Airbag control unit with part number 77960-TGH-J110-M2

What does the airbag control unit 77960-TGH-J110-M2 do?

At Honda, the airbag control unit 77960-TGH-J110-M2 takes over control of the restraint system (SRS). It evaluates the crash sensors, assesses the strength and direction of an impact, and decides which airbags and seatbelt pretensioners are triggered. It also checks the entire system continuously.

If there is a fault, the control unit reports it via the airbag warning light in the instrument cluster.

After an accident it stores crash data and locks itself. Only the repair lifts this lock.

Why does the control unit 77960-TGH-J110-M2 fail?

The most common cause of the 77960-TGH-J110-M2 is crash data stored after an accident, even if no airbag has triggered. A standard diagnostic tool does not remove it. Other triggers include aged components, cold solder joints, moisture at the plugs and voltage spikes.

An impact without airbag deployment can still leave crash data behind. This data stays in memory, and diagnosis alone does not remove it.

The other causes develop gradually. Components age, solder joints can give way, and moisture leads to corrosion at the plug connections. Voltage spikes, for example from a weak battery or a jump-start, additionally strain the electronics.

How can you tell that the 77960-TGH-J110-M2 is defective?

A defect in the 77960-TGH-J110-M2 shows when the airbag warning light in the instrument cluster is on permanently or intermittently, an error message appears, or the diagnostic tool makes no contact with the control unit. In an emergency, airbags and seatbelt pretensioners may then possibly fail to deploy.

The following signs stand out:

• The airbag warning light is on permanently or intermittently.
• An error message appears in the instrument cluster.
• The diagnostic tool makes no contact with the control unit.
• The fault memory cannot be cleared.

The warning light is the first indication that the system has detected a fault. Have the fault memory read out promptly.

Which vehicles is the 77960-TGH-J110-M2 fitted in?

The part number on the unit decides which model it belongs to. The airbag control unit 77960-TGH-J110-M2 is fitted in these vehicles: Honda Civic 10th generation (2015-2022).

The models for this number are shown in the list:

• Honda Civic 10th generation (2015-2022)

Two checks make sense before removal. The part number on the label either matches this page or it does not; that only establishes the identity of the unit. The fault memory, by contrast, shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 77960-3A2-A810-M2, 77960-3A2-A820-M2, 77960-3A2-A830-M2, 77960-TBA-A01, 77960-TBA-A02, 77960-TBA-A03.

How does the repair of the 77960-TGH-J110-M2 work?

First have the fault memory of the 77960-TGH-J110-M2 read out; the log goes into the parcel. Only then disconnect the battery and remove the control unit. Afterwards create the repair order online. Processing at Airbag24 usually takes 3–4 working days.

Pack it well and send it in. Airbag24 examines it on the test bench, replaces defective parts, erases stored crash data and runs a function test. Your own unit then comes back 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-TGH-J110-M2 get to Airbag24?

The control unit 77960-TGH-J110-M2 goes to Airbag24 either as a parcel, or you arrange a UPS collection for an extra charge. The return after the repair is likewise made via UPS.

The printed repair order goes into the parcel. Make sure the unit is packed shock-proof.