Airbag control unit with part number 192789

What does the airbag control unit 192789 do?

The 192789 is an airbag control unit, that is, the control centre of the SRS restraint system for Ferrari. It receives the messages from the crash sensors, evaluates them and, in an accident, triggers the appropriate airbags and seatbelt pretensioners.

The unit continuously monitors the entire airbag circuit and checks the connections to sensors and actuators. If it detects a fault, it stores it in the fault memory and shows it via the warning light.

If an accident occurs, it evaluates the signals within milliseconds. It then stores the crash data and locks itself.

Why does the control unit 192789 fail?

The most common cause for the 192789 is crash data stored after an accident, even if no airbag was triggered. A normal diagnostic tool cannot remove this data. Other causes to consider are aged components, moisture and voltage spikes.

The entry is created in the control unit as soon as it has processed an accident, whether or not airbags were triggered. Airbag24 removes the crash data during the repair.

Other causes are:

• aged electronic components on the circuit board
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or jump-starting

How can you tell that the 192789 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, and a fault message appears in the instrument cluster. In addition, the diagnostic tool cannot reach the control unit 192789, and the fault memory cannot be cleared.

The airbag warning light is the most important sign. If it shows a fault, the airbags and seatbelt pretensioners may fail to trigger in an emergency.

Even if the vehicle continues to drive, a warning light that stays on permanently or intermittently is a reason to have the system checked.

Which vehicles is the 192789 fitted in?

The control unit 192789 is fitted in these vehicles: Ferrari F430 Spider F131M (2005-2009); Ferrari F430 Scuderia F131M (2007-2009); Ferrari F430 F131M (2004-2009); Ferrari Scuderia Spider 16M F131 (2008-2009). Ideally, check before removal whether your vehicle is listed.

The overview contains the vehicles known to us for this control unit.

• Ferrari F430 Spider F131M (2005-2009)
• Ferrari F430 Scuderia F131M (2007-2009)
• Ferrari F430 F131M (2004-2009)
• Ferrari Scuderia Spider 16M F131 (2008-2009)

Comparing the part number on the label with this page only ensures that it is the right unit. Whether the control unit is defective, or whether a plug or cable is the cause, is shown only by reading out the fault memory. Have this done beforehand.

For the same vehicles, we also repair control units with the part numbers 216005, 231704.

How does the repair of the 192789 work?

First have the fault memory read out and attach the log to the order. Only then disconnect the battery and remove the control unit. Then create a repair order online and send in the well-packed unit.

This sequence is mandatory for safety reasons. The control unit may only be removed after the battery has been disconnected.

Airbag24 tests the unit on the test bench, renews defective components, erases the stored crash data and carries out a function test. Processing at Airbag24 usually takes 3–4 working days; this time covers only testing, repairing and checking. Afterwards your own unit is returned to you. Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 192789 get to Airbag24?

Your control unit 192789 reaches us by parcel; alternatively, UPS collects it from you for an extra charge. It goes back by UPS once the repair is complete.

Enclose the printed repair order and pack the unit so that it is shock-resistant.