Airbag control unit with part number 77960-TFP-E010-M4

What does the airbag control unit 77960-TFP-E010-M4 do?

The airbag control unit 77960-TFP-E010-M4 coordinates the restraint system (SRS) in vehicles from Honda. Through the crash sensors it measures deceleration, evaluates it, and in the event of an accident triggers the appropriate airbags and seatbelt pretensioners within milliseconds. It also checks the system continuously.

If it detects a fault, it creates an entry in the fault memory and switches on the airbag warning light. In an accident the unit additionally stores crash data and then locks itself.

Why does the control unit 77960-TFP-E010-M4 fail?

The most common cause with the 77960-TFP-E010-M4 is stored crash data from an accident, even if no airbag was triggered. Further causes are component ageing, cold solder joints, moisture at plug connections and voltage spikes.

A normal diagnostic tool cannot remove this data. Airbag24 removes it as part of the repair. Ageing electronics and cold solder joints affect the function over time, while moisture and corrosion impair the contact in the plugs. Voltage spikes arise, for example, with a weak battery or when jump-starting.

How can you tell that the 77960-TFP-E010-M4 is defective?

A defect in the 77960-TFP-E010-M4 shows itself in several ways: at the airbag warning light, in an error message in the instrument cluster, in a missing connection to the diagnostic tool and in a fault memory that cannot be cleared. In an emergency, the airbags and seatbelt pretensioners may then not deploy.

The signs in detail:

• Airbag warning light in the instrument cluster lights up 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 system's own alert. Follow it up rather than ignoring it.

Which vehicles is the 77960-TFP-E010-M4 fitted in?

The 77960-TFP-E010-M4 is fitted in these vehicles: Honda Civic 10th generation (2015-2022).

This overview lists the vehicles that are recorded for the part number.

• Honda Civic 10th generation (2015-2022)

Match the number on the label of the removed unit against this page. That only ensures that you have the right unit. Have the fault memory read out before you start, because only that result 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-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-TFP-E010-M4 work?

For the 77960-TFP-E010-M4, first have the fault memory read out and attach the log. Then disconnect the battery before you remove the control unit. Afterwards you create the repair order online and send in the well-packed unit.

The order serves safety during removal and must be observed.

Airbag24 checks the unit on the test bench, replaces defective components, erases the stored crash data and carries out a functional test. Processing at Airbag24 usually takes 3–4 working days. After that, your own unit 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-TFP-E010-M4 get to Airbag24?

You send the control unit 77960-TFP-E010-M4 to Airbag24 as a parcel, or you can book a UPS collection for an extra charge. After the repair, Airbag24 hands it back to you by UPS.

The printed repair order belongs in the parcel. Pack the unit shock-resistant.