Airbag control unit with part number 77960-TV0-G910-M4

What does the airbag control unit 77960-TV0-G910-M4 do?

The airbag control unit 77960-TV0-G910-M4 forms the central control unit of the restraint system (SRS) for Honda. It processes the signals of the crash sensors and decides in an impact, within milliseconds, whether to trigger airbags and seatbelt pretensioners. After an accident it stores crash data and locks itself.

The unit checks the restraint system continuously. If it detects a fault, it reports it via the airbag warning light in the instrument cluster.

While driving, you usually do not notice the control unit. It works in the background and only becomes visible in an emergency or in the event of a fault.

Why does the control unit 77960-TV0-G910-M4 fail?

The most common cause is crash data stored after an accident, even if no airbag has triggered. Other causes are ageing components, cold solder joints, moisture and corrosion, and voltage spikes.

Crash data remain stored in the unit after an accident, and a normal diagnostic tool cannot erase them. Airbag24 deletes them during the repair.

Other sources of faults also occur:

• ageing electronic components
• cold solder joints
• moisture and corrosion on plug connections
• voltage spikes, for example from a weak battery or jump-starting

How can you tell that the 77960-TV0-G910-M4 is defective?

A defect shows itself when the airbag warning light in the instrument cluster stays on permanently or intermittently, or an error message appears in the instrument cluster. In addition, the diagnostic tool cannot establish a connection to the control unit, and the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then fail to trigger in an emergency.

The warning light is the clearest sign the control unit itself gives. Do not ignore it: anyone who ignores it loses track of the state of the system.

Whether the cause lies in the control unit itself only becomes clear from the fault memory read-out. Plugs and cables can produce the same signs.

Which vehicles is the 77960-TV0-G910-M4 fitted in?

The control unit 77960-TV0-G910-M4 is fitted in these vehicles: Honda Civic 9th generation (2011-2017). You can tell whether your car belongs to this list from make, model and year of construction.

The list shows the vehicles in which this unit occurs.

• Honda Civic 9th generation (2011-2017)

First compare the part number on the label of the removed unit with this page; that confirms the correct unit. Second, have the fault memory read out beforehand. Only this result shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 77960-TS4-U411-M1, 77960-TS4-U811-M2, 77960-TS4-Z611-M1, 77960-TS6-H711-M1, 77960-TT0-T011-M1, 77960-TT0-Y610-M2.

How does the repair of the 77960-TV0-G910-M4 work?

Before removal, have the fault memory read out and attach the log, then disconnect the battery. After that, remove the control unit, create a repair order online and send in the unit well-packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, deletes stored crash data and carries out a function test. Afterwards the unit goes back to you.

The order of the steps serves safety. As an additional note for your protection: 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-TV0-G910-M4 get to Airbag24?

You send the control unit 77960-TV0-G910-M4 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

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