Airbag control unit with part number 77960-TG7-A020-M2

What does the airbag control unit 77960-TG7-A020-M2 do?

The 77960-TG7-A020-M2 is the central control unit of the SRS system for Honda. It checks the crash sensors, decides within milliseconds in a crash whether to trigger the airbags and seatbelt pretensioners, and monitors the system continuously. After an accident it stores crash data and locks itself.

The unit reports faults via the airbag warning light in the instrument cluster.

Why does the control unit 77960-TG7-A020-M2 fail?

Stored crash data after an accident is the most common cause on the 77960-TG7-A020-M2, even if no airbag was triggered. A normal diagnostic tool cannot delete it. Other causes include aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

The crash data remains in the unit's memory until it is removed during the repair. The fact that no airbag was triggered changes nothing about this.

The remaining causes lie in the unit or the wiring. Electronic components age, solder joints can go cold, and moisture combined with corrosion affects the contacts.

How can you tell that the 77960-TG7-A020-M2 is defective?

The airbag warning light in the instrument cluster lights up continuously or intermittently, a fault message appears in the instrument cluster, and the diagnostic tool gets no connection to the control unit. If the fault memory cannot be cleared, that confirms the suspicion. In that case, airbags and seatbelt pretensioners may not trigger in an emergency.

The light is a signal that should not be ignored, because it makes a defect visible. Anyone who keeps driving with it relies on a restraint system whose function is uncertain.

Which vehicles is the 77960-TG7-A020-M2 fitted in?

Whether this unit belongs in your vehicle is shown by the details on this page. The 77960-TG7-A020-M2 is fitted in these vehicles: Honda Pilot 3rd generation (2015-2018) and 3rd generation Facelift (2018-2022).

The list contains the vehicles known to us for this unit:

• Honda Pilot 3rd generation (2015-2018)
• Honda Pilot 3rd generation Facelift (2018-2022)

Comparing the part number on the label of the removed unit with this page only confirms that it is the correct unit. Clarify the cause together with the fault memory first: have it read out to see 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-TG7-A110M2, 77960-TG7-R020-M2, 77960-TG7-R110-M2, 77960-TG7-R210-M2, 77960-TG7-X110-M2, 77960-TG7-X210-M2.

How does the repair of the 77960-TG7-A020-M2 work?

Have the fault memory read out and attach the log, disconnect the battery and only then remove the 77960-TG7-A020-M2. Afterwards create a repair order online and pack the unit well. Airbag24 usually needs 3–4 working days for checking, repairing and testing.

Airbag24 checks the unit on the test bench, replaces defective components and deletes stored crash data. A function test follows, then your own unit is returned.

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-TG7-A020-M2 get to Airbag24?

You send the 77960-TG7-A020-M2 as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 returns it by UPS.

The printed repair order goes into the parcel, and you pack the unit shock-proof.