Airbag control unit with part number 77960-T0A-M911-M1

What does the airbag control unit 77960-T0A-M911-M1 do?

The airbag control unit 77960-T0A-M911-M1 belongs to the restraint system (SRS) at Honda and controls its triggering. It evaluates the signals from the crash sensors and decides in an accident which airbags and seatbelt pretensioners are triggered.

The unit monitors the system constantly. If it detects a fault, it shows this via the airbag warning light in the instrument cluster.

After an accident it stores crash data and locks itself.

Why does the control unit 77960-T0A-M911-M1 fail?

The most common cause with the 77960-T0A-M911-M1 is that crash data remain in the unit after an accident, even if no airbag has deployed. This data cannot be erased with a normal diagnostic tool. Other causes include ageing components, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes.

Crash data remain stored until Airbag24 removes them during the repair.

Ageing electronic components and cold solder joints impair the function of the circuit.

Voltage spikes, for example from a weak battery or a jump start, are also among the causes that can stress the unit.

How can you tell that the 77960-T0A-M911-M1 is defective?

A defect in the 77960-T0A-M911-M1 is shown by the airbag warning light, which lights up permanently or intermittently. Fault messages in the instrument cluster and a fault memory that cannot be cleared may also appear, and the diagnostic tool may find no connection to the unit. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

A lit warning light is a clear sign that you should not ignore.

Have the finding checked promptly.

Which vehicles is the 77960-T0A-M911-M1 fitted in?

The control unit 77960-T0A-M911-M1 is fitted at Honda in these vehicles: Honda CR-V 4 RM (2012-2018).

You will find the vehicles for this unit in the following list.

• Honda CR-V 4 RM (2012-2018)

Compare the part number on the label of the removed unit with this page. This only ensures that you have the right unit. Have the fault memory read out beforehand, because only this result shows whether the control unit itself is defective or a cable or plug is the cause.

For the same vehicles, we also repair control units with the part numbers 5WK43782, 77960-SWA-G212-M4, 77960-SWA-G214-M4, 77960-T1G-G920-M4.

How does the repair of the 77960-T0A-M911-M1 work?

First you read out the fault memory and attach the log. Then you disconnect the battery, only then remove the control unit 77960-T0A-M911-M1 and create a repair order online. Airbag24 checks, repairs and tests the unit, after which your own unit is returned.

Pack the unit well and send it in only after the repair order has been created.

Processing takes 3–4 working days as a rule, namely for testing, repairing and checking. Crash data are erased in the process. 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-T0A-M911-M1 get to Airbag24?

The control unit 77960-T0A-M911-M1 is sent in as a parcel, or you book a UPS collection for an extra charge. After the repair Airbag24 returns it by UPS.

Place the printed repair order in the parcel and pack the unit shock-proof.