Airbag control unit with part number 77960-TR0-A012-M1

What does the airbag control unit 77960-TR0-A012-M1 do?

In the Honda, the airbag control unit 77960-TR0-A012-M1 manages the restraint system (SRS). It checks the signals of the crash sensors, determines which airbags and seatbelt pretensioners trigger in a crash, and continuously monitors the connections to all components.

If the unit reports a fault, the airbag warning light comes on. This message is the first information you receive as the driver.

After an accident it stores crash data and locks itself.

Why does the control unit 77960-TR0-A012-M1 fail?

Crash data stored after an accident is the most common cause, even when no airbag has triggered. It cannot be deleted with a normal diagnostic tool. Other causes are aged electronics, cold solder joints, moisture at plug connections and voltage spikes, for example from a weak battery or jump-starting.

Aged components lose reliability over time, and solder joints can become brittle.

The cause can be determined unambiguously only through a targeted inspection.

How can you tell that the 77960-TR0-A012-M1 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently. In addition a fault message appears, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then not be able to trigger in an emergency.

The light makes the finding visible and is therefore the most important sign.

Which cause applies is shown by the inspection.

Which vehicles is the 77960-TR0-A012-M1 fitted in?

The airbag control unit 77960-TR0-A012-M1 is fitted in these vehicles: Honda Civic 9th generation (2011-2017).

The list with model and engine variant follows:

• Honda Civic 9th generation (2011-2017)

Comparing the part number on the label of the removed unit with this page is a step that confirms the right unit. Having the fault memory read out beforehand is the step that shows whether the control unit 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-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-TR0-A012-M1 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only afterwards remove the control unit. Then create a repair order online and pack the unit well before sending it in. Airbag24 checks it on the test bench, renews defective components, deletes stored crash data and carries out a function test; afterwards your own unit goes back to you.

Processing at Airbag24 usually takes 3–4 working days. This period refers exclusively to the work there.

The order protects during work on the restraint system. 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-TR0-A012-M1 get to Airbag24?

You send the unit as a parcel, or you book a UPS collection for an extra charge. Enclose the printed repair order. After the repair UPS brings the control unit back to you.

A shock-proof packaging applies to both routes.