BodyB1056
CautionSeverity: Caution - get it checked when you can
Relay module lost communication with MICU
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 26
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | B1056 | No description available | Body |
| Mercedes-Benz | B1056 | No description available | Body |
| BYD | B1056 | R.A/M damper travel too small Brand | Body |
| Chery | B1056 | ECU internal fault Brand | Body |
| Daewoo | B1056 | Driver-Side-Airbag inflation Brand | Body |
| DFFS | B1056 | Passenger curtain airbag resistance high Brand | Body |
| DFFX | B1056 | R.A/M damper travel too small Brand | Body |
| DFXK | B1056 | Driver side front impact sensor: real time offset fault Brand | Body |
| Geely | B1056 | R.A/M damper travel too small Brand | Body |
| GM | B1056 | No description available | Body |
| Great Wall | B1056 | R.A/M damper travel too small Brand | Body |
| Hafei | B1056 | R.A/M damper travel too small Brand | Body |
| Holden | B1056 | Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Ground Brand | Body |
| Honda | B1056 | Relay module lost communication with MICU Brand | Body |
| Land Rover | B1056 | No description available | Body |
| Mahindra | B1056 | TPMS: FL Tire Low Pressure Brand | Body |
| Maserati | B1056 | No description available | Body |
| Mitsubishi | B1056 | R.A/M damper travel too small Brand | Body |
| Opel | B1056 | No description available | Body |
| Peugeot | B1056 | No description available | Body |
| Proton | B1056 | R.A/M damper travel too small Brand | Body |
| Saab | B1056 | No description available | Body |
| MG (SAIC) | B1056 | Crash Side Driver recorded Brand | Body |
| Sprinter | B1056 | No description available | Body |
| Suzuki | B1056 | Passenger Seat Belt Pretensioner Circuit Low Resistance Brand | Body |
| Tata | B1056 | 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 B1056 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | B105649 | Temperature sensor 5 of the refrigerant compressor for the roof-mounted air conditioning system has a malfunction. There is an internal electrical fault. Brand | Body |
| Mercedes-Benz | B105664 | Temperature sensor 5 of the refrigerant compressor for the roof-mounted air conditioning system has a malfunction. There is an implausible signal. Brand | Body |
6Related codes
Browse Bxxx codes or B105xx codes.