What is a Daihatsu Atrai S120 airbag control unit?
The Daihatsu Atrai S120 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It continuously monitors a multitude of sensors, evaluates data in an emergency, and controls the deployment of the airbags and seatbelt pretensioners within milliseconds. Precise operation is crucial for vehicle safety.
This critical module, often located under the passenger seat or in the center console, acts as the brain of the passive safety system. It also stores important crash data and error codes, which are essential for diagnosing and further repairing the Daihatsu Atrai S120 airbag control unit.
Continuous real-time monitoring ensures that the system is operational at all times and detects potential errors immediately. The control unit thus plays a significant role in protecting occupants in the event of a collision.
Why is the Daihatsu Atrai S120 airbag control unit defective?
A Daihatsu Atrai S120 airbag control unit often fails because it stores crash data after an accident, necessitating reinitialization. Internal electronic errors, water damage, aging components, or an insufficient power supply can also lead to failure. This usually requires professional repair.
The most common cause of a defect is the storage of crash data after an airbag deployment, which blocks the control unit. Such a blockage prevents the airbags from functioning again and requires repair of the Daihatsu Atrai S120 airbag control unit.
Other causes can include wiring short circuits, overvoltage, or software problems that affect the internal logic. Such failures often manifest themselves as a permanently illuminated airbag warning light in the dashboard. A prompt diagnosis by a specialist workshop is therefore essential.
Common error codes for Daihatsu Atrai S120 airbag control unit repair
There are no publicly verified, model-specific error codes for Daihatsu Atrai S120 airbag control unit repairs. However, typical generic airbag control unit error codes indicate communication problems or internal module defects. A precise diagnosis requires reading the control unit using special software via the vehicle identification number (VIN).
- B1000 → Control unit communication error → Problems in the data connection to the airbag control unit.
- B1801 → Airbag control unit internal error → A defect within the internal electronics of the control unit.
- B-codes general → Sensor defects or belt tensioner problems → Errors in connected components or lines of the airbag system.
These general error codes are intended only as a guide, as specific codes for the Daihatsu Atrai S120 model are not documented. To obtain accurate information and perform a successful repair, a professional diagnosis is essential.
Specialized workshops use diagnostic tools that work directly with the vehicle identification number to precisely identify errors and initiate the necessary repair steps. Ignored error codes can significantly compromise vehicle safety.
What part numbers are available for the Daihatsu Atrai S120 airbag control unit repair?
No exact OEM part numbers have been identified in official sources for the Daihatsu Atrai S120 airbag control unit repair. This makes it difficult to find the exact replacement part. To determine the correct part number, it is advisable to contact a Daihatsu dealer or a specialized service company with the vehicle's VIN number.
A search for original or alternative OEM part numbers for the airbag control unit of the Daihatsu Atrai S120 in common professional databases was unsuccessful. This may be due to spare part availability or specific model updates.
Therefore, if repair or replacement is necessary, it is recommended to directly read the existing control unit or its serial number. This is the only way to ensure that the correct replacement part is found for your Daihatsu Atrai S120 airbag control unit. Determining the exact part number is crucial for a successful repair and the continued functionality of the system.