Airbag control unit with part number LR095850

What is the function of the airbag control unit LR095850?

The control unit with part number LR095850 is the central control module for the entire airbag system (Supplemental Restraint System, SRS) in certain Land Rover vehicles. It processes data from various sensors to precisely control and deploy life-saving restraint systems such as airbags and seatbelt pretensioners in the event of a crash.

As the “brain” of the safety system, this module is responsible for managing and coordinating all connected components. Based on incoming sensor data, it determines whether and when airbags should be deployed to ensure occupant protection.

The alternative OEM part number for this component is FK72-14D374-AK.

What defects occur in LR095850?

Defects in the LR095850 control unit are often due to issues in the airbag system’s peripheral components. Common causes include faulty wiring and connectors, defective seat occupancy mats, or malfunctioning sensors that transmit inconsistent or incorrect data to the control unit, triggering an internal error.

A primary source of failure is physical damage to the wiring. Faulty cables between the control unit and SRS components—such as airbags or sensors—can disrupt communication and lead to error messages.

Similarly, damaged connectors within the system caused by corrosion or mechanical stress can result in contact problems, leading to intermittent or permanent failures of individual system components.

Another frequent cause is defective seat occupancy mats. If these mats provide incorrect data about a passenger’s presence, the control unit interprets this as a system fault and activates the SRS warning light.

Finally, faulty sensors themselves—those transmitting acceleration or yaw rate data to the control unit—can also cause malfunctions, as the module’s plausibility checks fail.

How do you recognize a defective LR095850?

The most obvious symptom of a defect in the LR095850 airbag control unit is the persistent illumination of the red SRS warning light on the instrument cluster. This warning indicates an active fault in the restraint system, requiring immediate diagnosis to ensure safety.

The SRS warning light normally extinguishes after a brief self-test upon vehicle startup. If it remains lit continuously, there is a stored fault code indicating a potential issue affecting the overall functionality of the airbag system.

In some cases, communication problems with the control unit may also occur. A diagnostic tool might fail to establish a connection or retrieve valid fault codes, suggesting a serious internal defect within the control unit itself.

In which vehicles is the LR095850 control unit installed?

The LR095850 control unit is primarily used in Land Rover vehicles. It is specifically designed for the Discovery L462 and Discovery Sport L550 model lines—including facelift variants—and covers various engine options and trim levels.

At Airbag24, the part number LR095850 is listed for professional repair in the following models:

Land Rover: Discovery L462, Discovery Sport L550 (2015–2019), as well as the Discovery Sport L550 facelift (from 2019 onward).

Compatibility spans multiple engine variants, including the 2.0 D 4x4 diesel engine (e.g., engine codes AJ200/204DTA), and is tailored for vehicles equipped with automatic transmissions.

How is the LR095850 control unit professionally repaired?

At Airbag24, repairing the LR095850 follows a rigorous process. Following an initial analysis using diagnostic tools, the exact sources of failure are identified. Defective electronic components on the circuit board are then replaced, the software is reprogrammed if necessary, and the unit is thoroughly tested to confirm full functionality. You receive 2 years' statutory liability for defects on the repair.

After submitting the removed control unit, the fault memory is first read to verify the reported defect. This diagnosis determines whether a repair is technically feasible and sufficient, or if replacement is required.

The actual repair process involves overhauling the circuit board. Experienced technicians identify faulty electronic components and replace them with new parts that meet Land Rover’s quality standards.

If needed, the software is subsequently reprogrammed to restore the control unit to its original operating condition.

Upon completion of the repair, all components associated with the airbag system, such as wiring harnesses and connectors, undergo a final inspection. You will receive the control unit back along with a detailed test report.