Airbag control unit with part number 77960-T6A-H111-M2

What does the airbag control unit 77960-T6A-H111-M2 do?

The airbag control unit 77960-T6A-H111-M2 is the central control unit of the SRS for Honda. It processes the signals of several crash sensors, decides in a crash whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously. After an accident it stores crash data and locks itself.

It displays faults via the airbag warning light in the instrument cluster. This message is the first indication that something is wrong in the system.

Why does the control unit 77960-T6A-H111-M2 fail?

Stored crash data from an accident is the most common cause, and this applies even if no airbag has deployed. Ageing, cold solder joints, moisture at connectors and voltage spikes also count.

The crash data remain in the unit, and a normal diagnostic tool cannot erase them. That is precisely why the fault stays stored in the control unit.

Ageing and cold solder joints are hardly detectable from outside, but they are known causes. Moisture at connectors and voltage spikes, for example from a weak battery, are also possible.

How can you tell that the 77960-T6A-H111-M2 is defective?

Typically the airbag warning light in the instrument cluster lights up permanently or intermittently. Fault messages, a missing connection to the diagnostic tool or a fault memory that persists are added to this.

As long as these signs are present, airbags and seatbelt pretensioners may not deploy in an emergency. So have the system checked rather than ignoring the warning light.

Which vehicles is the 77960-T6A-H111-M2 fitted in?

In this model the control unit 77960-T6A-H111-M2 is used: Honda Odyssey 5th generation (from 2013).

The assignment of this model to the part number looks like this:

• Honda Odyssey 5th generation (from 2013)

The label on the removed unit only tells you whether you have the right unit in front of you, while the fault memory clarifies the cause. Whether the control unit is really defective or a connector or cable is the cause is shown only by the fault memory.

For the same vehicles, we also repair control units with the part numbers 77960-THR-A02, 77960-THR-A03, 77960-TK8-A011-M1, 77960-TK8-D01.

How does the repair of the 77960-T6A-H111-M2 work?

Before anything is removed, have the fault memory read out and the log enclosed. Then disconnect the battery before removing the control unit 77960-T6A-H111-M2. Processing at Airbag24 usually takes 3–4 working days.

Then you create a repair order online and send the unit off well packed. Airbag24 carries out a bench test, replaces defective components, erases stored crash data and concludes with a functional test. After that 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-T6A-H111-M2 get to Airbag24?

The control unit 77960-T6A-H111-M2 reaches Airbag24 either as a parcel or with a UPS collection booked for an extra charge. UPS handles the return.

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