Airbag control unit with part number 9675878280

What is the function of the airbag control unit 9675878280?

The airbag control unit with part number 9675878280 is the central control unit for the passive safety system in the Citroën Berlingo III (K9). It processes data from crash sensors and determines whether to deploy airbags and seatbelt pretensioners, providing optimal protection for occupants in the event of a collision.

As the “brain” of the restraint system (SRS – Supplemental Restraint System), this control unit continuously monitors signals from acceleration and pressure sensors. In the event of a collision, it calculates the severity of the impact within milliseconds and activates the necessary pyrotechnic components.

These include not only front and side airbags but also seatbelt pretensioners, which tighten the seatbelt against the body at the critical moment. Therefore, the proper functioning of this unit is essential for vehicle passive safety.

Why does control unit 9675878280 fail?

The most common cause of failure for control unit 9675878280 is the storage of crash data after an accident, which prevents further use. Other reasons include internal electronic faults that trigger error codes such as 65535, as well as communication issues on the CAN bus or problems caused by overvoltage.

After a collision in which airbags or even just the seatbelt pretensioners have deployed, the unit permanently stores so‑called “crash data.” This permanent storage is a manufacturer‑imposed safety measure that locks the device out of service, requiring repair or replacement.

Another frequent defect is an internal hardware failure. This often manifests as error code 65535 or 93F9 in the fault memory, indicating a malfunction in the processor or memory chip. Such errors can occur spontaneously, even without an accident.

Communication problems via the CAN bus prevent the control unit from interacting with other systems in the vehicle. Causes may also include faulty cable connections—such as those near the seats after adjustments—or general electronic disturbances like overvoltage in the vehicle’s electrical system.

How do you recognize a defect in airbag control unit 9675878280?

A defect in control unit 9675878280 is primarily indicated by the airbag warning light (SRS warning light) remaining steadily illuminated or flashing in the instrument cluster. Additionally, it is often impossible to access the control unit using a diagnostic tool to read out error codes.

The most obvious warning sign is the active SRS light. If this light stays on continuously after starting the engine, the system indicates a critical fault. In such cases, the entire airbag system is typically disabled, posing a significant safety risk.

A typical symptom during workshop diagnostics is the lack of communication. When attempting to connect an OBD2 scanner to the airbag control unit, no response is received. Other control units in the vehicle may store error codes suggesting a communication issue with the airbag module.

If error codes are read, specific entries such as “Internal Error” or messages indicating excessively high resistance values in airbags or seatbelt pretensioners also point to a problem within the control unit itself or its peripherals. Immediate inspection at a specialized workshop is strongly recommended.

In which vehicles is control unit 9675878280 installed?

The airbag control unit with part number 9675878280 is specifically designed for the Citroën Berlingo III of the K9 series, produced from 2018 to 2024. At Airbag24, this control unit is offered exclusively for repairs on this model, ensuring full functionality of the safety system.

This control unit is clearly tailored to a specific vehicle platform from the former PSA Group (now Stellantis). At Airbag24, we repair part number 9675878280 for the following model:

Citroën Berlingo III K9 (model years 2018–2024)

Although other vehicles from the same group, such as the Peugeot 307 or 308, may exhibit similar defects due to shared design principles, part number 9675878280 is directly assigned to the aforementioned Berlingo model. However, the repair procedures are often transferable to other control units from the same manufacturer.

How is control unit 9675878280 professionally repaired?

Professional repair of control unit 9675878280 at Airbag24 involves a systematic analysis, deletion of stored crash data, and hardware restoration down to the component level. Following repair, the unit undergoes thorough testing to ensure full functionality.

Before removal, it is recommended to read out the fault memory to speed up diagnosis. After removal and shipment to Airbag24, the repair process begins with a thorough examination of the electronics.

The central step often involves resetting the internal lock by erasing the crash data. This is accomplished using specialized hardware and software that provide direct access to the device’s memory chips.

If an internal hardware defect is present, faulty electronic components such as resistors, processors, or memory chips are identified and professionally replaced. Upon completion of the repair work, a comprehensive functional test is performed. We offer a 12-month warranty on all repairs.

What shipping options does Airbag24 offer?

For repairing your control unit, Airbag24 provides flexible and secure shipping options. You can send the component free of charge or arrange for UPS pickup. Returns are also handled reliably via UPS, either as free standard shipping or as fast express delivery, including cash-on-delivery.

For sending your removed control unit back to us, you have two convenient choices: you can ship it yourself or drop it off at one of our locations. Alternatively, you can request UPS pickup at your preferred location.

After successful repair, several return shipping options are available. UPS standard shipping is free of charge.

For an additional fee, you can opt for faster UPS express shipping. Both standard and express options can also be combined with cash-on-delivery. Of course, you may also choose to pick up your repaired control unit in person from our facility.