Airbag control unit with part number 9824811680

What is the function of the airbag control unit 9824811680?

The airbag control unit with part number 9824811680 is the central control module for the occupant protection system in PSA Group vehicles built on the EMP2 platform. It analyzes data from crash sensors and is responsible for deploying airbags and seatbelt pretensioners in the event of a collision.

As an Airbag Control Unit (ACU), this module serves as the brain of the entire restraint system. It continuously monitors all connected components, including front, side, and head airbags, seatbelt pretensioner systems, as well as external acceleration and pressure sensors.

This control unit is specifically designed for use in models such as the Opel Grandland X, Peugeot 3008 II, and Peugeot 5008 II. Its primary task is to ensure occupant safety through precise, split-second responses to accident scenarios.

Why does the control unit 9824811680 fail?

The most common cause of failure for control unit 9824811680 is the storage of crash data after an accident, which results in permanent system immobilization. Additionally, internal electronic faults on the circuit board—caused by aging or environmental factors—can impair functionality.

Following a collision, even minor ones, the control unit irrevocably stores so‑called crash data. This data retention is a safety feature that locks the system to prevent malfunction after an accident. The result is a permanently illuminated airbag warning light.

Another frequent issue is internal hardware failure, often indicated by error code B1000. Causes may include aging components such as capacitors or microcontrollers, microscopic cracks at solder joints due to vibrations, or corrosion caused by moisture ingress.

Several variants and equivalent part numbers exist for this control unit, including 9666775480, 9675181780, 9825276280, 9823741880, 9824812180, as well as A2C96579804 and A2C96579809. Defects can manifest similarly across all these versions.

How do you recognize a fault with 9824811680?

A defective airbag control unit 9824811680 typically shows up as a persistently illuminated airbag warning light on the instrument cluster. Additionally, the control unit may become inaccessible to diagnostic tools, making it impossible to read out error codes.

The most noticeable and common symptom is the active airbag warning light, which fails to extinguish after starting the engine—indicating a serious, safety‑critical system fault.

In many cases, an internal defect or stored crash data leads to complete deactivation of the airbag system. In another accident, airbags and seatbelt pretensioners would no longer deploy, posing a significant safety risk.

During workshop diagnostics, communication with the control unit is often lost. Diagnostic equipment cannot establish a connection or reads a generic error code like B1000, pointing to an internal fault within the control unit itself.

In which models is 9824811680 installed?

The airbag control unit 9824811680 is used in a range of vehicles from the former PSA Group built on the EMP2 platform, primarily SUVs and crossovers from Opel and Peugeot produced in recent model years.

At Airbag24, we repair the 9824811680 control unit for the following vehicle models, which exhibit high compatibility:

Opel: Grandland X (model years 2017–2024) and its successor, the Grandland B (from 2024 onward).

Peugeot: 3008 first generation I (2009–2013), including the facelifted version (2013–2016); second generation 3008 II (2016–2020) and its facelift (2021–2023); as well as the 5008 II (2017–2020) with its facelift (2021–2024).

What are the benefits of repair?

Repairing the original airbag control unit 9824811680 is the most economical and technically sensible solution. It’s significantly cheaper than purchasing a new unit, avoids time‑consuming re‑coding of the vehicle, and restores full functional reliability with warranty coverage.

Compared to buying a new control unit, which often costs several hundred euros, repair offers substantial cost savings. Even versus used parts, whose origin and condition are frequently uncertain, professional refurbishment remains the safer choice.

A key technical advantage is preserving your vehicle’s original coding. Since your existing unit is repaired, all vehicle‑specific data (VIN, trim level) remain intact. After repair, the control unit can be easily reinstalled via plug-and-play, eliminating the need for expensive reprogramming at an authorized service center.

A professionally repaired control unit functions technically just like a new part. In addition, you receive 2 years’ statutory liability for defects on every repair performed.

How does the repair of 9824811680 work?

At Airbag24, the repair of control unit 9824811680 follows a strict, professional process. After an initial analysis, stored crash data is erased and any hardware defects on the circuit board are fixed at the component level, before a final functional test is carried out.

After removal and shipment to Airbag24, the control unit first undergoes a comprehensive diagnosis. During this step, stored fault codes are read out, and the hardware is inspected for both visible and measurable damage.

The core of the repair consists of two steps. First, the control unit’s memory is professionally reset to remove all stored crash data. Simultaneously, electronic refurbishment takes place: defective components such as capacitors or microcontrollers are identified and replaced by qualified technicians, while cold solder joints are reworked.

Upon completion of the repair work, each control unit undergoes a final test to ensure flawless operation across all system areas. We provide 2 years' statutory liability for defects on the entire repair.