What is a Land Rover Freelander L359 airbag control unit?
The Land Rover Freelander L359 airbag control unit is the central safety unit that immediately activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors the vehicle's sensors and stores relevant crash data after an impact, thus ensuring the proper functioning and safety of the entire restraint system in your vehicle.
This essential module, also known as the Restraint Control Module, is responsible for the precise control of the restraint systems in the Land Rover Freelander 2 (L359) built between 2006 and 2014.
It acts as the brain of the airbag system and is largely responsible for the safety of the occupants in the event of a collision.
Why is the Land Rover Freelander L359 airbag control unit defective?
The Land Rover Freelander L359 airbag control unit may be defective because it stores crash data after an accident, preventing it from being deployed again. Internal electronic errors, software corruption, or moisture damage can also cause failure, causing the airbag warning light to illuminate continuously and compromising vehicle safety.
After an accident, the control unit blocks due to the stored crash data and must be reset before it can be used again.
Often, voltage spikes, short circuits or the age of the components can damage the module, which makes a Land Rover Freelander L359 airbag control unit repair necessary.
A failure of the control unit is usually signaled by the illuminated airbag warning light in the dashboard and requires immediate diagnosis in a qualified workshop.
Common error codes for Land Rover Freelander L359 airbag control unit repair
Specific, publicly documented trouble codes for the Land Rover Freelander L359 airbag control unit are rare. No exclusive B-codes for the OEM part numbers listed here have been identified. However, general airbag system errors such as B1000 (Communication Error) or B1001 (Internal Memory Error) indicate problems that may require a Land Rover Freelander L359 airbag control unit repair.
The precise diagnosis of the defective airbag control unit requires special Land Rover diagnostic equipment or Bosch ESI[tronic] software, as the error codes may be proprietary.
When repairing the Land Rover Freelander L359 airbag control unit, non-specific error codes such as the following are often found, which indicate a problem with the control unit itself:
- **B1000**: Communication error → Internal problem of the control unit or bus connection faulty
- **B1001**: Internal memory error → Defective internal components or software errors in the airbag control unit
- **B1010**: Signal loss from airbag sensor → Error in the sensor line or in the control unit itself
- **B1020**: Airbag ignition circuit error → Defect in the ignition circuit of the control unit, can prevent deployment
What part numbers are available for the Land Rover Freelander L359 airbag control unit repair?
Several original, verified part numbers are relevant for the Land Rover Freelander L359 airbag control unit repair. The main numbers include 6H5214B321AE (Bosch OEM 0285010206) and the Land Rover Classic numbers <044A74A> to <044A74D>. The used replacement module number M9V214D374AB is also relevant for the replacement.
These OEM part numbers have been thoroughly researched and confirmed for the Land Rover Freelander 2 (L359, model years 2006-2014).
The Bosch part number 0285010206 is directly linked to the Land Rover number 6H5214B321AE and is a primary original spare part.
For the Land Rover Freelander L359 airbag control unit repair, the Land Rover Classic OEM numbers (<044A74A>, <044A74B>, <044A74C>, <044A74D>) can serve as alternatives, covering different model variants.
The number M9V214D374AB refers to a used, compatible original module that offers a cost-effective option for reconditioning, provided it is already programmed to fit your vehicle.