Airbag control unit with part number 38910-56P20

What does the airbag control unit 38910-56P20 do?

The airbag control unit 38910-56P20 is the central unit of the SRS restraint system in Suzuki. It evaluates the crash sensors, determines in an accident which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. Faults are reported via the airbag warning light.

In the event of a fault, the control unit stores notes in the fault memory, which can be read out later.

After an accident, the unit stores crash data and locks itself.

Why does the control unit 38910-56P20 fail?

Stored crash data is the most common cause, even when no airbag has been triggered, and a normal diagnostic tool does not delete it. Aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes are also possible causes.

The crash data stays in the unit until Airbag24 removes it during the repair.

Aged components and cold solder joints can impair the electronics. Moisture and corrosion attack the plug connections, and voltage spikes occur, for example, with a weak battery or when jump-starting.

How can you tell that the 38910-56P20 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. An error message appears, the diagnostic tool finds no connection to the control unit, or the fault memory cannot be cleared. In that case, airbags and seatbelt pretensioners may not trigger in an emergency.

• Airbag warning light on permanently
• Airbag warning light on intermittently
• Error message in the instrument cluster
• Fault memory cannot be cleared

The light alone does not reveal the cause, but it reliably shows that something is wrong.

Which vehicles is the 38910-56P20 fitted in?

The 38910-56P20 is fitted in these vehicles: Suzuki Vitara LY and S. Check your model against this information.

The list shows the assignment:

• Suzuki Vitara LY
• Suzuki Vitara S

The label on the removed unit must match this page, and then you can see that it is the right unit. Whether the control unit is defective or a plug or cable is the cause only becomes clear from a fault memory read out beforehand.

For the same vehicles, we also repair control units with the part numbers 16244579, 38910-54P00, 3891052D10, 3891065J50, 3891086R00, 3F900-76S00.

How does the repair of the 38910-56P20 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, and only then remove the control unit. Next, create the repair order online and send the unit in, well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit, replaces defective components, deletes stored crash data and performs a function test at the end. The unit is then 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 38910-56P20 get to Airbag24?

You send the control unit 38910-56P20 as a parcel, or alternatively book a UPS collection for an extra charge. Airbag24 sends it back to you by UPS after the repair.

The printed repair order belongs in the parcel, and the unit must be packed to resist impact.