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.
P0AA1Contactor stuck closed related to the HV battery could be set and the error message “Service Charging System” could appear on the clusterManufacturer communications
1Original wording in English
MASERATI
Reported code forms P0AA1
Certain Maserati Grecale BEV (M182) MY25 listed in MODISCS+ are involved in a Customer Service Notification (CSN) concerning the BPCM (Battery Pack Control Module) software update. Due to the DTC matrix not being…
Check vehicle applicability
1A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Maserati | GRECALE FOLGORE | 2025 |
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.