What is a Jaguar XFR-S X250 airbag control unit?
The Jaguar XFR-S X250 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules in the vehicle. It is essential for the vehicle's passive safety.
This precise system is responsible for the timely and correct deployment of the airbags and seatbelt pretensioners. It continuously processes signals from various crash sensors inside the vehicle.
As the heart of the restraint system, it is crucial for occupant protection. Proper functioning is therefore essential for the operational safety of the Jaguar XFR-S X250.
Why is the Jaguar XFR-S X250 airbag control unit defective?
A Jaguar XFR-S X250 airbag control unit often fails due to internal malfunctions, overvoltage damage, or corrosion after water ingress. An accident involving airbag deployment also requires repair or replacement, as crash data can be permanently stored in memory. A faulty ground connection can also cause failure.
Damage to internal components such as the microprocessor or flash memory can lead to system errors. The control unit can then no longer perform its vital monitoring and triggering functions.
Voltage problems, such as those caused by a defective battery or alternator, can also damage the sensitive component. This leads to unreliable functions or complete failure of the airbag systems.
After an accident, the control unit stores crash data that prevents the system from continuing to operate safely. In such cases, a specialized **Jaguar XFR-S X250 airbag control unit repair** is essential to restore it to functionality.
Common error codes for Jaguar XFR-S X250 airbag control unit repair
During a Jaguar XFR-S X250 airbag control unit repair, specific error codes often occur. These indicate internal control unit errors, communication problems, or circuit defects in the airbag modules. These codes help diagnose the exact problem that caused the safety system to fail. Typical examples are B-codes or flash codes.
- B1342 → Internal control unit error → Indicates a malfunction of the Restraint Control Module (RCM).
- B1921 → Open circuit/high resistance → Indicates problems with the control module ground connection.
- B1884 → Passenger Airbag Deactivation (PAD) Warning Indicator Error → Affects the monitored PAD warning circuit of the control module.
- B1000 → Control unit communication error → Indicates a faulty communication of the control unit.
- 12 (Flash Code) → Internal control unit flash code error → Indicates an internal fault in the airbag control unit.
- 14 (Flash Code) → Control unit ground circuit error → Indicates an error in the control unit ground circuit.
- 18 (Flash Code) → Passenger Airbag Deactivation Circuit Error → Affects the circuit for the PAD function.
- 19 (Flash Code) → Airbag Circuit Failure – Driver → Indicates a problem in the driver’s side airbag circuit.
- 21 (Flash Code) → Airbag Circuit Failure – Passenger → Indicates a defect in the passenger side airbag circuit.
- 24 (Flash Code) → Internal RCM Error → Confirms an internal malfunction of the Restraint Control Module.
- 53 (Flash Code) → Airbag acoustic warning signal error → Concerns the error display of the acoustic warning signal.
- 54 (Flash Code) → RCM Configuration Error → Indicates an incorrect configuration of the control unit.
What part numbers are available for the Jaguar XFR-S X250 airbag control unit repair?
For the Jaguar XFR-S X250 airbag control unit repair, the OEM part numbers CX23-14D374-AD and its alias DDJ8A are primarily relevant. These are validated for the airbag control unit of the Jaguar XF X250 (model years 2011-2015), although an explicit XFR-S listing is rare among suppliers. Verification with the VIN is always recommended.
The part number CX23-14D374-AD is the official OEM number from Jaguar. It identifies the specific airbag control unit for the models mentioned.
The alias DDJ8A is an internal Jaguar designation for the same component. Both numbers refer to the airbag control unit (SRS/ACU), not to sensors or airbag modules.
There are no widely confirmed supplier numbers from Bosch, Continental, or others for this specific airbag control unit. Therefore, the search for replacement parts or a Jaguar XFR-S X250 airbag control unit repair focuses on the OEM specifications.
How the Jaguar XFR-S X250 Airbag Control Unit Works
The Jaguar XFR-S X250 airbag control unit processes signals from crash sensors to measure impact intensity and deploy the airbags in real time if necessary. It also features comprehensive diagnostics that detect problems in the airbag system and notify the driver via the vehicle information system. These functions are critical for occupant safety.
It continuously receives data from the crash sensors distributed throughout the vehicle. Based on this data, it makes a lightning-fast decision as to whether deployment is necessary.
In addition to activating airbags, it also monitors seatbelt pretensioners and other restraint systems. Proper functioning is crucial to providing maximum protection in an emergency.
Jaguar XFR-S X250 Airbag Control Unit Location and Maintenance
The Jaguar XFR-S X250 airbag control unit is typically mounted under the steering wheel or in the glove compartment and has dedicated connectors for sensors, airbag modules, and vehicle communications. During a Jaguar XFR-S X250 airbag control unit repair, all safety regulations must be strictly observed to ensure proper operation.
The exact location may vary slightly depending on the model year, but is always centrally located in the vehicle interior. This enables optimal communication with all connected components.
It has multiple, vehicle-specific connectors that must be precisely connected to the wiring harness. Incorrect connections can lead to malfunctions or complete failure of the security system.
Special tools and specialist knowledge are essential for repairs or replacements. This is the only way to guarantee the full safety and reliability of the airbag system after a Jaguar XFR-S X250 airbag control unit repair.