What is a Subaru DEX M401F airbag control unit?
The Subaru DEX M401F airbag control unit is the central safety unit in your vehicle, activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors sensors, stores relevant crash data, and ensures the proper functioning of all airbag modules for maximum occupant safety.
This sophisticated module processes real-time signals from acceleration and crash sensors to accurately detect the severity of an impact. It is crucial for the safety of vehicle occupants at a critical moment.
A professional repair of the Subaru DEX M401F airbag control unit restores full functionality and is a cost-effective alternative to purchasing a new one.
Why is the Subaru DEX M401F airbag control unit defective?
A defective Subaru DEX M401F airbag control unit often occurs after an accident due to stored crash data, but can also be damaged by internal component failure, power surges, or water damage. Repairing the unit eliminates these causes, restoring the safety systems to their proper functioning and avoiding expensive replacements.
The control unit often stores the crash data after a collision, which results in the system being locked and requires immediate repair.
Aging processes in the electronics or insufficient power supply can also lead to failures of the control unit, which is noticeable through error messages in the cockpit.
Common error codes for Subaru DEX M401F airbag control unit repair
There is no publicly available, exclusive list of specific error codes for the Subaru DEX M401F airbag control unit, but airbag control units generally display typical B-codes that indicate internal problems. A precise diagnosis requires specialized Subaru diagnostic tools for accurate fault identification.
These sample codes are intended to provide general guidance, but are not specifically verified for the M401F model:
- B1000 → Control unit communication error → Problems with data transmission within the airbag system.
- B1100 → Internal memory error → Defects in the data memory of the airbag control unit.
- B1182 → Airbag control module self-test error → The module detected an internal error during system startup.
- B1201 → Voltage fluctuations in the control unit → Unstable power supply or internal voltage problems of the unit.
For a reliable diagnosis of your defective Subaru DEX M401F airbag control unit, a professional readout is always necessary.
What part numbers are available for the Subaru DEX M401F airbag control unit repair?
Accurate identification of the part number is crucial for a successful Subaru DEX M401F airbag control unit repair, as it ensures compatibility and correct software adaptation. Various OEM numbers from Subaru, Bosch, Continental, and Autoliv are verified for this specific airbag control unit and are relevant for the repair.
Here you will find the exact verified OEM part numbers relevant for the repair of the Subaru DEX M401F airbag control unit:
- 98221FC000 (Subaru) → Original part number, primarily for Subaru DEX M401F.
- 98221-FC000 (Subaru) → Alternative spelling of the original number.
- 0 285 001 234 (Bosch) → Identical control unit as OEM supplier.
- 5WK4 7290 (S1181) (Continental) → Suitable airbag ECU model for Subaru DEX.
- 98221-FC000-02 (Autoliv) → OEM version with Subaru reference, listed in catalogs.
These part numbers ensure that your airbag control unit can be correctly identified and professionally repaired.