Airbag control unit with part number 38910-86R50

What does the airbag control unit 38910-86R50 do?

The 38910-86R50 is the airbag control unit of the restraint system (SRS) for Suzuki. From the signals of the crash sensors it calculates whether and which airbags and seatbelt pretensioners trigger in an accident, and it does so within milliseconds.

In operation it checks all connected components continuously. If it finds a fault, the airbag warning light in the instrument cluster lights up.

If an accident has been registered, it stores crash data and locks itself. The lock can only be lifted by the repair.

Why does the control unit 38910-86R50 fail?

The most common cause is crash data that was stored in the control unit after an accident, even if no airbag was triggered. Also involved are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump start.

Crash data cannot be erased with an ordinary diagnostic tool. Airbag24 erases it specifically during the repair.

The remaining triggers concern the electronics themselves and their connections. Whether they are present is shown only by the check on the test bench.

How can you tell that the 38910-86R50 is defective?

A defect shows itself mainly through the airbag warning light in the instrument cluster, which lights up permanently or intermittently.

• Airbag warning light on permanently or intermittently
• Fault messages in the instrument cluster
• No connection between the diagnostic tool and the control unit
• Fault memory cannot be cleared

As long as the defect exists, airbags and seatbelt pretensioners may not deploy in an emergency.

Which vehicles is the 38910-86R50 fitted in?

The 38910-86R50 is fitted in these models: Suzuki Vitara LY and S.

The vehicles assigned to this part number are shown in the list that follows.

• Suzuki Vitara LY
• Suzuki Vitara S

First compare the part number on the label of the removed unit with this page: this only shows whether it is the correct unit. Also have the fault memory read out, because this log shows whether the control unit is really defective or whether a plug or cable is the cause.

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 38910-86R50 work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the control unit. Processing at Airbag24 usually takes 3–4 working days.

Next you create a repair order online and send the unit off well packed.

Airbag24 checks it on the test bench, replaces defective components, erases the stored crash data and carries out a function test. The own unit then comes 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 38910-86R50 get to Airbag24?

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

Pack the printed repair order into the parcel and protect the unit against shocks.