Airbag control unit with part number 77960-TS8-3050-M4

What does the airbag control unit 77960-TS8-3050-M4 do?

The 77960-TS8-3050-M4 works as an airbag control unit in the restraint system (SRS) of Honda. It processes the measured values of the crash sensors, determines in an accident within milliseconds which airbags and seatbelt pretensioners are triggered, and checks the system continuously.

Reported faults are indicated via the airbag warning light. After an accident, the control unit stores crash data and locks itself. The ongoing check serves to make deviations visible as early as possible.

Why does the control unit 77960-TS8-3050-M4 fail?

Stored crash data from an earlier accident is the most common cause, even if no airbag was triggered. A normal diagnostic tool cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes from a weak battery or jump-starting.

An accident in which no airbag is triggered can nevertheless leave crash data in the unit.

The remaining causes lie in the electronics and the connections. Components age, solder joints can go cold, and moisture or corrosion affect plug connections. Airbag24 erases the crash data during the repair.

How can you tell that the 77960-TS8-3050-M4 is defective?

A defect shows itself through the airbag warning light in the instrument cluster, which lights up constantly or intermittently, through error messages in the instrument cluster, through a missing connection to the diagnostic tool, and through a fault memory that cannot be cleared. In that case, airbags and seatbelt pretensioners may not trigger in an emergency.

Typical signs at a glance:

• Airbag warning light lights up constantly or intermittently
• Error message in the instrument cluster
• No connection between the diagnostic tool and the control unit
• Fault memory cannot be cleared

This warning signal should therefore be acted on promptly, before the situation gets worse.

Which vehicles is the 77960-TS8-3050-M4 fitted in?

The 77960-TS8-3050-M4 is fitted in the following vehicles: Honda Civic 9th generation (2011-2017).

The vehicles in detail:

• Honda Civic 9th generation (2011-2017)

Whether the part number on the label of your removed unit matches this page only shows that you have the right unit in front of you. Whether the control unit itself is defective is shown only by the read-out fault memory, because a plug or a cable can also be the cause. Therefore have it read out beforehand.

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-TS8-3050-M4 work?

First have the fault memory read out, enclose the log and then disconnect the battery; only then remove the control unit. Afterwards, create a repair order online and send the unit in well packed. Airbag24 tests it on the test bench, repairs defective components, erases stored crash data and carries out a function test.

Processing at Airbag24 itself, i.e. the testing, repairing and function test, usually takes 3–4 working days. After that, your own unit is returned 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-TS8-3050-M4 get to Airbag24?

Shipping is done either by a parcel that you send yourself, or by a UPS collection that you book for an extra charge. The return journey after the repair is handled by Airbag24 via UPS.

Enclose the printed repair order in the parcel. Pack the control unit shock-proof, so that it is protected in transit.