Airbag control unit with part number 77960-T7S-E111-M2

What does the airbag control unit 77960-T7S-E111-M2 do?

The airbag control unit 77960-T7S-E111-M2 forms the control centre of the restraint system (SRS) in Honda vehicles. It evaluates crash sensors, decides on airbags and seatbelt pretensioners within milliseconds in a collision, and monitors the system continuously. After an accident it stores crash data and locks itself.

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

Why does the control unit 77960-T7S-E111-M2 fail?

The most common cause on the 77960-T7S-E111-M2 is crash data stored after an accident, even if no airbag has deployed. A normal diagnostic tool cannot erase it. Further causes are aged components, cold solder joints, moisture and corrosion at plugs, and voltage spikes.

Stored crash data remains in the unit until Airbag24 removes it during the repair. This entry is therefore not component damage, but information in the memory.

The other causes relate to ageing and the electrics. Solder joints can go cold, and moisture attacks plug connections.

How can you tell that the 77960-T7S-E111-M2 is defective?

A defect in the 77960-T7S-E111-M2 shows up as an error message in the instrument cluster, as the airbag warning light, as a lack of connection to the diagnostic tool, and as a fault memory that cannot be cleared.

The airbag warning light stays on permanently or intermittently as soon as the unit detects a fault. In an emergency, airbags and seatbelt pretensioners may then fail to deploy. Please have this indicator checked promptly.

Which vehicles is the 77960-T7S-E111-M2 fitted in?

The control unit 77960-T7S-E111-M2 is fitted in this assignment: Honda HR-V 2nd generation (2015-2022).

The assignment follows here as a list:

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

Compare the part number on the label of the removed unit with this page; this only confirms that you have the right unit. Also have the fault memory read out beforehand. Only this log shows whether the control unit is defective or 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-E111-M2 work?

First have the fault memory read out and attach the log, then disconnect the battery. Only then remove the control unit. Next, create a repair order online and send the unit in well packed. At Airbag24, processing usually takes 3–4 working days.

First the unit is checked on the test bench, followed by the component replacement, the erasing of the crash data and the function test. Afterwards the 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-T7S-E111-M2 get to Airbag24?

The control unit 77960-T7S-E111-M2 reaches Airbag24 either by parcel or with a UPS collection booked for an extra charge. The return after the repair is made by UPS.

Pack the unit shock-proof and include the printed repair order.