Airbag control unit with part number 38910-57RA0

What does the airbag control unit 38910-57RA0 do?

The airbag control unit 38910-57RA0 is responsible for the restraint system (SRS) at Suzuki. It processes the signals from the impact sensors, decides in a crash whether airbags and seatbelt pretensioners are triggered, and monitors the system. Detected faults appear on the airbag warning light.

After an accident the unit stores crash data and locks itself. Only the repair lifts the lock.

While driving the control unit works unobtrusively, and you notice nothing of it as long as there is no fault.

Why does the control unit 38910-57RA0 fail?

The most common cause is crash data from an accident, even if no airbag was triggered in it; a normal diagnostic tool cannot erase it. Further triggers include aged components, cold solder joints, moisture and corrosion on plugs, and voltage spikes.

Such a recording is an event held by the unit. It remains until the repair removes it.

The other triggers include wear on contacts and components, as well as fluctuations in the vehicle electrical system.

A voltage that rises briefly, for example when connecting a jump start, can set a fault.

How can you tell that the 38910-57RA0 is defective?

The warning light for the airbag system lights up in the instrument cluster permanently or intermittently. A further sign is an error message in the instrument cluster, as well as a diagnostic tool that cannot connect to the control unit, or a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The light is the indication you notice first. It shows a fault in the restraint system and calls for clarification.

A fault message that returns after switching off the ignition and restarting indicates that the cause still exists.

Which vehicles is the 38910-57RA0 fitted in?

The 38910-57RA0 is fitted in these vehicles: Suzuki Swift RZ/AZ (2017-2020) and RZ/AZ Facelift (2020-2024).

You will find the vehicles from our assignment for this control unit here:

• Suzuki Swift RZ/AZ (2017-2020)
• Suzuki Swift RZ/AZ Facelift (2020-2024)

Comparing the part number on the label of the removed unit with this page ensures that it is the right unit. Whether the control unit itself is affected only shows in the fault memory, which you have read out before removal. A plug or a cable can be the cause just as well.

For the same vehicles, we also repair control units with the part numbers 38910-62J12-000, 38SC001R9RH.

How does the repair of the 38910-57RA0 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, remove the unit, create a repair order online and send the control unit in well packed. At Airbag24 processing generally takes 3–4 working days.

Airbag24 inspects the unit on the test bench, replaces defective components, erases stored crash data and carries out a functional test. Then your 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 38910-57RA0 get to Airbag24?

You send the control unit as a parcel to Airbag24 or book a UPS collection for an extra charge. After the repair it is returned by UPS.

Put the printed repair order into the parcel, and pack the control unit shock-proof.