Airbag control unit with part number 570679500

What is the function of Airbag Control Unit 570679500?

The airbag control unit with part number 570679500 is the central control module for the occupant safety system (SRS) in the Saab 9-5 YS3G (model years 2010–2011). It processes signals from crash sensors, deploys airbags and seatbelt pretensioners in the event of a collision, and stores relevant crash data. This unit is verified to be compatible with part number 12772222.

As the heart of the passive safety system, this control unit continuously monitors all connected components, including various airbags, seatbelt systems, and sensors that detect a collision.

Its primary task is to analyze sensor data in real time and, upon reaching predefined thresholds, activate restraint systems precisely and within milliseconds to provide optimal protection for occupants.

Why does control unit 570679500 fail?

The most common cause of failure for control unit 570679500 is the storage of crash data after an accident, which locks the unit out of service for reuse. Other causes include internal electronic component defects, moisture damage, or issues with external wiring and connectors.

Following a collision, a so‑called crash record is stored in the control unit’s internal memory. This lockout is a safety feature designed to prevent the vehicle from being operated with potentially deployed safety components. The error cannot be cleared using standard diagnostic tools.

In addition, age‑related failures of electronic components on the circuit board can lead to malfunctions. Such internal hardware faults are a frequent cause of total failure or impaired communication within the unit.

External factors like ingress of moisture can result in corrosion and short circuits. Similarly, loose connectors or damaged cable harnesses represent potential sources of failure that should be checked before removing the control unit.

How do you recognize a defect in control unit 570679500?

A defect in control unit 570679500 typically manifests as a permanently illuminated, flashing, or glowing SRS warning light on the instrument cluster. Often, communication with the control unit via a diagnostic tool is no longer possible, or internal fault codes such as “component defective” or “airbag internal error” appear.

The clearest indication is the active airbag warning light, signaling to the driver that the safety system is inoperative and airbags would not deploy in the event of a crash.

An additional clear symptom emerges during workshop diagnostics: the control unit fails to respond to requests from the diagnostic tool. In some cases, while the fault memory can be read, critical internal fault codes cannot be erased.

Rarely, secondary symptoms may occur, such as deactivation of the fuel shut-off valve or failure of the speedometer illumination, indicating a serious internal defect in the SRS control unit.

In which vehicles is control unit 570679500 used?

Part number 570679500, along with its compatible counterpart 12772222, is specific to the second-generation Saab 9‑5 (YS3G), manufactured in model years 2010 and 2011. Airbag24 offers professional and reliable repair services for this specialized control unit.

At Airbag24, we repair part number 570679500 for the following model:

Saab 9‑5 (YS3G), model years 2010–2011

How does the repair of control unit 570679500 proceed?

After sending the removed control unit to Airbag24, a professional analysis is performed using specialized diagnostic tools. Our technicians address the defect directly—whether by resetting stored crash data or repairing internal electronics. Finally, the unit undergoes testing and is ready for reinstallation as a plug-and-play solution.

First, it’s advisable to confirm at a qualified workshop that the issue truly lies within the control unit itself, rather than in the wiring or sensors. This saves time and avoids unnecessary expenses.

Following removal and shipment to Airbag24, the unit undergoes an initial inspection to pinpoint the exact fault—for example, an internal hardware defect or a lockout caused by crash data.

The actual repair involves erasing crash data or replacing faulty electronic components on the circuit board. Subsequently, the control unit undergoes comprehensive functional testing to ensure proper operation of all systems.

We provide 2 years' statutory liability for defects on every repair.