What is a Hyundai i10 BA airbag control unit?
The Hyundai i10 BA airbag control unit is the central safety unit that activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It precisely monitors signals from impact sensors and stores important crash data, ensuring the proper functioning of the entire vehicle's safety system.
This safety-relevant component operates with a system voltage of 12V and is responsible for communication within the vehicle electronics.
It performs continuous self-diagnosis to ensure the functionality of the occupant protection system.
Why is the Hyundai i10 BA airbag control unit defective?
A Hyundai i10 BA airbag control unit can fail for a variety of reasons, often after an accident, as it stores crash data and then activates the airbag warning light. Internal electronic errors, water damage, or hardware defects can also cause failure, requiring immediate repair.
If the control unit is defective, this often leads to a permanently illuminated airbag warning light in the instrument cluster.
A failure can also affect the ability to communicate with other vehicle modules, making diagnosis difficult.
Storing crash data blocks the control unit's memory and must be professionally erased before re-commissioning in order to repair the system.
Common error codes for Hyundai i10 BA airbag control unit repair
When repairing the Hyundai i10 BA airbag control unit, error code B1620 is the most common and exclusive code for a defective control unit itself. This code indicates an internal error caused by electronic defects, water damage, or the storage of crash data after an accident.
- **B1620** → Airbag control unit internal error → Internal electronic errors, water damage, hardware defects or persistent crash data after an accident.
Other specific control unit error codes are not documented for this model and these part numbers.
Diagnosis requires special airbag scanning tools to correctly read the error memory.
What part numbers are available for the Hyundai i10 BA airbag control unit repair?
For the Hyundai i10 BA airbag control unit repair, various OEM part numbers and a Bosch OE number are relevant, all of which are directly compatible with the BA, IA, and PA series. The most important numbers include 95910-B9250 for newer models and the 95910-0X2xx series for the older generation, while 5WK4 4387 is known as the Bosch supplier number.
The main OEM part number for the Hyundai i10 BA/IA is 95910-B9250, which also exists in a revision VER2.2.
For the first generation (PA), common original part numbers are 95910-0X200, 95910-0X210, 95910-0X100 and 95910-0X700.
The Bosch OE number 5WK4 4387 is an important OE supplier number for these control units.
Another verified Hyundai OEM number that often appears on used control units is 934900X210.
These numbers ensure correct compatibility and functionality when replacing or repairing the airbag control unit.