Airbag control unit with part number 77960-T5A-X411-M1

What does the airbag control unit 77960-T5A-X411-M1 do?

The airbag control unit 77960-T5A-X411-M1 is the control unit of the restraint system (SRS) in Honda. It processes signals from the crash sensors, decides in a collision whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

The unit reports any faults it finds via the airbag warning light in the instrument cluster.

An accident causes the unit to store crash data and switch to the locked state.

Why does the control unit 77960-T5A-X411-M1 fail?

Crash data stored after an accident is the most frequent first cause, even if no airbag fired. Aged electronic components, cold solder joints, moisture and corrosion at connectors, and voltage spikes, for example from a weak battery or jump-starting, also come into play.

A unit that has not fired an airbag can still hold crash data in its memory. A standard diagnostic tool cannot remove it.

The other causes concern the condition of the electronics and their connections. The examination decides which of them applies.

How can you tell that the 77960-T5A-X411-M1 is defective?

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

The warning light is a direct indication of the control unit that cannot be missed.

Even a single illumination justifies having the fault memory checked.

Which vehicles is the 77960-T5A-X411-M1 fitted in?

You will find the vehicles below. The control unit 77960-T5A-X411-M1 is fitted in these vehicles: Honda Jazz GK (2013-2023).

Here follows the list of affected models:

• Honda Jazz GK (2013-2023)

Compare the part number on the label of the removed unit with this page, and you will know that it is the right unit. Have the fault memory read out beforehand, since only that shows whether the control unit is defective or whether a connector 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-X411-M1 work?

First have the fault memory read out and attach the log. Then disconnect the battery, and only afterwards remove the control unit. Last, create a repair order online and send the well-packed unit.

At Airbag24 the control unit first goes to the test bench. There, defective components are replaced and the crash data deleted before a function test follows. Processing at Airbag24 takes 3–4 working days as a rule, after which your own unit goes back 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-T5A-X411-M1 get to Airbag24?

You either hand in the unit as a parcel, or book a UPS collection for an extra charge. Airbag24 sends it back by UPS after the repair.

Put the printed repair order into the parcel and pack the control unit shock-proof.