Volvo EX90 airbag control unit repair⁽¹⁾

What should be considered with Volvo EX90 airbag control units?

The airbag control unit of the Volvo EX90 evaluates the signals from the crash sensors, triggers the airbags and belt tensioners, and monitors the entire restraint system. If it detects a fault, the airbag warning light in the instrument cluster comes on. Airbag24 repairs the control unit you send in.

Based on the sensor signals, the control unit decides whether and which airbags are triggered. It also checks the firing circuits and the power supply of the modules. A defect in the control unit can impair the function of the entire system, which is why the airbag warning light should never be ignored.

After an accident, the control unit stores crash data and locks itself. In this case, proper processing also includes erasing the crash data. Airbag systems are safety-relevant, so work on the system should be left to a specialist workshop.

Which Volvo EX90 generations are there?

At Airbag24, the Volvo EX90 is listed as one model series: Series 1, built since 2024. Production is still ongoing.

The Volvo EX90 is a fully electric large SUV from Volvo. Series production began in 2024; in early September 2024, the first vehicles were delivered in Europe and the United States.

Within one model series, hardware and software versions can differ. For this reason, the part number on the unit determines the exact version, not the model year alone.

• Series 1 (since 2024, production ongoing): the model series of the EX90 listed by Airbag24

How do I identify my Volvo EX90 airbag control unit?

The part number on the label of the control unit determines the exact version. The model year and the equipment of your vehicle must also be taken into account when assigning it.

The label is usually located directly on the control unit. The part number should be noted in full, and the model year and the vehicle identification number (VIN) should be kept at hand. This allows the version to be determined unambiguously.

Fault codes provide a first indication. As examples for the EX90, we cite the codes SRS-0115 (driver airbag firing circuit open or short circuit), U0151-00 (data bus: SRS control unit does not respond) and SRS-0005 (supply voltage too low). A single code, however, does not prove a defect in the control unit. The cause may also lie in the wiring, the firing circuit or the battery.

What airbag equipment does the Volvo EX90 have?

According to the manufacturer, the Volvo EX90 has front airbags, side airbags in the front seats, curtain airbags for the window seats and a knee airbag on the driver's side. Which modules are fitted in a given version depends on the equipment and the market.

On the driver's side there are two front airbags: one in the steering wheel and a knee airbag below the steering wheel, behind a panel. The passenger side has one front airbag. The side airbags of the front seats are integrated into the seats and deploy in side-on collisions.

The curtain airbags (inflatable curtains) protect the seats by the windows. After deployment, they stay inflated longer to offer protection even during repeated impacts. The exact scope for a specific version is given in the manufacturer's data sheet for the respective market.

In brief, the procedure is as follows: have the fault memory read out, disconnect the battery before removal, and remove the control unit. Then create a repair order online and send in the unit. Processing usually takes 3–4 working days (checking, repairing, testing).

The repaired control unit returns with all vehicle data and is ready for use immediately after reinstallation. No coding or programming is required.