BodyB1211
CautionSeverity: Caution - get it checked when you can
Driver safety belt retractor pretensioner deployment control
Key terms: Control module: a small computer that runs one part of the car
1What it means in plain English
A body system has a fault. Depending on the make, this range can include airbags and seat belts, windows, locks and climate control, and also charging, brake, oil or coolant sensors.
2Common causes
- Wiring or connector fault
- Faulty sensor or switch
- Water or corrosion in a connector
- Control module fault
- Low battery voltage
3Can I drive?
The airbag may not deploy in a crash. Have it checked by a qualified technician; do not work on airbag wiring yourself.
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 | B1211 | No description available | Body |
| Mercedes-Benz | B1211 | No description available | Body |
| BYD | B1211 | Radiator temperature sensor short circuit Brand | Body |
| Chery | B1211 | Seatbelt squibbed Brand | Body |
| Daewoo | B1211 | No description available | Body |
| DFFS | B1211 | No description available | Body |
| Geely | B1211 | Interior Top Light Short to Battery Fault Brand | Body |
| GM | B1211 | No description available | Body |
| Holden | B1211 | System Voltage Brand | Body |
| Honda | B1211 | No description available | Body |
| Hyundai | B1211 | No description available | Body |
| Land Rover | B1211 | Driver safety belt retractor pretensioner deployment control Brand | Body |
| Opel | B1211 | No description available | Body |
| Peugeot | B1211 | No description available | Body |
| Proton | B1211 | No description available | Body |
| Saab | B1211 | No description available | Body |
| MG (SAIC) | B1211 | ABS Actual Tyre Rolling Circ Out Of Range Brand | Body |
| Smart | B1211 | No description available | Body |
| Sprinter | B1211 | No description available | Body |
| Suzuki | B1211 | Serial communication problem between OCM and SDM Brand | Body |
| SWM Motor | B1211 | The temperature damper is blocked Brand | Body |
| Tata | B1211 | DIS EEPROM Not Programmed Brand | Body |
| Toyota | B1211 | No description available | Body |
| Volkswagen | B1211 | No description available | Body |
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 13
These 7-character codes are manufacturer-specific variants of B1211 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Hyundai | B121100 | If abnormal Front Left Sensor operation signal is detected, BCM sets DTC Brand | Body |
| SsangYong | B121100 | Chinching motor overcurrent Brand | Body |
| Mercedes-Benz | B121101 | Die Sitzbelftung 'Sitzflche' hat Funktionsstörung. Es liegt ein allgemeiner elektrischer Fehler vor. Brand | Body |
| Mahindra | B121101 | Driver Knee Airbag - Cross Connect Brand | Body |
| Mahindra | B121111 | Driver Knee Airbag - Short To Ground Brand | Body |
| Mahindra | B121112 | Driver Knee Airbag - Short To Battery Brand | Body |
| Mahindra | B121113 | Driver Knee Airbag - High Resistance Brand | Body |
| Mahindra | B121119 | Driver Knee Airbag - Cross Connect Brand | Body |
| SsangYong | B121119 | Chinching motor overcurrent Brand | Body |
| Mahindra | B12111A | Driver Knee Airbag - Low Resistance Brand | Body |
| Mahindra | B12111B | Driver Knee Airbag - High Resistance Brand | Body |
| Mahindra | B121155 | Driver Knee Airbag Configuration Error Brand | Body |
| Mahindra | B121164 | Driver Knee Airbag Unexpected Squib Brand | Body |
6Related codes
Browse Bxxx codes or B121xx codes.