Airbag control unit with part number 0 285 013 561

What is the function of Airbag Control Unit 0 285 013 561?

The Airbag Control Unit 0 285 013 561 is a central control module manufactured by Bosch for the occupant protection system. It was specifically developed for the Daihatsu Tanto models L350 and L375 and is responsible for processing crash sensor data and activating airbags and seatbelt pretensioners in the event of an accident.

As the brain of the passive safety system, this component continuously monitors all connected sensors and actuators. The part number structure (0 285 xxx xxx) identifies Bosch as the manufacturer—a well-established supplier of airbag electronics, particularly in Japanese Kei cars such as the Daihatsu Tanto.

Under normal operating conditions, the control unit ensures system readiness and performs a self-diagnosis each time the vehicle is started. If a fault occurs, the airbag warning light illuminates to alert the driver that occupant protection is no longer guaranteed.

Why does Control Unit 0 285 013 561 fail?

The most common causes of failure for Control Unit 0 285 013 561 are purely electronic in nature. These include defects in internal circuitry, faulty sensor connections, or age-related component degradation. Such a malfunction renders the entire airbag system inoperable during a real-world collision, posing a significant safety risk.

A primary cause is electronic damage on the circuit board, ranging from microscopic hairline cracks in solder joints to the failure of individual electronic modules. These issues often arise due to thermal stress and vibrations over time.

The peripheral components can also play a role. In workshop practice, similar control units occasionally exhibit corroded connectors or damaged cable connections, leading to internal malfunctions. Likewise, accidents may result in permanent damage to the control unit, necessitating repair.

How do you recognize a defect in Control Unit 0 285 013 561?

The clearest symptom of a defect in Control Unit 0 285 013 561 is the permanently illuminated airbag warning light on the instrument cluster. This signal must not be ignored, as it indicates that the vehicle’s entire restraint system is out of service and would fail to deploy in an accident.

Typically, the warning light fails to extinguish after starting the engine, or in some cases never lights up at all. Both scenarios point to a serious issue within the control unit, requiring immediate diagnosis at a specialized workshop.

A defective airbag control unit poses a life-threatening hazard. Without a functioning control unit, airbags and seatbelt pretensioners remain inactive in the event of a collision. Therefore, prompt action is essential when the warning light is on.

In which vehicles is Control Unit 0 285 013 561 installed?

The Bosch airbag control unit with part number 0 285 013 561 was designed specifically for certain models produced by the Japanese manufacturer Daihatsu. It is exclusively used in the Daihatsu Tanto series, generations L350 and L375. At Airbag24, we repair this control unit for the following specific vehicles:

Daihatsu Tanto L350 (model years 2003–2007)

Daihatsu Tanto L375 (model years 2007–2013)

How does the repair process work at Airbag24?

Professional repair of Control Unit 0 285 013 561 at Airbag24 follows a certified procedure. After removal and submission, the unit undergoes precise fault analysis; defective electronic components are replaced, and the device is thoroughly tested for full functionality. Each repair comes with 2 years' statutory liability for defects.

First, the control unit must be removed from the vehicle, usually located beneath the center console or dashboard. It is then securely packaged and sent to Airbag24 along with the online repair order.

Upon arrival at the workshop, specialized technicians perform a detailed diagnosis using state-of-the-art testing equipment. Defective components on the circuit board, such as electronic modules, are professionally replaced. Self-repair is not recommended due to the complexity of the electronics and the critical safety implications.

Following successful repair, the control unit undergoes a comprehensive functional test. Only when all parameters meet the manufacturer’s specifications is it returned to the customer with installation instructions, fully operational once again.