What is a Land Rover Discovery L462 airbag control unit?
The Land Rover Discovery L462 airbag control unit is the central safety unit that activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of a collision. It continuously monitors numerous sensors in the vehicle, stores critical crash data, and thus ensures the proper function and deployment of all airbag modules for maximum occupant safety.
This module, also known as the Restraint Control Module (RCM), is an essential component of the passive safety system of your Land Rover Discovery L462.
It processes real-time data from impact sensors and decides in milliseconds whether to trigger the protection systems.
Why is the Land Rover Discovery L462 airbag control unit defective?
A Land Rover Discovery L462 airbag control unit often fails after an accident because it stores crash data that causes the system to deactivate. Internal component failures, voltage spikes, or age-related wear and tear on the electronics can also cause a failure, requiring immediate Land Rover Discovery L462 airbag control unit repair.
After an accident, crash data is stored in the control unit's memory and prevents it from functioning again without a professional reset. This often leads to an airbag warning light illuminating on the dashboard.
Other common causes of failure include internal memory errors (EEPROM), communication problems with other vehicle systems, or incorrect software configuration.
A defective control unit poses a significant safety risk, as it can impair the correct deployment of the airbags in an emergency and requires immediate diagnosis by a specialist workshop.
Common error codes for Land Rover Discovery L462 airbag control unit repair
Typical error codes that indicate a faulty Land Rover Discovery L462 airbag control unit are B-codes such as B1000 to B1015, which signal internal module problems, power supply errors, or memory errors. These error codes require specialized diagnostics and are crucial for a successful Land Rover Discovery L462 airbag control unit repair.
- B1000 → Control unit communication error → Internal communication problems of the airbag ECU
- B1001 → Control unit internal errors → Internal malfunction of the airbag ECU
- B1002 → Power supply error in the control unit → Under/overvoltage in the airbag ECU
- B1003 → Memory error in the control unit → Damaged memory in the airbag ECU
- B1004 → Software configuration error in the control unit → Inconsistent software in the airbag ECU
- B1005 → Internal control unit sensor error → Defective internal sensors in the airbag ECU
- B1010 → Internal diagnostic memory error → Problem with the diagnostic memory of the airbag ECU
- B1015 → Airbag control unit EEPROM error → Faulty EEPROM memory of the airbag ECU
These error codes can only be read and processed with special diagnostic software.
A precise diagnosis is the first step to solving the problem and successfully repairing the Land Rover Discovery L462 airbag control unit.
What part numbers are available for the Land Rover Discovery L462 airbag control unit repair?
For the Land Rover Discovery L462 airbag control unit repair, two primary OEM part numbers are verified: LR095850 from Land Rover itself and HY3214D374AA, a genuine part from Autoliv/Land Rover. These numbers guarantee exact compatibility with your vehicle model and are crucial for a safe and functioning restoration of the safety system.
It is imperative to check the part number of your currently installed unit before ordering or repairing.
Only the use of identical part numbers ensures full compatibility and functionality of the new or repaired module.
- LR095850 → Manufacturer: Land Rover → Type: Original OEM Airbag Control Unit for Discovery L462
- HY3214D374AA → Manufacturer: Autoliv / Land Rover (OEM) → Type: Original OEM SRS RCM for Discovery L462
These part numbers are specific to the Land Rover Discovery L462 Airbag Control Module and no alternative numbers for the range module are reliably verified.
For the Land Rover Discovery L462 airbag control unit repair, the correct assignment of the part number is essential to avoid further failures and ensure safety.