Airbag control unit with part number 77960-TEA-S810-M4

What does the airbag control unit 77960-TEA-S810-M4 do?

The airbag control unit 77960-TEA-S810-M4 controls the restraint system (SRS) for Honda. It reads the signals from the impact sensors, decides in a crash within milliseconds which airbags and seatbelt pretensioners are triggered, and checks the system continuously. Faults it finds are passed on via the airbag warning light.

After an accident, the unit stores crash data and locks itself.

In the vehicle, it connects the sensors with the triggering elements. Its condition therefore determines the entire protective effect.

Why does the control unit 77960-TEA-S810-M4 fail?

Stored crash data from an earlier accident is the most common cause, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Wear and connection problems add to this.

Airbag24 removes this data in a targeted way during the repair. Erasing it with the usual tools does not succeed.

The other causes are linked to ageing, moisture and electrical loads. They do not necessarily show up straight away.

How can you tell that the 77960-TEA-S810-M4 is defective?

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

Typical signs at a glance:

• airbag warning light in the instrument cluster, on permanently or intermittently
• error message in the instrument cluster
• diagnostic tool receives no connection to the control unit
• fault memory cannot be cleared

The warning light is the most direct indication the vehicle gives itself. It is therefore worth looking at the instrument cluster after every start.

Which vehicles is the 77960-TEA-S810-M4 fitted in?

The airbag control unit 77960-TEA-S810-M4 is fitted in these vehicles: Honda Civic 10th generation (2015-2022).

The models for which this unit is stored are as follows:

• Honda Civic 10th generation (2015-2022)

Compare the part number on the label of the removed unit with this page. This only confirms that you have the right unit. Have the fault memory read out beforehand, because only this log 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-SMG-G014-M1, 77960-TBA-A01, 77960-TBA-A02, 77960-TBA-A03, 77960-TBA-A04, 77960-TBA-A05.

How does the repair of the 77960-TEA-S810-M4 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only afterwards remove the control unit. Create the repair order online and send the unit in, well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, repairs defective components, erases the stored crash data and carries out a function test. A function test follows.

Your own unit comes back to you afterwards. 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-TEA-S810-M4 get to Airbag24?

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

Put the printed repair order into the parcel and pack the control unit shockproof.