Airbag control unit with part number 77960-T7S-F410-M2

What does the airbag control unit 77960-T7S-F410-M2 do?

The airbag control unit 77960-T7S-F410-M2 controls the restraint system (SRS) in vehicles of the Honda brand. It evaluates the signals from the crash sensors, decides in an emergency within fractions of a second which airbags and seatbelt pretensioners are triggered, and monitors the system without interruption.

The unit stores detected faults in the fault memory and indicates them via the airbag warning light in the instrument cluster. After an accident it stores crash data and locks itself. Only the repair lifts this lock.

Why does the control unit 77960-T7S-F410-M2 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. In addition there are aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes, for example with a weak battery or a jump start.

Crash data cannot be erased with a normal diagnostic tool. Airbag24 erases it during the repair.

The other causes develop gradually: electronic components age, solder joints can go cold, and moisture attacks plug connections.

How can you tell that the 77960-T7S-F410-M2 is defective?

A defect in the 77960-T7S-F410-M2 shows itself through the airbag warning light, fault messages in the instrument cluster, a diagnostic tool without connection to the control unit, and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then possibly not deploy.

• The airbag warning light in the instrument cluster lights up permanently or intermittently.
• A fault message appears in the instrument cluster.
• The diagnostic tool gets no connection to the control unit.
• The fault memory cannot be cleared.

The light shows the defect as soon as it occurs. Take this indication seriously and have the system checked.

Which vehicles is the 77960-T7S-F410-M2 fitted in?

The control unit 77960-T7S-F410-M2 is fitted in these vehicles: Honda HR-V 2nd generation (2015-2022).

The following vehicles are known to us for this part number:

• Honda HR-V 2nd generation (2015-2022)

Compare the part number on the label of the removed unit with this page. That only shows that it is the correct unit.

Also have the fault memory read out. Only the log shows 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 77960-3V0-A81, 77960-T7S-A21, 77960-T7S-A212-M2, 77960T7SK410M2.

How does the repair of the 77960-T7S-F410-M2 work?

First you read out the fault memory and enclose the log. Then you disconnect the battery and only then remove the control unit. Next you create a repair order online and send the unit in, well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench and replaces defective components. Stored crash data is erased, and a function test follows. Then 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-T7S-F410-M2 get to Airbag24?

You send the control unit 77960-T7S-F410-M2 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-resistant.