Ferrari 849 Testarossa Spider airbag control unit repair

What is a Ferrari 849 Testarossa Spider airbag control unit?

The airbag control unit in the Ferrari 849 Testarossa Spider is the central control unit of the restraint system (SRS). It reads the signals from the crash sensors and, in an accident, decides within milliseconds which airbags and seatbelt pretensioners to deploy. After an accident it stores crash data and locks itself.

When you switch on the ignition, the airbag warning light comes on briefly and then goes out. At that moment the control unit runs its self-test. If the light stays on afterwards, the unit has found something abnormal while checking its components and wiring.

The control unit is fitted in the Ferrari 849 Testarossa Spider (since 2025). It also monitors the whole system continuously while you drive and reports any faults it detects via the light in the instrument cluster. As a safety-relevant component from Ferrari, it works together with sensors, airbag modules and seatbelt pretensioners.

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

Most often the cause is crash data stored after an accident, even if no airbag deployed; an ordinary diagnostic tool cannot remove it. Ageing electronic components, cold solder joints, moisture with corrosion on connectors and voltage spikes are other possible causes.

So one accident is enough for the control unit in the Ferrari 849 Testarossa Spider to stop working, regardless of whether the airbags opened. The stored data stays in the unit and the fault persists, even though the vehicle looks fine from the outside.

Regardless of accidents, age plays a part. Components on the circuit board wear out, solder joints lose contact, and moisture getting in makes connectors corrode. Voltage spikes also stress the electronics, for example when the battery is weak or the car is jump-started.

These signs point to it: the airbag warning light stays on permanently, entries remain in the fault memory despite attempts to clear them, or the diagnostic tool cannot connect to the control unit at all.

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

The error codes in the Ferrari 849 Testarossa Spider show which part of the restraint system the fault occurs in, for example in the control unit itself or in the power supply. They can only be read out with a diagnostic tool.

The following codes are known for this model:

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

A single code cannot reliably tell you whether the control unit is actually defective. Sometimes connectors, wiring or an airbag module are behind it. Only an inspection of the unit gives certainty about where the fault lies.

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

You will find the part number, which defines the exact version of the unit, on the label of the control unit. Depending on equipment and year of manufacture, different numbers occur within one model series. Note it down from your unit and enter it in the repair order.

We do not currently keep a list of part numbers for the Ferrari 849 Testarossa Spider. Once you have removed the control unit, take the number from the label and note it in the order. That way we match your unit to the right version. Whether there is a defect, however, only shows once the fault memory has been read out or the unit has been inspected in our workshop.

The route to repair looks like this: first have the fault memory read out, then disconnect the battery and remove the control unit. After that, create a repair order online and send the unit to Airbag24. Checking, repairing and testing there usually take 3–4 working days.

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.