Airbag control unit with part number 77960-SNB-G221-M1

What does the airbag control unit 77960-SNB-G221-M1 do?

The airbag control unit 77960-SNB-G221-M1 belongs to the restraint system (SRS) of Honda. It evaluates the crash sensors, selects the airbags and seatbelt pretensioners in an accident within milliseconds, and checks the system continuously. After an accident, it stores crash data and locks itself.

If it detects a fault, the airbag warning light in the instrument cluster comes on. In this way a fault becomes visible without a diagnostic tool being necessary.

Why does the control unit 77960-SNB-G221-M1 fail?

Stored crash data is the most common cause, even if no airbag has deployed. A standard diagnostic tool does not make it disappear. Further causes in brief:

• aged electronic components
• cold solder joints
• moisture and corrosion on plugs
• voltage spikes, for example from a weak battery or a jump start

Which cause actually applies is only determined by the test on the test bench.

How can you tell that the 77960-SNB-G221-M1 is defective?

The airbag warning light lights up permanently or intermittently; in addition, an error message may appear in the instrument cluster. The diagnostic tool also gets no connection to the control unit 77960-SNB-G221-M1, and the fault memory cannot be cleared.

The airbag warning light in the instrument cluster is a direct sign that the system has registered a fault. It lights up either permanently or intermittently, and either is a reason to have the system examined.

In an emergency, airbags and seatbelt pretensioners could then fail to deploy.

Which vehicles is the 77960-SNB-G221-M1 fitted in?

Airbag24 has assigned the vehicles listed here to this part number. The airbag control unit 77960-SNB-G221-M1 is fitted in these vehicles: Honda Civic 8th generation (2005-2011).

An overview of the vehicles:

• Honda Civic 8th generation (2005-2011)

A match of the part number on the unit with this page only confirms that you have the right control unit. Having the fault memory read out before removal, on the other hand, shows whether the unit itself is defective or whether a plug or cable is affected.

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-G221-M1 work?

First, read out the fault memory and keep the log. Then disconnect the battery; only then remove the control unit 77960-SNB-G221-M1. Processing at Airbag24 usually takes 3–4 working days.

Afterwards, create a repair order online and send the unit in well packed. In our workshop, the unit is then checked, defective components are repaired, the crash data is erased and a function test is carried out. The customer's own unit goes back to them.

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-G221-M1 get to Airbag24?

The control unit 77960-SNB-G221-M1 is sent as a parcel, or a UPS collection can be booked for an extra charge. The return after the repair is made by UPS.

The printed repair order belongs in the parcel, and the unit is packed shock-proof.