What is a Jaguar XJ Supersport X351 airbag control unit?
The Jaguar XJ Supersport X351 airbag control unit is the central safety unit in the vehicle, activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of a collision. It continuously monitors sensors, stores relevant crash data, and ensures the proper functioning of all airbag modules and other safety components to ensure maximum occupant safety.
This highly complex system acts as the brain of passive safety and is essential for protecting vehicle occupants in the event of a collision.
It communicates continuously with other vehicle systems to check the status of safety devices and respond immediately if necessary.
Why is the Jaguar XJ Supersport X351 airbag control unit defective?
The Jaguar XJ Supersport X351 airbag control unit can fail for a variety of reasons, often after an accident, as it stores crash information, necessitating repair or a reset. Internal electronic defects, communication problems with other vehicle systems, or age-related wear and tear can also lead to failure, requiring professional diagnosis.
A common reason for a defective airbag control unit is the storage of crash data after an accident, which blocks the component.
Malfunctions can also be caused by power surges, software errors or a failure of the internal electronics, which makes airbag control unit repair unavoidable.
Symptoms of a defect are often an illuminated airbag warning light or communication errors, which suggest immediate inspection at the workshop.
Common error codes for Jaguar XJ Supersport X351 airbag control unit repair
When diagnosing a faulty Jaguar XJ Supersport X351 airbag control unit, specific error codes may occur that indicate communication issues, internal system errors, or necessary repairs. These codes are crucial for precisely identifying the problem and successfully repairing the airbag control unit, as they narrow down the cause of the failure.
Some of the most common codes that indicate problems with the Jaguar XJ Supersport X351 Restraints Control Module (RCM) include:
- B2291: Airbag control unit error / flash code note → Indicates an internal error or the need to reset after an event.
- U0155-87: Communication error with Restraints Control Module (RCM) → Indicates a faulty or missing communication between the airbag control module and other systems.
- B1000: Control unit communication error → Signals general problems in the data transmission of the airbag control unit within the vehicle network.
These error codes are manufacturer-specific and often require special diagnostic tools for correct reading and correction in the workshop.
What part numbers are available for the Jaguar XJ Supersport X351 airbag control unit repair?
The exact OEM part numbers for the Jaguar XJ Supersport X351 airbag control unit are not publicly available and vary depending on the year of manufacture and specific vehicle equipment. To find the correct part number for a necessary airbag control unit repair, it is essential to compare it with a Jaguar original parts catalog or read the part number directly from the installed control unit.
General suppliers such as Bosch, Continental, Siemens and Autoliv manufacture airbag control units, but these are given OEM-specific Jaguar numbers.
In common online shops or on sales platforms, you often only find refurbished or used control units, the compatibility of which for the XJ Supersport X351 is not always guaranteed.
Therefore, for precise identification and successful airbag control unit repair, access to a professional parts catalog database such as TecDoc or a Jaguar service center is advisable.