Airbag control unit with part number 77960-TR0-Y012-M2

What does the airbag control unit 77960-TR0-Y012-M2 do?

The airbag control unit 77960-TR0-Y012-M2 is the central control unit of the SRS restraint system of Honda. It processes the signals from the crash sensors and decides within milliseconds in an accident whether airbags and seatbelt pretensioners are triggered. Faults in the system are reported via the airbag warning light.

During operation the unit checks the components of the system and stores detected irregularities.

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

Why does the control unit 77960-TR0-Y012-M2 fail?

Stored crash data from an accident is the most common cause, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Whether crash data or another trigger is present can only be read from the fault memory.

Airbag24 deletes the stored crash data during the repair. Voltage spikes arise, for example, with a weak battery or a jump start.

How can you tell that the 77960-TR0-Y012-M2 is defective?

The airbag warning light lights up permanently or intermittently, and an error message appears in the instrument cluster. In addition, no connection is established between the diagnostic tool and the control unit, and the fault memory cannot be cleared.

Note that airbags and seatbelt pretensioners may then not trigger in an emergency.

• Airbag warning light lights up permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool gets no connection to the control unit
• Fault memory cannot be cleared

Which vehicles is the 77960-TR0-Y012-M2 fitted in?

The control unit 77960-TR0-Y012-M2 is fitted in these vehicles at Honda: Honda Civic 9th generation (2011-2017).

These vehicles are recorded for this part number:

• Honda Civic 9th generation (2011-2017)

Comparing the part number on the label of the removed unit with this page only ensures that it is the correct unit. Have the fault memory read out beforehand, because only the result shows whether the control unit or a plug or a 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-Y012-M2 work?

You have the fault memory read out and attach the log, then disconnect the battery and only then remove the control unit. Afterwards create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 examines the unit on the test bench, repairs defective components, deletes stored crash data and carries out a function test. Afterwards your own unit goes 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-TR0-Y012-M2 get to Airbag24?

You send the control unit 77960-TR0-Y012-M2 as a package or book a UPS collection for an extra charge. After the repair Airbag24 sends the unit back to you by UPS.

Place the printed repair order in the package and pack the control unit shock-resistant.