Airbag control unit with part number 38910-64M10

What does the airbag control unit 38910-64M10 do?

The airbag control unit 38910-64M10 coordinates the restraint system (SRS) of Suzuki. It checks the signals from the crash sensors and decides in an accident within a few milliseconds which airbags and seatbelt pretensioners are triggered. After an accident, it stores crash data and locks itself.

In addition, the unit monitors the components of the system continuously and reports faults via the airbag warning light.

This makes it the point where all sensor and trigger signals come together. Without it, the restraint system loses its reliable control.

Why does the control unit 38910-64M10 fail?

Stored crash data is the most common cause, because the unit records it after an accident, even if no airbag was deployed; a normal diagnostic tool cannot erase it. Further triggers are aged components, cold solder joints, moisture at plug connections and voltage spikes.

Stored crash data remains in the memory until it is erased during a repair. It is therefore the first thing checked when looking for a fault.

The other causes act over a longer period. Components age, solder joints can turn cold, and voltage spikes, for example from a weak battery or jump-starting, put strain on the unit.

How can you tell that the 38910-64M10 is defective?

The airbag warning light lights up constantly or intermittently, and an error message appears in the instrument cluster. In addition, no connection to the control unit is established, or the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then not trigger in an emergency.

Typical signs at a glance:

• airbag warning light on constantly or intermittently
• error message in the instrument cluster
• diagnostic tool finds no connection to the control unit
• fault memory cannot be cleared

A warning light that does not go out after starting is already a finding. Have the system checked promptly in that case.

Which vehicles is the 38910-64M10 fitted in?

The control unit 38910-64M10 is fitted in these vehicles: Suzuki S-Cross JY; Suzuki SX4 S-Cross.

The list shows the vehicles for which this number is recorded.

• Suzuki S-Cross JY
• Suzuki SX4 S-Cross

Compare the part number on the label of the removed unit with this page, so that you know it is the right unit. Also have the fault memory read out before you remove the control unit. Only this result shows whether the unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 38910-61M00, 38910-61M01, 38910-61M10, 38910-61M11, 38910-61M20, 38910-61M21.

How does the repair of the 38910-64M10 work?

The fault memory is read out first, and the log goes with the unit. After that, the battery is disconnected, and only then do you remove the control unit. Processing at Airbag24 usually takes 3–4 working days.

After you create the repair order online, you send the unit in. Airbag24 checks it on the test bench, replaces defective components, erases stored crash data and carries out a function test. Afterwards, your own unit comes back to you.

The time of 3–4 working days refers only to this work at Airbag24.

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 38910-64M10 get to Airbag24?

You send the unit in as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS. Put the printed repair order into the parcel, and pack the unit shock-proof.

Use a sturdy carton with enough padding so that the unit stays protected on the way.