BodyB1901
CautionSeverity: Caution - get it checked when you can
Communication error of compass
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 30
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | B1901 | No description available | Body |
| BYD | B1901 | Communication error of compass Brand | Body |
| Chery | B1901 | Communication error of compass Brand | Body |
| Daewoo | B1901 | No description available | Body |
| Daihatsu | B1901 | Front seat D side pretensioner disconnect Brand | Body |
| DFFS | B1901 | rear camera error Brand | Body |
| DFFX | B1901 | Communication error of compass Brand | Body |
| Geely | B1901 | Communication error of compass Brand | Body |
| GM | B1901 | No description available | Body |
| Great Wall | B1901 | Communication error of compass Brand | Body |
| Hafei | B1901 | Communication error of compass Brand | Body |
| Holden | B1901 | No description available | Body |
| Honda | B1901 | No description available | Body |
| Hyundai | B1901 | No description available | Body |
| Isuzu | B1901 | No description available | Body |
| Land Rover | B1901 | No description available | Body |
| Mahindra | B1901 | Circuit Short To Ground or Vbatt or Open Brand | Body |
| Maserati | B1901 | No description available | Body |
| Mitsubishi | B1901 | Communication error of compass Brand | Body |
| Nissan | B1901 | No description available | Body |
| Opel | B1901 | No description available | Body |
| Perodua | B1901 | Front seat D side pretensioner disconnect Brand | Body |
| Peugeot | B1901 | No description available | Body |
| Proton | B1901 | Communication error of compass Brand | Body |
| Saab | B1901 | No description available | Body |
| MG (SAIC) | B1901 | Driver Airbag Short to Battery Brand | Body |
| Sprinter | B1901 | No description available | Body |
| Subaru | B1901 | No description available | Body |
| Suzuki | B1901 | Internal Control Module Memory Check Sum Error Brand | Body |
| Toyota | B1901 | 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 3
These 7-character codes are manufacturer-specific variants of B1901 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | B190129 | signal invalid - DCDC input circuit 2 - signal invalid Brand | Body |
| Smart | B190129 | No description available | Body |
| Sprinter | B190129 | signal invalid - DCDC input circuit 2 - signal invalid Brand | Body |
6Related codes
Browse Bxxx codes or B190xx codes.