Airbag control unit with part number 77960-SNB-Y622-M1

What does the airbag control unit 77960-SNB-Y622-M1 do?

In the vehicle from Honda, the airbag control unit 77960-SNB-Y622-M1 coordinates the restraint system (SRS). From the signals of the crash sensors it calculates which airbags and seatbelt pretensioners are activated in an impact, within milliseconds.

It also monitors the entire system continuously and shows faults via the airbag warning light.

After an accident the control unit stores crash data and locks itself.

Why does the control unit 77960-SNB-Y622-M1 fail?

Stored crash data most often causes problems with the 77960-SNB-Y622-M1, even when no airbag has triggered. Aged components, cold solder joints, moisture and corrosion on plug connectors, or voltage spikes can also be the cause.

Crash data cannot be erased with a normal diagnostic tool. Airbag24 removes it during the repair.

The other causes include aging electronic components, cold solder joints, and moisture with corrosion at plug connectors.

Voltage spikes, for example from a weak battery or jump-starting, belong to them as well.

How can you tell that the 77960-SNB-Y622-M1 is defective?

You can recognise a defect on the 77960-SNB-Y622-M1 by the airbag warning light, which lights up permanently or intermittently. A fault message, a missing connection to the diagnostic tool or a fault memory that cannot be cleared are also signs.

• Airbag warning light lights up permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool finds no connection to the control unit
• Fault memory cannot be cleared

Airbags and seatbelt pretensioners may then not trigger in an emergency. Such a finding should therefore be checked promptly.

Which vehicles is the 77960-SNB-Y622-M1 fitted in?

The 77960-SNB-Y622-M1 is fitted in: Honda Civic 8th generation (2005-2011).

The models recorded for this part number are listed here:

• Honda Civic 8th generation (2005-2011)

First check whether the part number on the label of the removed unit matches this page. That only confirms that it is the correct unit. Have the fault memory read out beforehand, because 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-Y622-M1 work?

First have the fault memory read out and attach the log. Then disconnect the battery; only afterwards remove the control unit 77960-SNB-Y622-M1. Then create a repair order online and pack the unit well for shipping.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test before the unit goes back to you. Processing at Airbag24 usually takes 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-Y622-M1 get to Airbag24?

You can send the control unit 77960-SNB-Y622-M1 as a parcel. Alternatively, you book a UPS collection for an extra charge; after the repair, Airbag24 returns it by UPS.

Print the repair order and put it into the parcel. Pack the unit shock-proof.