What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0556Brake Booster Pressure Sensor Circuit PerformanceP0556Brake Booster Pressure Sensor Circuit PerformanceP0556Brake Booster Pressure Sensor Circuit PerformanceManufacturer communications
47Original wording in English
RAM
Reported code forms P0556
Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle exhibit/set SYMPTOM: one or more of the following Diagnostic Trouble Codes (DTCs):…
AUDI
Reported code forms P055600
This bulletin provides information when the MIL is on; DTC P258B00 or P055600.
AUDI
Reported code forms P055600
This bulletin provides information for when the MIL Is illuminated; DTC P258B00 or P055600.
RAM
Reported code forms P0556
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further…
RAM
Reported code forms P0556
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further…
RAM
Reported code forms P0556
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further…
Check vehicle applicability
52A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | Q3 | 2025 |
| Audi | Q3 | 2024 |
| Audi | Q3 | 2023 |
| Audi | Q3 | 2022 |
| Audi | Q3 | 2021 |
| Dodge | DURANGO | 2017 |
| Dodge | DURANGO | 2016 |
| Jeep | CHEROKEE | 2017 |
| Jeep | GRAND CHEROKEE | 2017 |
| Jeep | GRAND CHEROKEE | 2016 |
| Porsche | PANAMERA S E-HYBRID | 2013 |
| Porsche | PANAMERA S E-HYBRID | 2012 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.