Airbag control unit with part number 38910-57LA0

What does the airbag control unit 38910-57LA0 do?

The airbag control unit 38910-57LA0 is the central control unit of the restraint system (SRS) for Suzuki. It checks the signals from the crash sensors and, in an accident, decides within fractions of a second which airbags and seatbelt pretensioners are triggered.

It monitors the entire system continuously and reports faults via the airbag warning light in the instrument cluster.

If an accident has occurred, the control unit stores crash data and locks itself. The next section explains what this means for the repair.

Why does the control unit 38910-57LA0 fail?

Most often the cause is crash data stored after an accident, even if no airbag has deployed; an ordinary diagnostic tool cannot clear it. Other causes include ageing components, cold solder joints, moisture and corrosion, and voltage spikes.

• ageing electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump-start

As long as no repair takes place, the crash data remains stored in the unit.

How can you tell that the 38910-57LA0 is defective?

Signs include an airbag warning light that stays on permanently or intermittently, an error message in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared. In that case the airbags and seatbelt pretensioners may possibly not deploy in an emergency.

• Airbag warning light on permanently or intermittently
• Fault message in the instrument cluster
• No connection to the control unit via the diagnostic tool
• Fault memory cannot be cleared

Take these signs seriously and have the system checked.

Which vehicles is the 38910-57LA0 fitted in?

The 38910-57LA0 is fitted in these vehicles: Suzuki Kizashi RE91S.

The models at a glance:

• Suzuki Kizashi RE91S

First compare the part number on the label of the removed unit with this page. Have the fault memory read out before removal, because the log shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 38910-57L00, 395057L105, 4815057L01.

How does the repair of the 38910-57LA0 work?

First have the fault memory read out and enclose the log. Then disconnect the battery; only after that remove the control unit. Finally create the repair order online and send in the well-packed unit.

Airbag24 examines the unit on the test bench and replaces defective components where necessary. The stored crash data is erased, followed by a function test. Testing, repairing and checking at Airbag24 are usually scheduled for 3–4 working days. Your own unit then goes back 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 38910-57LA0 get to Airbag24?

You can send the unit as a parcel or book a UPS collection for an extra charge. Airbag24 sends the unit back to you by UPS after the repair. Enclose the printed repair order with the parcel and pack the unit shock-resistant.

A parcel with firm packaging protects the unit from knocks during transport.