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.
P2BC5:00OBC Contactor (+) system: Stuck OnManufacturer communications
4Original wording in English
MERCEDES-BENZ
Reported code forms P2BC500
Complaint Vehicle will not start after DC charging Warning in the instrument cluster related to High‐voltage on board electrical system The following fault codes related to stuck contactor can be found in the High…
MAZDA
Reported code forms P2BC5:00
DESCRIPTION Some vehicles may experience the warning message "A 'Hybrid System Malfunction. Have the Vehicle Inspected' and DTC P2BC5:00 (OBC contactor (+) stuck ON) and/or other DTCs listed below may be stored. If this…
MERCEDES-BENZ
Reported code forms P2BC500
Vehicle not starting after DC charging Complaint Vehicle will not start after DC charging Warning in the instrument cluster related to High-voltage on board electrical system The following fault codes related to stuck…
MERCEDES-BENZ
Reported code forms P2BC500
Complaint Vehicle will not start after DC charging Warning in the instrument cluster related to High-voltage on board electrical system The following fault codes related to stuck contactor can be found in the High…
Check vehicle applicability
48A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Mazda | CX-70 | 2026 |
| Mazda | CX-70 | 2025 |
| Mazda | CX-90 | 2026 |
| Mazda | CX-90 | 2025 |
| Mazda | CX-90 | 2024 |
| Mercedes-Benz | AMG E 53 4MATIC+ WAGON | 2025 |
| Mercedes-Benz | AMG E 53 E 4MATIC+ | 2025 |
| Mercedes-Benz | AMG E53E | 2023 |
| Mercedes-Benz | AMG E53E 4MATIC | 2027 |
| Mercedes-Benz | AMG E53E 4MATIC WAGON | 2027 |
| Mercedes-Benz | AMG GLC63 S E | 2025 |
| Mercedes-Benz | AMG GLC63 S E 4MATIC+ | 2026 |
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.