Airbag control unit with part number 77960-T00-Y410-M2

What does the airbag control unit 77960-T00-Y410-M2 do?

The airbag control unit 77960-T00-Y410-M2 controls the restraint system (SRS) in Honda vehicles. It processes the signals from the crash sensors, decides within milliseconds in a collision about airbags and seatbelt pretensioners, and monitors the system continuously.

The unit outputs faults via the airbag warning light in the instrument cluster, together with an error message.

After an accident, it creates crash data and locks itself. This lock is lifted only by a repair.

Why does the control unit 77960-T00-Y410-M2 fail?

Crash data from an accident is the most common cause on the 77960-T00-Y410-M2, even if no airbag fired. Other causes include aged electronics, cold solder joints, moisture and corrosion at connectors, and voltage spikes.

Crash data stored in the memory cannot be erased with a normal diagnostic tool. This particular step belongs to the repair.

The other causes are of a general nature. Electronic components age, solder joints can be cold, and moisture promotes corrosion on connectors. Voltage spikes occur, for example, with a weak battery or when jump-starting.

How can you tell that the 77960-T00-Y410-M2 is defective?

On the 77960-T00-Y410-M2, the airbag warning light in the instrument cluster indicates a defect when it lights up permanently or intermittently. This is accompanied by error messages, a missing connection to the diagnostic tool and a fault memory that cannot be cleared. In an emergency, the airbags and seatbelt pretensioners may then fail to deploy.

Typical signs at a glance:

• airbag warning light on permanently
• airbag warning light coming on only intermittently
• error message in the instrument cluster
• diagnostic tool has no connection to the control unit

The light is a clear indication that you should follow up on.

Which vehicles is the 77960-T00-Y410-M2 fitted in?

The 77960-T00-Y410-M2 is fitted in these vehicles: Honda City 6th generation (2008-2013).

The vehicles we know of for this control unit:

• Honda City 6th generation (2008-2013)

Comparing the part number on the label with this page ensures that the unit matches. Have the fault memory read out beforehand as well, because only the result shows whether the control unit is defective or a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 77810-T9DT81ZA, 77960-T00-Y810-M2.

How does the repair of the 77960-T00-Y410-M2 work?

First have the fault memory read out at the 77960-T00-Y410-M2 and attach the log. Then disconnect the battery and only then remove the control unit. Processing at Airbag24 normally takes 3–4 working days.

Next, create a repair order online and send the unit in well packed.

Airbag24 checks the unit on the test bench, repairs defective components, deletes the crash data and carries out a function test. Then 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-T00-Y410-M2 get to Airbag24?

You send the 77960-T00-Y410-M2 as a package, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Enclose the printed repair order in the package and pack the unit shock-proof.