What is a Jaguar XJ12 X300 airbag control unit?
The Jaguar XJ12 X300 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It continuously monitors sensors, stores relevant crash data, and ensures the proper functioning of all airbag modules in the vehicle to provide optimal occupant protection in the event of a collision.
This module is specifically designed for the Jaguar XJ X300 series built between 1994 and 1997.
It acts as the brain of the passive safety system and is therefore crucial for vehicle safety.
Why is the Jaguar XJ12 X300 airbag control unit defective?
The Jaguar XJ12 X300 airbag control unit often fails due to aging electronics, stored crash data after an accident, or internal system errors that activate the airbag warning light. Such a malfunction requires urgent diagnosis and Jaguar XJ12 X300 airbag control unit repair to restore full safety functionality.
Internal component failures are common in older electronic components like this.
Storing crash data after an accident also results in the control unit being considered "broken" and no longer functioning until the data is professionally deleted.
These failures can result in the airbag system not being deployed correctly in an emergency.
Common error codes for Jaguar XJ12 X300 airbag control unit repair
When diagnosing a faulty Jaguar XJ12 X300 airbag control unit, the primary codes found are communication error code B1000 and internal error code 24 (RCM internal error). These codes directly indicate a problem with the control unit itself and require specific repair or replacement.
- B1000 → Control unit communication error → The airbag ECU cannot communicate with the diagnostic tool or has internal communication problems.
- 24 → RCM internal error → The Restraint Control Module (airbag control unit) has detected an internal functional error.
Other error codes usually relate to sensors or other airbag components and not directly to the control unit itself.
The correct diagnosis is the first step to a successful Jaguar XJ12 X300 airbag control unit repair.
What part numbers are available for Jaguar XJ12 X300 airbag control unit repair?
For the Jaguar XJ12 X300 airbag control unit repair, two original OEM part numbers are validated as primary references: HJE9680AE and LNA1410VK101. These specific numbers ensure correct compatibility and function in the vehicle, as no external supplier or spare part numbers could be reliably verified.
Part number HJE9680AE is a genuine Jaguar OEM number for the X300 series airbag control unit.
Likewise, LNA1410VK101 is a validated Jaguar OEM part number used for this specific airbag control unit.
Users should focus on these two numbers when searching for replacement parts, as alternative supplier part numbers for this module are missing.
Jaguar XJ12 X300 Airbag Control Unit: Compatibility and Technical Details
The Jaguar XJ12 X300 airbag control unit is fully compatible with Jaguar XJ6, XJ12, and XJR models of the X300 series from 1994 to 1997. It operates as a standalone system, not integrated into the wider vehicle network, and signals malfunctions by illuminating the SRS/airbag warning light in the instrument panel.
The module has two 12-pin connectors, providing a total of 24 pins for connection to the airbag system.
The unit continuously monitors signals from crash sensors to ensure that the airbags are deployed in a timely manner in the event of a collision.
Special diagnostics are required because standard Jaguar diagnostic systems cannot fully read the airbag control unit.
Jaguar XJ12 X300 Airbag Control Unit Installation Location and Maintenance
The Jaguar XJ12 X300 airbag control unit is typically located centrally in the vehicle's interior, often under the dashboard near the center console. Professional maintenance and Jaguar XJ12 X300 airbag control unit repair are crucial to ensuring safety, as faults are only signaled via the SRS warning light.
The central installation position enables short connection paths to the relevant crash sensors and airbag units.
After an accident, it is often necessary to check and, if necessary, reset the crash data or completely replace the module in a workshop.
Regular system checks and prompt troubleshooting are important for occupant safety.