Airbag control unit with part number 77960-TG7-Y020-M2

What does the airbag control unit 77960-TG7-Y020-M2 do?

The airbag control unit 77960-TG7-Y020-M2 is the switching centre of the restraint system (SRS) for Honda. It processes the messages from the crash sensors and decides in an accident, within fractions of a second, which airbags and seatbelt pretensioners are triggered.

During operation, the control unit monitors the entire system. If it finds a fault, it displays it via the airbag warning light in the instrument cluster, so the state of the system remains traceable at all times.

After an accident, the unit stores crash data and then locks itself. The following sections of this page explain how to proceed with such a unit.

Why does the control unit 77960-TG7-Y020-M2 fail?

The most common cause with the 77960-TG7-Y020-M2 is crash data stored after an accident, even if no airbag has deployed. Further causes are aged electronics, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes, for example from a weak battery or jump-starting.

Crash data cannot be erased with an ordinary diagnostic tool, so it remains in the unit. Airbag24 removes it as part of the repair.

The other causes relate to age and environment. Electronics change over the years, solder joints can lose contact, and moisture and corrosion attack the contacts. Voltage spikes additionally load the vehicle electrical system.

How can you tell that the 77960-TG7-Y020-M2 is defective?

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

If the warning light comes on only intermittently, it goes out again afterwards, but still shows the fault. The control unit thus reports even when the system appears inconspicuous in everyday driving.

If the defect persists, airbags and seatbelt pretensioners may not be able to deploy in an emergency. Therefore have the system checked promptly rather than ignoring the display.

Which vehicles is the 77960-TG7-Y020-M2 fitted in?

The vehicle registration document is the easiest way to check whether your own car belongs to this group. The 77960-TG7-Y020-M2 is fitted in these vehicles: Honda Pilot 3rd generation (2015-2018) and 3rd generation Facelift (2018-2022).

The vehicles for which this part number is stored are listed here:

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

Compare the part number on the label of the removed unit with this page. That only confirms that it is the right unit. Also have the fault memory read out, because only the result shows whether the control unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 77960-S9V-A013-C1, 77960-T90-A010-M1, 77960-T90-A011-M1.

How does the repair of the 77960-TG7-Y020-M2 work?

First have the fault memory read out and enclose the log, then disconnect the battery and only then remove the 77960-TG7-Y020-M2. Next, create the repair order online, pack the unit well and send it in.

At Airbag24, the team checks the control unit on the test bench and repairs or replaces defective components. Afterwards, the crash data is erased and a functional test is carried out.

Processing at Airbag24 usually takes 3–4 working days, and this time refers only to checking, repairing and testing. Your own unit then 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-TG7-Y020-M2 get to Airbag24?

You send the control unit 77960-TG7-Y020-M2 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Place the printed repair order in the parcel and pack the unit shock-resistant so that it arrives undamaged.