Airbag control unit with part number 38910-55R00

What does the airbag control unit 38910-55R00 do?

In the Suzuki, the airbag control unit 38910-55R00 is the central unit of the restraint system (SRS). It evaluates the crash sensors, determines within milliseconds which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. After a crash, it stores crash data and locks itself.

The unit reports faults via the airbag warning light in the instrument cluster. The system checks its components again and again during operation, without the driver noticing anything as long as everything is in order.

Seatbelt pretensioners pull the belt tight in a crash. The control unit triggers them together with the airbags, so that both systems react in a coordinated way.

Why does the control unit 38910-55R00 fail?

The most common cause is stored crash data that has accumulated after an accident, even if no airbag has deployed. A normal diagnostic tool does not remove it. Other causes are:

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

That the airbags remained undamaged says little about the condition of the control unit. The crash data remains stored all the same.

How can you tell that the 38910-55R00 is defective?

The airbag warning light in the instrument cluster lights up continuously or intermittently. An error message appears in the instrument cluster, the diagnostic tool cannot find the control unit, and the fault memory cannot be erased. In an emergency, airbags and seatbelt pretensioners may then possibly fail to trigger.

The warning light indicates the defect, so it does not remain hidden. Anyone who ignores the hint risks the system not working in an emergency.

Which vehicles is the 38910-55R00 fitted in?

The control unit 38910-55R00 is fitted in these vehicles: Suzuki Swift RZ/AZ (2017-2020) and RZ/AZ Facelift (2020-2024).

The assignment is stored as a list:

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

The comparison of the part number on the label with this page confirms that the unit fits. Whether the control unit is defective or a plug or cable is the cause is shown only by the fault memory that has been read out. Therefore have it read out beforehand.

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

How does the repair of the 38910-55R00 work?

First have the fault memory read out and attach the log, then disconnect the battery. Only then remove the control unit. Next, create a repair order online and pack the unit well for dispatch.

Airbag24 checks the unit that has been sent in, repairs defective components, erases the stored crash data and carries out a function test. The unit then goes back to you. Processing at Airbag24 takes 3–4 working days as a rule.

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 38910-55R00 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. Airbag24 returns the repaired unit to you by UPS.

Put the printed repair order into the parcel. The control unit is packed shock-resistant.