Airbag control unit with part number 77960-SNB-J230-M1

What does the airbag control unit 77960-SNB-J230-M1 do?

The airbag control unit 77960-SNB-J230-M1 controls the restraint system (SRS) in Honda. It evaluates the signals from the crash sensors and decides in an accident, within fractions of a second, whether airbags and seatbelt pretensioners are triggered. The system is monitored continuously, and faults are reported to the airbag warning light.

At the same time it documents the event: after an accident the unit stores crash data and locks itself.

These two functions make the control unit the central point of the system.

Why does the control unit 77960-SNB-J230-M1 fail?

The most common cause in the 77960-SNB-J230-M1 is crash data stored after an accident, even if no airbag has deployed. Aged components, cold solder joints, moisture on plug connections and voltage spikes are also possible causes.

A normal diagnostic tool cannot delete crash data. This task is carried out by Airbag24 during the repair.

The other causes concern electronics and connections. Voltage spikes occur, for example, when the battery is weak or a jump-start cable is connected.

How can you tell that the 77960-SNB-J230-M1 is defective?

A defect in the 77960-SNB-J230-M1 shows up first on the airbag warning light in the instrument cluster, which lights up permanently or intermittently. In addition, a fault message in the instrument cluster, no connection between the diagnostic tool and the control unit, or a fault memory that cannot be cleared may occur.

You should take these signs seriously. In an emergency, airbags and seatbelt pretensioners may possibly not deploy if the control unit has a fault.

Even without a visible message in the instrument cluster, the diagnostic tool may return a finding that you should not ignore.

Which vehicles is the 77960-SNB-J230-M1 fitted in?

Compare your vehicle with the list before removal. The control unit 77960-SNB-J230-M1 is fitted in these vehicles: Honda Civic 8th generation (2005-2011).

The vehicles at a glance:

• Honda Civic 8th generation (2005-2011)

Comparing the part number on the label of the removed unit with this page only confirms that it is the correct unit. You should have the fault memory read out beforehand, because only this result shows whether the control unit is defective or a plug or a 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-J230-M1 work?

First have the fault memory read out and attach the printout, then disconnect the battery. Only then remove the control unit 77960-SNB-J230-M1 and create a repair order online. Processing at Airbag24 usually takes 3–4 working days.

The sequence serves your safety, which is why it is fixed.

Airbag24 examines the unit on the test bench. Defective components are repaired or replaced, stored crash data is deleted and a function test is carried out, after which your own unit is returned.

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-J230-M1 get to Airbag24?

You can send your 77960-SNB-J230-M1 in as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 sends the unit back by UPS.

Pack the unit shock-proof and enclose the printed repair order.