Airbag control unit with part number 77960-SNB-Q016-M1

What does the airbag control unit 77960-SNB-Q016-M1 do?

The airbag control unit 77960-SNB-Q016-M1 controls the restraint system (SRS) for Honda. It evaluates the crash sensors and decides in an accident, within fractions of a second, which airbags and seatbelt pretensioners are triggered.

In addition, the unit monitors the entire system continuously and reports faults via the airbag warning light in the instrument cluster. The light is the visible sign to you that the restraint technology is not fully ready.

After an accident, the unit stores crash data and then locks itself. This data is the reason why a control unit may have to be considered separately after an accident, and this applies even if the airbags have remained unchanged.

Why does the control unit 77960-SNB-Q016-M1 fail?

The most common cause with the 77960-SNB-Q016-M1 is crash data stored after an accident, even if no airbag has deployed; an ordinary diagnostic tool cannot erase it. Other causes are aged electronics, cold solder joints, moisture and corrosion, and voltage spikes.

Crash data remains in the memory until it is erased during a repair. Airbag24 erases it as part of the repair, so the unit goes back to you without this data.

With the other causes, electronic components age over time. Solder joints on the circuit board can go cold, and moisture or corrosion impair plug connectors.

Voltage spikes, for example from a weak battery or jump-starting, additionally strain the circuit. Which cause applies in the specific case only the check will show.

How can you tell that the 77960-SNB-Q016-M1 is defective?

You can recognise a defect on the 77960-SNB-Q016-M1 by the airbag warning light in the instrument cluster, which lights up permanently or intermittently, and by an error message in the instrument cluster. If there is no connection to the diagnostic tool or the fault memory cannot be cleared, the suspicion is confirmed.

If the system is disturbed, airbags and seatbelt pretensioners may not be able to deploy in an emergency. A timely check of the warning light is therefore important before the vehicle is used further in daily life.

Which vehicles is the 77960-SNB-Q016-M1 fitted in?

You can check whether your vehicle belongs to this group using the vehicle data in your papers. The control unit 77960-SNB-Q016-M1 is intended for Honda and fitted in these vehicles: Honda Civic 8th generation (2005-2011).

The known vehicles are compiled here:

• Honda Civic 8th generation (2005-2011)

Have the fault memory read out before removal, because only the result shows whether the control unit itself is affected or whether a plug or a cable is the cause. Then compare the part number on the label of the removed unit with this page. This comparison only confirms that it is the right unit; it says nothing about the cause.

For the same vehicles, we also repair control units with the part numbers 77960-S02-A840-M3, 77960-SMG-G014-M1.

How does the repair of the 77960-SNB-Q016-M1 work?

On the 77960-SNB-Q016-M1, first have the fault memory read out and enclose the log, then disconnect the battery and only then remove the control unit. Create the repair order online, then pack the unit well and send it in. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24, the control unit goes on the test bench. There, the team replaces defective components, erases the crash data and carries out a functional test. Afterwards, your own, repaired unit goes 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 77960-SNB-Q016-M1 get to Airbag24?

You send the 77960-SNB-Q016-M1 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

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