Airbag control unit with part number 77960-SNA-X030-M1

What does the airbag control unit 77960-SNA-X030-M1 do?

The 77960-SNA-X030-M1 controls the restraint system for Honda. It evaluates the signals from the crash sensors and decides within a few milliseconds in a crash on the triggering of airbags and seatbelt pretensioners. It signals faults via the airbag warning light.

The unit runs in the background and checks the components of the system without interruption.

After a crash, it stores crash data and locks itself.

Why does the control unit 77960-SNA-X030-M1 fail?

The 77960-SNA-X030-M1 most often fails because of crash data that remained in the memory after the accident, even if no airbag triggered. A standard diagnostic tool cannot erase anything there. Aged components, cold solder joints, moisture and voltage spikes add to this.

The crash data remains as an entry in the unit until it is removed during repair.

Wear in the electronics can also play a role, as can corrosion on the plugs after moisture has penetrated. Voltage spikes from a weak battery or a jump start place additional strain on the unit.

How can you tell that the 77960-SNA-X030-M1 is defective?

The airbag warning light in the instrument cluster reports the defect in the 77960-SNA-X030-M1 as soon as it lights up constantly or intermittently. A fault message in the instrument cluster, no connection to the diagnostic tool or a fault memory that cannot be erased also indicate this. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

It is precisely this light that makes the state of the system visible before a failure occurs.

The recommendation is therefore to read out the fault memory promptly.

Which vehicles is the 77960-SNA-X030-M1 fitted in?

The assignment applies to Honda. The control unit 77960-SNA-X030-M1 is fitted in these vehicles: Honda Civic 8th generation (2005-2011).

These vehicles come into consideration:

• Honda Civic 8th generation (2005-2011)

Comparing the part number on the label of the removed unit with this page ensures that the correct unit is being checked. Only the fault memory read out beforehand reveals whether the control unit is defective. A plug or a cable can be the cause as well.

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-SNA-X030-M1 work?

First have the fault memory read out and enclose the log with the order. Then disconnect the battery; only then remove the 77960-SNA-X030-M1. Processing at Airbag24 generally takes 3–4 working days.

Then create the repair order online and send the well-packed unit. At Airbag24 it first goes onto the test bench. There, defective components are replaced, stored crash data is erased and a function test is completed. Once everything is checked, your own unit is returned 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-SNA-X030-M1 get to Airbag24?

A parcel or a UPS collection booked for an extra charge brings the control unit 77960-SNA-X030-M1 to Airbag24. The return after repair is by UPS.

Pack the unit shockproof and enclose the printed repair order.