Airbag control unit with part number 77960-T5A-X610-M1

What does the airbag control unit 77960-T5A-X610-M1 do?

The airbag control unit 77960-T5A-X610-M1 coordinates the restraint system (SRS) of Honda. It evaluates the crash sensors, determines within milliseconds in a crash which airbags and seatbelt pretensioners are triggered, and checks the system permanently during operation. It shows faults via the airbag warning light.

The evaluation of the sensors runs continuously while the vehicle is in operation. The unit detects deviations in the measured values and checks its own outputs to the triggers.

After an accident, it stores crash data and locks itself. No further details on this state are needed here.

Why does the control unit 77960-T5A-X610-M1 fail?

Stored crash data from an accident is the most common cause, even if no airbag has deployed. A normal diagnostic tool cannot erase this data. Other causes include aged electronic components, cold solder joints, moisture and corrosion on the plugs, and voltage spikes from the battery or jump-starting.

The accident does not have to have been spectacular, because the unit stores whatever it classifies as an event. The diagnostic tool reads this data out, but cannot remove it.

The other causes tend to develop gradually. Electronics age, solder joints can stay cold, and moisture finds its way to plug connections. A weak battery or starting with external power also brings voltage spikes into the vehicle's electrical system.

How can you tell that the 77960-T5A-X610-M1 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently. In addition, a fault message appears in the instrument cluster, and the diagnostic tool gets no connection to the control unit. The fault memory also cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not trigger.

• The airbag warning light flashes or stays on permanently.
• The instrument cluster shows a fault message about the airbag system.
• The diagnostic tool does not find the control unit.
• The fault memory remains after an attempt to clear it.

A warning in the instrument cluster is not a coincidence but a signal from the system. Take it seriously, even if the vehicle drives normally.

Which vehicles is the 77960-T5A-X610-M1 fitted in?

The control unit 77960-T5A-X610-M1 is fitted in these vehicles: Honda Jazz GK (2013-2023).

The following overview lists the vehicles that are recorded in our documents for this part number.

• Honda Jazz GK (2013-2023)

On the one hand, compare the part number on the label of the unit with this page. This only shows that it is the right unit. On the other hand, have the fault memory read out before you remove anything. Only this log shows whether the control unit is defective or whether a plug or a cable triggered the fault.

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-X610-M1 work?

First have the fault memory read out and enclose the log. Then disconnect the battery and remove the control unit. Afterwards create a repair order online and send in the well-packed unit. Airbag24 tests it, replaces defective components and erases stored crash data.

This sequence is binding for safety reasons. Removal begins only once the log is available and the battery is disconnected.

At Airbag24, a function test follows the test bench. Processing usually takes 3–4 working days, and this time covers only checking, repairing and testing at Airbag24. 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-X610-M1 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

Put the printed repair order into the parcel. Pack the unit shock-resistant before you hand it over.