Airbag control unit with part number 77960-TR3-K011-M1

What does the airbag control unit 77960-TR3-K011-M1 do?

The airbag control unit 77960-TR3-K011-M1 coordinates the restraint system (SRS) on Honda. It evaluates the crash sensors and decides within a fraction of a second which airbags and seatbelt pretensioners to trigger. It also monitors all components and indicates faults via the airbag warning light.

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

Why does the control unit 77960-TR3-K011-M1 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion as well as voltage spikes.

The other causes in detail:

• Aged electronic components
• Cold solder joints
• Moisture and corrosion at plug connectors
• Voltage spikes, for example from a weak battery or a jump-start

How can you tell that the 77960-TR3-K011-M1 is defective?

The airbag warning light lights continuously or intermittently to indicate the defect, and a fault message appears in the instrument cluster. The diagnostic tool cannot establish a connection to the control unit, and the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then fail to deploy in an emergency.

The warning light is the first sign to look into. It shows the fault itself, without further checks being needed.

Which vehicles is the 77960-TR3-K011-M1 fitted in?

Whether your vehicle matches the control unit is decided by comparing the details. The 77960-TR3-K011-M1 control unit of Honda is fitted in these vehicles: Honda Civic 9th generation (2011-2017).

The vehicles in detail:

• Honda Civic 9th generation (2011-2017)

On the one hand, compare the part number on the label of the removed unit with this page so that you have the correct unit. On the other hand, have the fault memory read out beforehand. The result shows whether the control unit 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-TR3-K011-M1 work?

Airbag24 needs 3–4 working days for checking, repair and function test. Before removal, have the fault memory read out and attach the log; then disconnect the battery. Afterwards create a repair order online and send in the unit.

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. Your own unit then comes back to you.

The stated processing time applies only to these tasks at Airbag24. 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-TR3-K011-M1 get to Airbag24?

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

Put the printed repair order in the parcel and pack the unit shock-resistantly.