Rover Range Rover Holland & Holland Airbag Control Unit Repair

What is a Rover Range Rover Holland & Holland airbag control unit?

The Rover Range Rover Holland & Holland 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 and seatbelt pretensioners in the vehicle, essential for your safety.

This SRS module (Supplemental Restraint System Electronic Control Unit) is crucial for airbag deployment in the event of a collision. It continuously evaluates signals from acceleration sensors.

In addition, it continuously diagnoses the entire airbag system. In the event of malfunctions, the airbag warning light illuminates, requiring professional diagnosis.

Why is the Rover Range Rover Holland & Holland airbag control unit faulty?

A Range Rover Holland & Holland airbag control unit often fails after an accident because it irreversibly stores crash data, necessitating repair or replacement for occupant safety. Internal electronic faults, software problems, or power supply disruptions can also cause failure.

Typically, the airbag control unit is classified as "broken" or "defective" after an impact. This is due to the storage of crash data intended to prevent re-deployment.

Another cause of failure could be an internal memory error or a power supply issue. Such defects cause the system to no longer function properly.

Software errors or problems with CAN bus communication can also impair the control unit's function. In these cases, repairing or replacing the module is essential to restore airbag function.

Common error codes for Rover Range Rover Holland & Holland Airbag Control Unit repair

During Rover Range Rover Holland & Holland airbag control unit repairs, certain error codes directly indicate problems with the airbag control unit itself, not with sensors or other components. These codes are crucial for precise diagnosis and targeted repair of the SRS module fault.

• B1000 → Control unit communication error → Cause: Problem with the connection of the airbag control unit to the vehicle network.
• B1001 → Internal memory error in the airbag ECU → Cause: Damage or defect in the internal memory of the control unit.
• B1002 → Internal microprocessor error → Cause: Malfunction of the main processor in the airbag control unit.
• B1003 → Control unit internal self-test error → Cause: The control unit could not successfully complete the internal function test.
• B1004 → EEPROM error in the airbag control unit → Cause: Problem with the non-volatile memory (EEPROM) of the control unit.
• B1025 → Airbag control unit voltage supply error → Cause: Insufficient or unstable voltage supply to the control unit.
• B1100 → Software error in the airbag control unit → Cause: Faulty or corrupt software within the control unit.
• B1101 → Control unit reset required (watchdog timeout) → Cause: The control unit has detected an internal error that requires a restart.
• B1105 → Communication error CAN bus to airbag ECU → Cause: Malfunction in the data transmission via the CAN bus to the airbag control unit.

These error codes are crucial for determining whether a Range Rover Holland & Holland airbag control unit repair is necessary. They require a precise diagnosis at the workshop.

What part numbers are available for the Rover Range Rover Holland & Holland airbag control unit repair?

For Rover Range Rover Holland & Holland airbag control unit repairs, exact OEM part numbers are crucial, as airbag control units are highly vehicle-specific and only the correct number ensures full functionality and safety. A mix-up could compromise safety.

When repairing or replacing an airbag control unit for the Range Rover Holland & Holland, specific Land Rover OEM part numbers must be observed to ensure compatibility.

Confirmed original part numbers are LR049974 and DK6214D374AF. These numbers are listed for various Range Rover models and years.

The number LR049974 is listed as an airbag module for Range Rover models from 2012 to 2021. DK6214D374AF is specifically relevant for Range Rover Sport models from 2014 to 2015.

There are no publicly listed, uniquely assigned OEM supplier part numbers (e.g., from Bosch or Continental) for these specific Land Rover modules. They are primarily sold under Land Rover OEM numbers.

A professional repair shop can identify the correct part number for your Range Rover Holland & Holland airbag control unit repair. This is essential for the functionality of the safety system.