BodyB122A
CautionSeverity: Caution - get it checked when you can
Right seat cushion blower speed sensor
Key terms: Control module: a small computer that runs one part of the car
1What it means in plain English
The coolant temperature sensor circuit is open, so the computer may not know the true engine temperature.
2Common causes
- Faulty coolant temperature sensor
- Damaged or disconnected wiring
- Corroded connector
- Low coolant level
- Body control module fault
3Can I drive?
Watch the temperature gauge. Stop safely and let the engine cool if the gauge climbs, steam appears, or a red warning light comes on; otherwise have it diagnosed soon.
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 11
| Brand | Code | Description | System |
|---|---|---|---|
| BYD | B122A | Coolant temperature sensor circuit open Brand | Body |
| Daewoo | B122A | No description available | Body |
| Geely | B122A | Right Side Impact Sensor Internal Fault Brand | Body |
| GM | B122A | No description available | Body |
| Holden | B122A | No description available | Body |
| Honda | B122A | No description available | Body |
| Land Rover | B122A | Right seat cushion blower speed sensor Brand | Body |
| Opel | B122A | No description available | Body |
| Peugeot | B122A | No description available | Body |
| Proton | B122A | No description available | Body |
| Saab | B122A | 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 2
These 7-character codes are manufacturer-specific variants of B122A and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | B122A49 | Current sensor 1 of the front electric booster heater has a malfunction. There is an internal electrical fault. Brand | Body |
| Mercedes-Benz | B122A64 | Current sensor 1 of the front electric booster heater has a malfunction. There is an implausible signal. Brand | Body |
6Related codes
Browse Bxxx codes or B122xx codes.