Airbag control unit with part number 38910-71L00

What does the airbag control unit 38910-71L00 do?

The airbag control unit 38910-71L00 is the central control unit of the restraint system (SRS) of Suzuki. It evaluates the signals from the impact sensors, decides within milliseconds in an accident which airbags and seatbelt pretensioners fire, and monitors the system continuously. It indicates faults via the airbag warning light.

During operation, it continuously checks the power supply, the firing circuits and the plug connections. Every irregularity is recorded in the fault memory.

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

Why does the control unit 38910-71L00 fail?

The most common cause is stored crash data from an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Other causes include ageing electronics, cold solder joints, moisture in the plugs and voltage spikes.

The crash data remains in the unit after the event. A common diagnostic tool cannot remove it. Airbag24 removes it during the repair.

Electronic components age, solder joints can become cold, and moisture attacks plug connections. These causes can also occur together.

Voltage spikes, for example from a weak battery or jump-starting, also put strain on the electronics.

How can you tell that the 38910-71L00 is defective?

Typical signs are an airbag warning light that lights up permanently or intermittently, a fault message in the instrument cluster, a missing connection between the diagnostic tool and the control unit, and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

• 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

The light indicates the fault, and that is reason enough to have the system examined.

Which vehicles is the 38910-71L00 fitted in?

The 38910-71L00 is fitted in these vehicles: Suzuki Swift FZ/NZ (2010-2013) and FZ/NZ Facelift (2013-2017).

The list shows the models in which this part number is used.

• Suzuki Swift FZ/NZ (2010-2013)
• Suzuki Swift FZ/NZ Facelift (2013-2017)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the right unit. Have the fault memory read out beforehand, because only this result shows whether the control unit is defective or whether a plug or cable is the cause.

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

How does the repair of the 38910-71L00 work?

First have the fault memory read out and attach the log. Then disconnect the battery, remove the control unit 38910-71L00, create a repair order online and send the unit in good packaging.

The sequence is for safety reasons. Removal only takes place once the battery is disconnected.

Processing at Airbag24 usually takes 3–4 working days. There the unit is checked on the test bench, defective components are replaced, crash data is erased and a functional test is carried out. Your own 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 38910-71L00 get to Airbag24?

You send the control unit 38910-71L00 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Place the printed repair order in the parcel and pack the unit shock-proof.