Airbag control unit with part number 77960-T5A-H410-M2

What does the airbag control unit 77960-T5A-H410-M2 do?

The airbag control unit 77960-T5A-H410-M2 acts as the control centre of the restraint system (SRS) of Honda. It processes the data from the crash sensors and decides within milliseconds in an accident which airbags and seatbelt pretensioners are triggered. Faults appear via the airbag warning light.

The unit constantly monitors the components of the system. If it detects an abnormality, it stores it in the fault memory so that it can be traced later.

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

Why does the control unit 77960-T5A-H410-M2 fail?

Stored crash data is the most common cause, regardless of whether an airbag was triggered. A normal diagnostic tool cannot erase it. Aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes are also possible causes.

The recording remains in the memory of the unit.

The other causes concern the electronics. Over time components age, solder joints can go cold, and moisture and corrosion attack plug connections. Voltage spikes, for example from a weak battery or a jump start, put additional strain on the electronics.

How can you tell that the 77960-T5A-H410-M2 is defective?

An airbag warning light in the instrument cluster that stays on permanently or intermittently is the clearest sign. Also an error message in the instrument cluster, a diagnostic tool with no connection to the control unit, and a fault memory that cannot be cleared. In that case airbags and seatbelt pretensioners may possibly not deploy in an emergency.

The warning light shows the detected fault as soon as the system recognises it. It is therefore the most important everyday indication when the restraint system has a problem.

If it lights up, have the restraint system checked promptly so that the cause is established.

Which vehicles is the 77960-T5A-H410-M2 fitted in?

The control unit 77960-T5A-H410-M2 is fitted in these vehicles: Honda Jazz GK (2013-2023). The list below helps to compare with your own car.

Here follow the vehicles for which we have this part number.

• Honda Jazz GK (2013-2023)

Before you send in the control unit, two notes help. Comparing the part number on the label of the removed unit with this page only ensures that you have the right unit in front of you. Having the fault memory read out, on the other hand, 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-T5A-A212-M1, 77960-T5A-E010-M1, 77960-T5A-E011-M1, 77960-T5A-E020-M1, 77960-T5A-F010-M1, 77960-T5A-F011-M1.

How does the repair of the 77960-T5A-H410-M2 work?

Before the control unit is removed, have the fault memory read out and attach the log. Then disconnect the battery, remove the control unit, create a repair order online and send the unit well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 examines the submitted unit on the test bench. Defective components are repaired, crash data erased and a function test carried out. The own unit then goes back to you.

The sequence up to removal serves safety at the restraint system.

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-T5A-H410-M2 get to Airbag24?

The unit reaches Airbag24 as a parcel, or you book a UPS collection for an extra charge. Airbag24 sends it back by UPS after repair.

Enclose the printed repair order in the parcel and pack the control unit shock-resistantly.