PowertrainP06B4
SeriousSeverity: Serious - have it checked soon
Sensor Power Supply B Circuit Low
Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions
1What it means in plain English
The engine computer or one of its output circuits has a fault.
2Common causes
- Engine control module fault
- Power or ground connection problem
- Low battery or charging voltage
- Wiring short or open circuit
- Software or memory fault
3Can I drive?
If the engine runs normally, drive carefully to a workshop for diagnosis. If it runs badly, stalls, or will not restart, have the car towed.
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 28
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| BAIC Motor | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| Mercedes-Benz | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| BYD | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| Chery | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| Daewoo | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| DFFS | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| DFFX | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| DFXK | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| EOBD | P06B4 | Sensorvoeding 'B' circuit laag Brand | Powertrain |
| Geely | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| GM | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| Great Wall | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| Hafei | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| Holden | P06B4 | Sensor Supply Voltage Circuit 2 Low Voltage Brand | Powertrain |
| Honda | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| Hyundai | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| Isuzu | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| Land Rover | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| Mitsubishi | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| Nissan | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| Opel | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| Peugeot | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| Proton | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| Saab | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| MG (SAIC) | P06B4 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| Subaru | P06B4 | Sensor Power Supply B Circuit Low SAE | Powertrain |
| Toyota | P06B4 | Sensor power supply 'B' circuit low 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 3
These 7-character codes are manufacturer-specific variants of P06B4 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P06B400 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
| Mercedes-Benz | P06B411 | Der Ausgang 2 für Spannungsversorgung der Sensoren hat Kurzschluss nach Masse. Brand | Powertrain |
| Mercedes-Benz | P06B414 | Sensor Power Supply 'B' Circuit Low Brand | Powertrain |
6Related codes
Browse Pxxx codes or P06Bxx codes.