Airbag control unit with part number 77960-T7A-X610-M2

What does the airbag control unit 77960-T7A-X610-M2 do?

The airbag control unit 77960-T7A-X610-M2 manages the restraint system (SRS) of Honda. It reads the crash sensors, decides in the event of an impact within milliseconds whether to trigger the airbags and seatbelt pretensioners, and monitors the system continuously. It shows faults via the airbag warning light in the instrument cluster.

The sensors continuously supply measured values to the unit. The control unit checks these values and only decides to trigger when a real event has occurred.

After an accident, the unit stores crash data and then locks itself. The unit thus also serves as an event recorder.

Why does the control unit 77960-T7A-X610-M2 fail?

Crash data stored in the memory after an accident are the most common cause, and this holds even if no airbag has deployed. They cannot be removed with a normal diagnostic tool. Other causes are aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data are not noticeable while driving. The other causes in detail:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or jump-starting

Which cause applies in an individual case is shown only by the check carried out by Airbag24, not by guesswork.

How can you tell that the 77960-T7A-X610-M2 is defective?

The airbag warning light in the instrument cluster shows the defect in the 77960-T7A-X610-M2 when it lights up permanently or intermittently. In addition, messages may appear, the diagnostic tool may have no connection to the control unit, and the fault memory may not be clearable. In an emergency, airbags and seatbelt pretensioners may fail to deploy.

The following signs are noticeable in detail:

• airbag warning light on permanently or intermittently
• error message in the instrument cluster
• no connection to the diagnostic tool
• fault memory that cannot be cleared

The light therefore makes the defect visible early, which is exactly why a prompt check is worthwhile.

Which vehicles is the 77960-T7A-X610-M2 fitted in?

The 77960-T7A-X610-M2 is fitted in these vehicles: Honda HR-V 2nd generation (2015-2022).

The assignment lists these models:

• Honda HR-V 2nd generation (2015-2022)

Compare the part number on the unit with this page in advance. This shows you whether it is the correct unit. The source of the fault is only determined by the fault memory, which you have read out before removal.

For the same vehicles, we also repair control units with the part numbers 77960-3V0-A81, 77960-T7S-A21, 77960-T7S-A212-M2, 77960T7SK410M2.

How does the repair of the 77960-T7A-X610-M2 work?

Have the fault memory read out and keep the log. Only then disconnect the battery. Afterwards, remove the unit, create the repair order online and pack the unit carefully.

At Airbag24, the unit is checked on the test bench, the faulty components are repaired, the crash data are deleted and a function test is carried out. Airbag24 needs usually 3–4 working days for this. Afterwards 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-T7A-X610-M2 get to Airbag24?

You send the unit as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends the control unit 77960-T7A-X610-M2 back to you by UPS. Include the printed repair order with the parcel.

Make sure the packaging is shock-proof.