Ferrari 849 Testarossa F173M airbag control unit repair

What is a Ferrari 849 Testarossa F173M airbag control unit?

The airbag control unit is the central control unit of the restraint system (SRS) in the Ferrari 849 Testarossa F173M. It processes the signals from the crash sensors and, in an accident, decides within milliseconds which airbags and seatbelt pretensioners fire. If it has registered an accident, it stores crash data and locks itself.

Such a unit is fitted in the Ferrari 849 Testarossa F173M (since 2025). During operation it continuously monitors the whole system and indicates detected faults via the airbag warning light. As soon as it detects a fault, it often deactivates the airbag function, so that you notice the defect.

As long as everything works properly, you do not notice the unit at all. Only an illuminated warning light or a stored entry in the fault memory brings it to your attention. Airbag24 from Berlin repairs control units of this kind by mail-in service: you remove your own unit, create a repair order online and send it in. After the repair, exactly this unit is returned to you.

Why is the Ferrari 849 Testarossa F173M airbag control unit defective?

Most often the cause is crash data stored in the unit after an accident, even if no airbag deployed. Ageing electronic components, cold solder joints, corrosion or moisture at the connectors, as well as voltage spikes, for example from a weak battery or jump-starting, may also be responsible.

A standard diagnostic tool cannot remove this crash data. The control unit therefore stays locked, even if the vehicle looks undamaged from the outside and the airbags were not opened.

Signs of a defect include an airbag warning light that stays on continuously, a fault memory that cannot be cleared, or a diagnostic tool that cannot establish a connection. If electronics or plug contacts have caused the fault, it sometimes appears only sporadically at first and becomes permanent only over time.

Common error codes for Ferrari 849 Testarossa F173M airbag control unit repair

The known codes relate to an internal control unit fault and a battery voltage that is too low. They are read from the fault memory of the Ferrari 849 Testarossa F173M with a diagnostic tool.

Below you will find the codes and their meanings that are known to us for this model. The list is for guidance and is not exhaustive.

• 01 → Internal control unit fault
• 06 → Battery voltage too low

A single code does not prove that the control unit is defective, since an airbag module, a wire or a connector can equally be the cause. Which cause applies only becomes clear when the unit is tested.

What part numbers are available for the Ferrari 849 Testarossa F173M airbag control unit repair?

You will find the part number on the label of your control unit. It determines the exact version, since depending on equipment and year of manufacture it also differs within a model series, which is why you enter it in the repair order for your vehicle.

We do not yet have a list for this model, so simply read the number from the label and enter it yourself in the repair order. This assigns your unit to the matching version. Whether it is actually defective is only established by reading out the fault memory or by testing.

The route to repair: first have the fault memory read out, then disconnect the battery and remove the control unit. Then create a repair order online and send the unit in. Testing, repairing and checking usually take 3–4 working days at Airbag24. 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.