Airbag control unit with part number 77960-SNB-U830-M1

What does the airbag control unit 77960-SNB-U830-M1 do?

The control unit 77960-SNB-U830-M1 coordinates the airbag restraint systems in Honda vehicles as the airbag control unit. It checks the crash sensors, evaluates their signals and determines in a crash which airbags and seatbelt pretensioners fire.

Monitoring runs continuously between events. Detected faults are stored in the fault memory, and the airbag warning light in the instrument cluster displays them.

After an accident, the control unit creates crash data and then switches into a locked state.

Why does the control unit 77960-SNB-U830-M1 fail?

The most common cause is crash data that remains in the memory after an accident, even without an airbag deployment; a normal diagnostic tool cannot erase it. Further causes lie in the electronics themselves or in their environment.

The further causes in brief:

• Aged electronic components
• Cold solder joints
• Moisture and corrosion at plug connections
• Voltage spikes, for example from jump-starting or a weak battery

During the repair at Airbag24, the crash data is erased. The other causes are looked for during the test bench check.

How can you tell that the 77960-SNB-U830-M1 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and an error message appears in the instrument cluster. In addition, the diagnostic tool cannot establish a connection to the control unit, or the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The airbag warning light makes a fault visible as soon as the system has detected it. It is the first signal you notice while driving, and that is why you should take it seriously.

Have the system checked promptly if any of these signs appear. A warning in the instrument cluster is no trifle.

Which vehicles is the 77960-SNB-U830-M1 fitted in?

The control unit 77960-SNB-U830-M1 is fitted in these vehicles: Honda Civic 8th generation (2005-2011).

The following list shows which vehicles are recorded for this part number.

• Honda Civic 8th generation (2005-2011)

Comparing the part number on the label of the removed unit with this page only ensures that it is the correct unit. Have the fault memory read out beforehand. 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 77960-S02-A840-M3, 77960-SMG-G014-M1.

How does the repair of the 77960-SNB-U830-M1 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, remove the control unit, create a repair order online and send the unit in well packed.

Airbag24 checks the unit on the test bench, replaces defective components, erases the crash data and carries out a function test. The unit then goes back to you.

Checking, repair and testing at Airbag24 usually take 3–4 working days.

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-U830-M1 get to Airbag24?

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

Put the printed repair order into the parcel and pack the unit shock-proof.