B1411-00 - Crash right side airbags (crash data stored) airbag control unit fault

What does error code B1411-00 indicate in the airbag control unit?

Primarily, error code B1411-00 indicates that crash data for the vehicle’s right side is stored in the airbag control unit. This means the system has detected an impact and has locked itself as a safety precaution. In some cases, the code may also point to a fault in the seat occupancy sensor, since its signals are processed by the airbag control unit.

Technically speaking, upon detecting a collision via the crash sensors, the control unit enters a read-only state, permanently storing relevant impact data in its internal memory. This condition is a manufacturer‑specified safety measure designed to prevent the use of a potentially compromised system without proper inspection.

The connection to the seat occupancy sensor is equally critical. A faulty signal from this sensor can disrupt the correct airbag deployment strategy and significantly compromise vehicle safety—conditions that the control unit will also interpret as errors.

How do you recognize error code B1411-00?

The most obvious symptom of error code B1411-00 is the airbag warning light (SRS lamp) on the instrument cluster, which remains steadily illuminated or flashes. Additionally, the vehicle’s display may show diagnostic messages indicating a malfunction in the airbag system. In this state, the airbags may be deactivated.

The airbag warning light does not extinguish after starting the engine as usual but stays on continuously, clearly signaling a serious issue that requires immediate inspection at a specialized workshop.

When reading the fault memory with an appropriate diagnostic tool, the specific code B1411-00 appears alongside the description “Crash Right side Airbags” or a similar equivalent. Without diagnostic equipment, pinpointing the exact cause is impossible.

What causes error code B1411-00?

The primary cause of error code B1411-00 is the storage of crash data following an accident or collision. Other potential causes include hardware defects such as damaged crash sensors, faulty connectors, water ingress into the control unit, or damaged cables leading to signal malfunctions.

After an accident, storing crash data is the most common—and system‑intended—cause. The data must be erased by a specialist to restore the control unit’s functionality.

Defective or malfunctioning sensors, especially the side‑impact crash sensors, can send incorrect signals to the control unit. Corroded or loose airbag connectors and wiring can also disrupt communication and trigger the error.

Ingress of moisture is another serious cause. Water inside the control unit can lead to short circuits on the circuit board and cause irreversible damage to electronic components.

In certain vehicles, particularly 3‑door models, a defect in the steering wheel coil spring may also result in issues. Continuous movement during steering can wear out connectors and trigger the error.

Which vehicles experience error code B1411-00?

Error code B1411-00 can occur in various modern vehicles equipped with corresponding safety systems. At Airbag24, we have specifically diagnosed and successfully repaired this error code in newer Peugeot models.

Specifically, Airbag24 offers repairs for error B1411-00 on the following models:

Peugeot 308 III (model years 2021–2025) and the upcoming facelift model (from 2025 onward).

How is error code B1411-00 professionally repaired?

Professional repair focuses on eliminating the root cause, typically involving erasing the stored crash data from the control unit. After sending the unit to Airbag24, it undergoes analysis, the crash data is removed using specialized equipment, and a comprehensive functional test is performed to ensure full operational readiness.

Once the removed airbag control unit arrives at Airbag24, a detailed diagnosis is conducted. This includes reading the fault memory and inspecting the hardware for visible damage, such as that caused by water ingress.

The core process involves erasing the crash data at the chip level, restoring the control unit to its pre‑accident state. If additional hardware defects—such as sensor or cable issues—are identified during diagnosis, these are also expertly addressed.

Following successful repair, rigorous testing ensures the flawless operation of the control unit. The unit can then generally be reinstalled in the vehicle without further programming or coding (plug-and-play). All repairs come with 2 years' statutory liability for defects.