Airbag control unit with part number 25567EB301

What is the function of Airbag Control Unit 25567EB301?

The airbag control unit with part number 25567EB301 is the central control module of the occupant safety system (SRS) in the Nissan Qashqai J10. It processes signals from acceleration sensors to precisely deploy the airbags and seatbelt pretensioners at the right moment in the event of a crash, thereby ensuring the safety of vehicle occupants.

Technically, this control unit is specifically designed for the vehicle architecture of the Nissan Qashqai J10 series (model years 2006–2013). It communicates with all relevant safety components of the vehicle and ensures their proper functioning.

For accurate identification, it’s important to note that part number 25567EB301 is compatible with other Nissan part numbers, including 98820BK10A, 98820EY21B, 98820JD10A, 98820JD000, 988204EH0C, and 98820BT40A.

It should be noted that in some contexts, this part number is mistakenly associated with slip rings or coil springs intended for other Nissan models such as the Navara or X-Trail. However, its primary and correct application is as the airbag control unit for the Qashqai.

Why does Airbag Control Unit 25567EB301 fail?

The most common cause of failure for control unit 25567EB301 is the storage of crash data after an accident, which triggers an internal lockout. Other causes include electronic defects on the circuit board, damage from external factors such as moisture ingress (water damage), or issues with wiring and connectors.

Following a collision, the unit permanently stores crash event data and shuts down for safety reasons. This is not a malfunction per se but rather a manufacturer‑specified protective measure requiring professional repair.

Electronic malfunctions are also a frequent cause. Defective components like capacitors or faults on the circuit board can impair the unit’s functionality and lead to complete failure. Such hardware defects necessitate component‑level repairs.

External factors such as water damage, broken wires, or corroded connectors can likewise result in failure. Incorrect wiring during previous repair attempts may also damage the control unit.

How do you recognize a defect in control unit 25567EB301?

A defect in control unit 25567EB301 typically manifests as a continuously illuminated or flashing airbag warning light (SRS symbol) on the instrument cluster. Often, a workshop will no longer be able to communicate with the control unit and will read out the specific error code B1054, indicating an internal fault.

The most obvious sign is the activated SRS warning light. If the driver ignores this signal, the airbags will provide no protection in the event of a crash, as the entire system is disabled. An immediate visit to a workshop is therefore strongly advised.

Another clear symptom is the inability to communicate during diagnostics. When a specialized workshop attempts to read the fault memory, communication with the control unit fails—it becomes unreachable to the diagnostic tool.

In particular, for the Nissan Qashqai J10, the error code B1054 stored in the fault memory often points directly to a defect in the airbag control unit. This provides crucial guidance for targeted troubleshooting at the workshop.

In which vehicles is control unit 25567EB301 installed?

Part number 25567EB301 is specific to Nissan Qashqai J10 model series. This includes both the first generation produced from 2006 to 2010 and the subsequent facelift model available from 2010 to 2013.

At Airbag24, we professionally repair control unit 25567EB301 and compatible variants for the following Nissan models:

Nissan Qashqai (J10 series), model years 2006–2010

Nissan Qashqai (J10 facelift series), model years 2010–2013

How is control unit 25567EB301 professionally repaired?

Professional repair of control unit 25567EB301 takes place at the electronic level. Following a thorough fault analysis, stored crash data is erased, defective components on the circuit board are replaced via soldering, and finally, all functions are verified through a comprehensive testing procedure. The refurbished unit then operates just like a new one.

After being sent to Airbag24, each control unit undergoes a systematic incoming inspection to pinpoint the exact cause of the fault. This ensures that not only the symptoms but the root cause itself is addressed.

The core of the repair involves lifting the internal lock by erasing the crash data. Simultaneously, all relevant electronic components are inspected and replaced with high‑quality parts when necessary.

After successful repair, the control unit undergoes a comprehensive functional test. You naturally receive 2 years' statutory liability for defects on the completed repair. Following reinstallation in the vehicle, the fault memory must be cleared at a workshop.