What is a Jaguar XJL X351 airbag control unit?
The Jaguar XJL X351 airbag control unit is the central safety unit that instantly activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors all impact sensors, stores relevant crash data, and thus ensures the proper and life-saving function of all airbag modules in the vehicle.
This essential module, also known as the SRS module, serves as a passive safety component and is essential for protecting the occupants.
It processes real-time information from acceleration and impact sensors to assess the severity of an impact and initiate the necessary safety measures.
Why is the Jaguar XJL X351 airbag control unit defective?
A Jaguar XJL X351 airbag control unit can fail for a variety of reasons, commonly due to water damage, electrical surges, internal software errors, or after an accident when crash data has been irreversibly stored. A failure leads to the deactivation of the airbag system and often the illumination of the airbag warning light.
Because moisture can penetrate the housing, internal circuits corrode, which impairs the function of the control unit.
Unexpected voltage spikes in the vehicle electrical system can permanently damage electronic components, which can lead to module failure.
After an accident, the control unit stores crash data, which requires a reset or replacement of the module for Jaguar XJL X351 airbag control unit repair .
Internal memory errors or faulty firmware can also prevent the airbag control unit from working, which requires professional diagnosis.
Common error codes for Jaguar XJL X351 airbag control unit repair
During a Jaguar XJL X351 airbag control unit repair, specific error codes will occur that directly indicate problems within the control unit or its primary interfaces. These codes help pinpoint the exact cause of the malfunction and provide precise diagnoses, which are essential for a successful repair.
- B0001-13 : Driver Frontal Level 1 Deployment Control → This code indicates an internal error in the driver airbag deployment control, which comes directly from the airbag ECU.
- B1001-13 : Right Hood Airbag Deployment Control → This code signals a fault in the deployment control of the right hood airbag, which is monitored by the airbag ECU.
- B1003-13 : Left Hood Airbag Deployment Control → A problem with the left hood airbag deployment control is indicated by this code in the airbag ECU.
- B1004-87 : Right front impact classification sensor → This trouble code indicates a malfunction of the right front impact classification sensor, the data processing of which is part of the airbag control unit.
Reading these error codes requires specialized diagnostic tools, such as the JLR SDD, to achieve accurate results.
Not all airbag error codes are control unit-specific; those listed here focus on the main module itself and exclude sensor errors.
What part numbers are available for Jaguar XJL X351 airbag control unit repair?
For Jaguar XJL X351 airbag control unit repairs, the OEM part numbers AH42-14B588-AA and the alternative number 28212865 are relevant, as these are considered verified original parts for the 2009-2015 model year. An exact part number match is crucial for the correct function and compatibility of the replacement part.
The primary OEM part number is AH42-14B588-AA, which comes directly from Jaguar and has been fully confirmed for the XJ X351.
An alternative number, also from Jaguar, used for the same airbag control unit is 28212865.
These numbers are specifically valid for the airbag control unit (SRS module) of the Jaguar XJ X351 models built between 2009 and 2015.
It is highly advisable to check the part number directly on the defective control unit before purchasing to avoid making incorrect purchases when repairing the Jaguar XJL X351 airbag control unit .
Can I repair a Jaguar XJL X351 airbag control unit myself?
Due to its safety-critical function and the complexity of the system, a Jaguar XJL X351 airbag control unit should not be repaired by yourself. Errors can compromise or prevent airbag deployment. A qualified specialist workshop is essential for a safe and professional Jaguar XJL X351 airbag control unit repair .
Working on the airbag system poses a risk of explosion and requires special knowledge and tools to ensure safe handling.
After repair or replacement, the new or repaired control unit must be correctly adapted to the vehicle and coded, which is only possible with specialized software.
Malfunctions following improper Jaguar XJL X351 airbag control unit repair can pose serious safety risks and lead to expensive consequential damage.
Professional workshops have the necessary diagnostic equipment and expertise to safely handle these sensitive components and restore full functionality.