Airbag control unit with part number 77960-T5A-X630-M1

What does the airbag control unit 77960-T5A-X630-M1 do?

The airbag control unit 77960-T5A-X630-M1 coordinates the restraint system (SRS) of Honda in the vehicle. It processes the sensor signals, selects within milliseconds in an accident which airbags and seatbelt pretensioners should fire, and monitors the system continuously. After an accident it stores crash data and locks itself.

It reports faults via the airbag warning light and keeps them recorded in memory.

For the system to work reliably, the control unit, sensors and wiring work closely together.

Why does the control unit 77960-T5A-X630-M1 fail?

Crash data from an accident is the most common cause, even if no airbag fired. Aged components, cold solder joints, moisture and corrosion at plugs, and voltage spikes also contribute.

Crash data stays in the unit after the accident. A usual diagnostic scanner cannot remove it, which is why the problem does not go away on its own.

The other causes arise from ageing, moisture or corrosion on contacts. Voltage spikes occur, for example, when the battery is weak or when jump-starting.

How can you tell that the 77960-T5A-X630-M1 is defective?

A defect shows up at the airbag warning light in the instrument cluster and in other irregularities. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

Typical signs are:

• The airbag warning light is on constantly or only at times
• An error message appears in the instrument cluster
• The diagnostic tool gets no connection to the control unit
• The fault memory cannot be cleared

The light checks itself after the ignition is switched on. If it stays on, have the fault memory read out.

Plugs and cables can also cause such signs.

Which vehicles is the 77960-T5A-X630-M1 fitted in?

This vehicle has the control unit 77960-T5A-X630-M1 fitted: Honda Jazz GK (2013-2023). The information relates to Honda.

You can find more detail about the vehicle in the list:

• Honda Jazz GK (2013-2023)

Comparing the part number on the removed unit with this page only ensures it is the right unit. The fault memory is read out before removal; 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-X630-M1 work?

Before removal, have the fault memory read out and enclose the log, then disconnect the battery and remove the control unit. Then create the repair order online and send the unit off well packed. At Airbag24 processing usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, clears stored crash data and runs a function test. Your own unit then goes back to you.

The 3–4 working days cover only checking, repairing and testing by 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-X630-M1 get to Airbag24?

You send the unit as a parcel or have it collected by UPS for an extra charge. After the repair, UPS brings the unit back to you.

Enclose the printed repair order with the parcel, and pack the unit shock-proof.