Airbag control unit with part number 77960-T2A-N010-M1

What does the airbag control unit 77960-T2A-N010-M1 do?

The airbag control unit 77960-T2A-N010-M1 is the central control unit of the restraint system (SRS) for Honda. It evaluates the signals from the crash sensors and, in the event of an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered.

The unit also monitors the entire system continuously. If it detects a fault, it reports this via the airbag warning light in the instrument cluster. This way you learn in good time that something is wrong in the restraint system and can act.

After an accident, the control unit stores crash data and locks itself. This lock affects the control unit itself and the handling of its stored data.

Why does the control unit 77960-T2A-N010-M1 fail?

Most common cause: crash data stored after an accident, even if no airbag has deployed. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes, for example from a weak battery or a jump start.

Stored crash data cannot be erased with a standard diagnostic tool. It remains in the control unit even when nothing can be seen on the vehicle from outside.

The other causes lie in the electronics themselves or in their surroundings. Components age, solder joints can go cold, and moisture attacks plug connectors. Such damage need not show up straight away.

How can you tell that the 77960-T2A-N010-M1 is defective?

The airbag warning light in the instrument cluster lights up on the 77960-T2A-N010-M1 permanently or intermittently, and the instrument cluster shows a fault message. In addition, the diagnostic tool cannot establish a connection to the control unit, and the fault memory cannot be erased.

In an emergency, airbags and seatbelt pretensioners may then fail to deploy. Do not ignore the warning light.

Which vehicles is the 77960-T2A-N010-M1 fitted in?

Compare your car with the list before you create a repair order. The control unit 77960-T2A-N010-M1 is fitted in these vehicles: Honda CR-V 4 RM (2012-2018).

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

• Honda CR-V 4 RM (2012-2018)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the correct unit. Also have the fault memory read out beforehand, because only the result 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-T0A-3070-M4, 77960-T0A-A012-M1, 77960-T0A-A013-M1, 77960-T0A-A210-M1, 77960-T0A-A212-M1, 77960-T0A-A230-M1.

How does the repair of the 77960-T2A-N010-M1 work?

First have the fault memory read out, then disconnect the battery and only then remove the 77960-T2A-N010-M1. Next, create a repair order online, enclose the log and send in the well-packed unit. Airbag24 tests it on the test bench, replaces defective components, erases stored crash data and carries out a function test; afterwards your own unit is sent back.

Processing at Airbag24 usually takes 3–4 working days. This period covers only testing, repair and function test on our side, not your steps and not the dispatch.

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-T2A-N010-M1 get to Airbag24?

You send the control unit 77960-T2A-N010-M1 to Airbag24 as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends your own unit back to you by UPS.

Put the printed repair order into the parcel and pack the unit so that it is shockproof.