BodyB120A
CautionSeverity: Caution - get it checked when you can
Passenger Seat Cushion Temperature Sensor
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?
Do not assume this code is safe to drive. If it concerns the brakes, brake vacuum, charging/alternator, engine oil or coolant, have it diagnosed before driving. Airbags or seat belts may not work in a crash, and a brake or charging fault can leave the car unsafe or stranded. For convenience systems (windows, locks, climate), have it checked when convenient.
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 17
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | B120A | No description available | Body |
| Chery | B120A | Acceleration sensor (only for ESP (electronic stability program), supplier eol mode) calibration lost Brand | Body |
| Daewoo | B120A | No description available | Body |
| DFFS | B120A | Collision danger alarm function failure Brand | Body |
| Geely | B120A | Front Passenger Igniter Grounding Brand | Body |
| GM | B120A | No description available | Body |
| Holden | B120A | No description available | Body |
| Honda | B120A | No description available | Body |
| Land Rover | B120A | Passenger Seat Cushion Temperature Sensor Brand | Body |
| Mitsubishi | B120A | Security alarm siren error Brand | Body |
| Opel | B120A | No description available | Body |
| Peugeot | B120A | No description available | Body |
| Proton | B120A | Security alarm siren error Brand | Body |
| Saab | B120A | No description available | Body |
| Sprinter | B120A | No description available | Body |
| SWM Motor | B120A | sunlight sensor circuit is open or short circuit to the power supply Brand | Body |
| Tata | B120A | Rear Wash Motor Circuit Short To Battery Brand | 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 11
These 7-character codes are manufacturer-specific variants of B120A and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | B120A01 | Der Temperatursensor 'Sitzwangen der Sitzflche' hat Funktionsstörung. Es liegt ein allgemeiner elektrischer Fehler vor. Brand | Body |
| Mahindra | B120A11 | B-Pillar Left SRSU Short To Ground Brand | Body |
| Mahindra | B120A12 | Co - Driver Srsu - Short To Battery Brand | Body |
| Mahindra | B120A13 | B-Pillar Left SRSU - Open Circuit Brand | Body |
| Mahindra | B120A2B | Left SRSU Short To Another Remote Sensor Brand | Body |
| Mahindra | B120A55 | Co-Driver Srsu Configuration Error Brand | Body |
| Mahindra | B120A64 | B-Pillar Left SRSU Configuration Error Brand | Body |
| Mahindra | B120A81 | B-Pillar Left SRSU Communication Error Brand | Body |
| Mahindra | B120A87 | Co-Driver Srsu Communication Error Brand | Body |
| Mahindra | B120A96 | B-Pillar Left SRSU Internal Error Brand | Body |
| Mahindra | B120A99 | B-Pillar Left SRSU Sampling Rate Fault Brand | Body |
6Related codes
Browse Bxxx codes or B120xx codes.