P1557 | No description available | Powertrain |
| Peugeot | P1557 | No description available | Powertrain |
| Porsche | P1557 | No description available | Powertrain |
| Proton | P1557 | Charge Pressure Contr. Positive Deviation Brand | Powertrain |
| Saab | P1557 | Charge Deviations Brand | Powertrain |
| Sprinter | P1557 | No description available | Powertrain |
| Suzuki | P1557 | BAT TMP SEN/CIRC Brand | Powertrain |
| Tata | P1557 | No description available | Powertrain |
| Toyota | P1557 | Brake vacuum system slow leak Brand | Powertrain |
| Volkswagen | P1557 | Charge Pressure Control: Positive Deviation 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 2
These 7-character codes are manufacturer-specific variants of P1557 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P155700 | Startversuch mit blockiertem Motor Brand | Powertrain |
| Sprinter | P155700 | Startversuch mit blockiertem Motor Brand | Powertrain |
6Related codes
Browse Pxxx codes or P155xx codes.