PowertrainP0A3B
CautionSeverity: Caution - get it checked when you can
Alternator control signal failure
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?
The electrical system may fail and the battery may go flat, risking a stall. If the battery or charging warning light is on, drive straight to a workshop.
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 26
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P0A3B | No description available | Powertrain |
| BAIC Motor | P0A3B | Generator Over Temperature Brand | Powertrain |
| BYD | P0A3B | Generator Over Temperature Brand | Powertrain |
| Chery | P0A3B | Generator Over Temperature Brand | Powertrain |
| Daewoo | P0A3B | Generator Over Temperature Brand | Powertrain |
| DFFS | P0A3B | Generator Over Temperature Brand | Powertrain |
| DFFX | P0A3B | Generator overtemperature Brand | Powertrain |
| DFXK | P0A3B | Generator Over Temperature Brand | Powertrain |
| EOBD | P0A3B | Roinneoir 'A' ró-theas Brand | Powertrain |
| Geely | P0A3B | Generator Over Temperature Brand | Powertrain |
| GM | P0A3B | Generator Over Temperature Brand | Powertrain |
| Great Wall | P0A3B | Generator Over Temperature Brand | Powertrain |
| Hafei | P0A3B | Generator Over Temperature Brand | Powertrain |
| Holden | P0A3B | Generator Overtemperature Brand | Powertrain |
| Honda | P0A3B | No description available | Powertrain |
| Hyundai | P0A3B | No description available | Powertrain |
| Isuzu | P0A3B | No description available | Powertrain |
| Land Rover | P0A3B | No description available | Powertrain |
| Mitsubishi | P0A3B | Alternator temperature Brand | Powertrain |
| Opel | P0A3B | Generator Over Temperature Brand | Powertrain |
| Peugeot | P0A3B | No description available | Powertrain |
| Proton | P0A3B | Alternator temperature Brand | Powertrain |
| Saab | P0A3B | Generator Over Temperature Brand | Powertrain |
| MG (SAIC) | P0A3B | Generator Over Temperature Brand | Powertrain |
| Subaru | P0A3B | No description available | Powertrain |
| Toyota | P0A3B | Alternator control signal failure 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.
5Related codes
Browse Pxxx codes or P0A3xx codes.