Airbag control unit with part number 77960-T5A-X830-M1

What does the airbag control unit 77960-T5A-X830-M1 do?

The airbag control unit 77960-T5A-X830-M1 forms the central control unit of the restraint system (SRS) in Honda. It evaluates the crash sensors and decides within milliseconds in a crash which airbags and seatbelt pretensioners are triggered.

The unit monitors the system continuously and shows faults on the airbag warning light in the instrument cluster.

After an accident, it stores crash data and locks itself.

Why does the control unit 77960-T5A-X830-M1 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed, and a normal diagnostic tool cannot erase it. Other possible causes include aged electronic components, cold solder joints, moisture and corrosion on plugs, and voltage spikes.

Airbag24 erases the crash data as part of the repair.

Electronic components age, and solder joints can go cold over time. Moisture and corrosion at plug connections disrupt the contact between components and wiring.

Voltage spikes occur, for example, with a weak battery or when jump-starting. Only the fault memory shows which cause applies to your vehicle.

How can you tell that the 77960-T5A-X830-M1 is defective?

A defect shows up as an airbag warning light that stays on permanently or intermittently, as a fault message in the instrument cluster, as a diagnostic tool with no connection to the control unit, and as a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not trigger.

In detail, these are the signs:

• Airbag warning light stays on permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool finds no connection to the control unit
• Fault memory cannot be cleared

The warning light shows the defect. If any of these signs appear, have the system checked promptly.

Which vehicles is the 77960-T5A-X830-M1 fitted in?

The assignment applies to Honda. The control unit 77960-T5A-X830-M1 is fitted in these vehicles: Honda Jazz GK (2013-2023).

Here are the vehicles in detail:

• Honda Jazz GK (2013-2023)

On the one hand, compare the part number on the label of the removed unit with this page. This only establishes that it is the right unit. On the other hand, have the fault memory read out beforehand. Only this result 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-X830-M1 work?

First you have the fault memory read out and enclose the log. Then you disconnect the battery and only then remove the control unit. Afterwards you create a repair order online and send the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 tests the unit on the test bench and replaces defective components. Afterwards, Airbag24 erases stored crash data and carries out a function test, after which 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-T5A-X830-M1 get to Airbag24?

Either you send the unit as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

The printed repair order goes into the parcel. Pack the unit shock-resistant.