Airbag control unit with part number 77960-TS9-K010-M4

What does the airbag control unit 77960-TS9-K010-M4 do?

The SRS control unit 77960-TS9-K010-M4 is the central unit of the restraint system for Honda. It evaluates the signals of the crash sensors, decides in an accident within milliseconds on airbags and seatbelt pretensioners, and monitors the system continuously. It indicates faults via the airbag warning light.

After an accident, the unit stores crash data and locks itself. In doing so, it works closely with the crash sensors, whose signals it continuously assesses.

Why does the control unit 77960-TS9-K010-M4 fail?

The most common cause is crash data left behind after an accident, even without a triggered airbag. A conventional diagnostic tool cannot erase it. Other factors include aging electronics, cold solder joints, damp and corrosion on connectors, and voltage spikes, for example from a weak battery or when starting with jump leads.

At Airbag24 the repair includes erasing the crash data. You do not need to do anything beforehand.

The other causes cannot be clearly named from the outside and only become clear through an inspection.

How can you tell that the 77960-TS9-K010-M4 is defective?

The airbag warning light in the instrument cluster lights up constantly or at times. The instrument cluster also shows a fault message. The diagnostic tool cannot find the control unit, and the fault memory cannot be cleared.

If any of these signs appear, airbags and seatbelt pretensioners may not deploy in an emergency.

A prompt check of the system is therefore sensible, even if the light only comes on now and then.

Which vehicles is the 77960-TS9-K010-M4 fitted in?

The control unit 77960-TS9-K010-M4 is fitted in these vehicles: Honda Civic 9th generation (2011-2017).

Below you will find the vehicles that are assigned to this part number.

• Honda Civic 9th generation (2011-2017)

Comparing the part number on the label with this page only shows that it is the right unit. Have the fault memory read out before removal, because only its contents show whether the control unit itself is defective or whether a connector 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-TS9-K010-M4 work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only now remove the control unit 77960-TS9-K010-M4, then create the repair order online and send the unit off well packed.

At Airbag24 the unit is checked on the test bench, defective components are replaced and the stored crash data is erased. A function test follows. Processing usually takes 3–4 working days.

You then receive your own unit back. 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-TS9-K010-M4 get to Airbag24?

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

Enclose the printed repair order and make sure the unit is packed shockproof.