What is a Daihatsu Atrai S220 airbag control unit?
The Daihatsu Atrai S220 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 the sensors, stores important crash data, and ensures the proper functioning of all airbag modules in the vehicle for your safety.
This electronic module processes signals from acceleration sensors and crash sensors. It decides on the necessary triggering measures within milliseconds.
It plays a critical role in occupant safety, as a malfunction could deactivate the protection systems in an emergency.
Why is the Daihatsu Atrai S220 airbag control unit defective?
The Daihatsu Atrai S220 airbag control unit often fails because crash data is permanently stored after an accident, preventing the module from being reused. Internal electronic errors, voltage fluctuations, or water ingress can also impair functionality, necessitating repair.
A common cause of a malfunction is the storage of crash data after a collision. The system is then locked and prevents reactivation.
Aging of components, short circuits in the vehicle electronics or software errors can also cause the airbag control unit to no longer work properly or to display error codes.
Common error codes for Daihatsu Atrai S220 airbag control unit repair
Specific OEM trouble codes for the Daihatsu Atrai S220 airbag control unit are rarely documented in general databases, so here are some sample, general airbag trouble codes that indicate control unit problems. Accurate diagnosis requires manufacturer-specific tools and part number verification.
- B1000 → Control unit communication error → Interruption in communication with other systems or internal defect of the airbag control unit.
- B1100 → Internal error in the airbag control unit → Defect in the internal hardware or software, often after an accident or due to aging of the components.
- B1234 → Short circuit in the cable to the airbag module → Damage to the wiring to an airbag or seat belt pretensioner, causing a short circuit.
- B1340 → Airbag ignition circuit fault → Problem in the circuit responsible for deploying the airbag, e.g. defective squib or wiring.
What part numbers are available for the Daihatsu Atrai S220 airbag control unit repair?
No exact OEM part numbers for the Daihatsu Atrai S220 airbag control unit could be verified in available, publicly accessible databases. Therefore, it is crucial to accurately match the part number of your original, installed airbag control unit for repair or replacement to ensure compatibility.
Research has shown that manufacturers such as Bosch, Continental, and Autoliv do not list specific OEM numbers for this model. Without an exact reference number for the installed device, identification is difficult.
It is strongly recommended to use the part number located on your removed control unit or to contact an authorized Daihatsu dealer to determine the correct part number for your Daihatsu Atrai S220 airbag control unit.
Technical specifications of the Daihatsu Atrai S220 airbag control unit
The Daihatsu Atrai S220 airbag control unit operates on a 12V vehicle electrical system and features a microcontroller for real-time signal acquisition. It integrates sensors, communicates via CAN bus, and stores crash data and error codes for comprehensive system diagnostics.
The operating temperature range typically extends from -40°C to +85°C. This ensures functionality under extreme conditions in the vehicle interior.
An integrated backup power supply ensures that the airbags are deployed even if the on-board power supply is interrupted.
Compatible vehicle models and years of manufacture for the Daihatsu Atrai S220 airbag control unit repair
The airbag control unit repair is specifically designed for the Daihatsu Atrai S220 vehicle model. It is compatible with models produced approximately between the early 2000s and the mid-2010s and often requires a specific software modification.
Exact compatibility depends on the trim level and the originally installed part number. Therefore, checking the existing part number is essential.
A professional workshop can check the exact fit for your Daihatsu Atrai S220 airbag control unit.
Functionality and features of the repaired Daihatsu Atrai S220 airbag control unit
A repaired Daihatsu Atrai S220 airbag control unit restores full functionality by detecting accidents with millimeter precision, deploying airbags and seatbelt pretensioners, and performing comprehensive self-diagnostic checks. It stores important crash data and reports system errors to ensure maximum occupant safety.
The unit continuously processes data from acceleration and pressure sensors, enabling immediate detection of an accident.
After an accident, crash data is stored for later analysis. The system also detects and reports malfunctions such as defective sensors or ignition circuits, facilitating diagnosis.
Installation position and connections of the Daihatsu Atrai S220 airbag control unit
The Daihatsu Atrai S220 airbag control unit is typically located inside the vehicle, protected in the center console or under the dashboard. It features multi-pin connectors for sensors, actuators, power supply, diagnostics, and CAN bus ports for seamless integration.
The location was strategically chosen to provide protection from external influences and ensure short cable routes. This is essential for fast and reliable communication.
The assembly is carried out using special brackets in a vibration-damping housing to ensure the longevity of the component.
Advantages of a Daihatsu Atrai S220 airbag control unit repair
A professional Daihatsu Atrai S220 airbag control unit repair is a cost-effective and environmentally friendly alternative to purchasing a new one, restoring the system's original reliability and safety. By repairing defective components, you receive a fully functional module with proven quality and a warranty.
This option saves significant costs compared to purchasing a new part. It also reduces the ecological footprint by reusing the part instead of producing it from scratch.
Repaired units meet automotive safety standards. They are thoroughly tested to ensure proper function, ensuring the reliability of your Daihatsu Atrai S220 airbag control unit.