PowertrainP0AA3
CautionSeverity: Caution - get it checked when you can
Hybrid Battery Negative Contactor Circuit
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 diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.
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 24
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P0AA3 | Cylinder 7. Injection Limitation Brand | Powertrain |
| BAIC Motor | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| Mercedes-Benz | P0AA3 | No description available | Powertrain |
| BYD | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| Chery | P0AA3 | Negative contactor sticking fault Brand | Powertrain |
| Daewoo | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| DFFS | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| DFFX | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| DFXK | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| EOBD | P0AA3 | Hybrid/EV batteri negativ kontaktorkreds Brand | Powertrain |
| Geely | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| GM | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| Great Wall | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| Hafei | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| Honda | P0AA3 | No description available | Powertrain |
| Hyundai | P0AA3 | No description available | Powertrain |
| Isuzu | P0AA3 | No description available | Powertrain |
| Land Rover | P0AA3 | CAT-L -66 Special Brand | Powertrain |
| Peugeot | P0AA3 | No description available | Powertrain |
| Proton | P0AA3 | No description available | Powertrain |
| Saab | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| MG (SAIC) | P0AA3 | Hybrid Battery Negative Contactor Circuit Brand | Powertrain |
| Suzuki | P0AA3 | No description available | Powertrain |
| Toyota | P0AA3 | Hybrid Battery Negative Contactor Circuit 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 12
These 7-character codes are manufacturer-specific variants of P0AA3 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P0AA311 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. Circuit Short To Ground. Brand | Powertrain |
| Mercedes-Benz | P0AA312 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. Circuit Short To Battery. Brand | Powertrain |
| Mercedes-Benz | P0AA313 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. There is an open circuit. Brand | Powertrain |
| Mercedes-Benz | P0AA314 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. There is a short circuit to ground or an open circuit. Brand | Powertrain |
| Mercedes-Benz | P0AA316 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. The limit value for electrical voltage has not been attained. Brand | Powertrain |
| Mercedes-Benz | P0AA317 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. The limit value for electrical voltage has been exceeded. Brand | Powertrain |
| Mercedes-Benz | P0AA31C | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. Circuit Voltage Out of Range. Brand | Powertrain |
| Mercedes-Benz | P0AA372 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. Actuator Stuck Open. Brand | Powertrain |
| Mercedes-Benz | P0AA373 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. Actuator Stuck Closed. Brand | Powertrain |
| Mercedes-Benz | P0AA374 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. Actuator Slipping. Brand | Powertrain |
| Mercedes-Benz | P0AA385 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. There is a signal above the permissible limit value. Brand | Powertrain |
| Mercedes-Benz | P0AA386 | The contact 'Negative terminal' of the contactor in the hybrid/high-voltage battery has an electrical fault. Signal Invalid. Brand | Powertrain |
6Related codes
Browse Pxxx codes or P0AAxx codes.