Airbag control unit with part number 38910-78RC0

What does the airbag control unit 38910-78RC0 do?

The airbag control unit 38910-78RC0 is the central electronics of the restraint system (SRS) for Suzuki. It evaluates the crash sensors, determines in a collision within milliseconds the triggering of airbags and seatbelt pretensioners, and monitors the system without interruption. It signals faults via the airbag warning light.

During driving, the control function hardly stands out and only shows itself when a fault occurs.

After an accident, the unit stores crash data and locks itself. Only the repair lifts the lock.

Why does the control unit 38910-78RC0 fail?

The most common cause in the control unit 38910-78RC0 is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Further causes are ageing electronic components, cold solder joints, moisture and corrosion at plugs, and voltage spikes.

The memory keeps the entry until it is removed during a repair. Airbag24 takes care of the erasing as part of the repair.

The other causes concern mainly the electronics itself and the connections to the vehicle electrical system.

How can you tell that the 38910-78RC0 is defective?

The airbag warning light in the instrument cluster lights up constantly or intermittently. In addition there is a fault message, the diagnostic tool finds no connection to the control unit 38910-78RC0, and the fault memory cannot be cleared.

In that case, airbags and seatbelt pretensioners may fail to trigger in an emergency, and this is exactly what the warning light indicates.

Therefore have the fault memory read out promptly, to narrow down the cause.

Which vehicles is the 38910-78RC0 fitted in?

The control unit 38910-78RC0 is fitted in these vehicles: Suzuki Jimny JB64.

The following list shows the vehicles stored for this part number.

• Suzuki Jimny JB64

Comparing the label of the removed unit with this page only ensures that it is the correct unit. Whether it is defective is shown only by the protocol of the fault memory, because a plug or a cable can also be the cause.

For the same vehicles, we also repair control units with the part numbers 38910-81A10.

How does the repair of the 38910-78RC0 work?

First have the fault memory read out and enclose the log. Then disconnect the battery before you remove the control unit 38910-78RC0. Next, create a repair order online and send the well-packed unit in.

At Airbag24 the unit is checked on the test bench, defective components are replaced, crash data is erased and a function test is carried out. Afterwards your own unit goes back to you.

Processing at Airbag24 usually takes 3–4 working days. This information refers only to checking, repairing and testing.

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 38910-78RC0 get to Airbag24?

Shipping as a parcel is possible, as is a UPS collection for an extra charge. After the repair, Airbag24 returns the control unit 38910-78RC0 by UPS.

Print the repair order and put it in the parcel. Pack the unit shockproof.