Airbag control unit with part number 77960-T0A-C811-M1

What does the airbag control unit 77960-T0A-C811-M1 do?

At Honda, the 77960-T0A-C811-M1 forms the control centre of the restraint system (SRS). In an accident it decides within milliseconds, based on the crash sensors, which airbags and seatbelt pretensioners are triggered.

It checks the system for faults permanently. It signals any faults it detects via the airbag warning light.

If an accident has occurred, the unit stores crash data and is locked afterwards.

Why does the control unit 77960-T0A-C811-M1 fail?

Crash data from an earlier accident is the most common reason for a failure, even if no airbag has deployed. A common diagnostic scanner cannot erase it; Airbag24 removes it during the repair.

Apart from the crash data there are other causes too. Aged electronic components, cold solder joints, moisture and corrosion on plug connections, as well as voltage spikes, for example from a weak battery or a jump start, can also occur.

How can you tell that the 77960-T0A-C811-M1 is defective?

The airbag warning light in the instrument cluster stays on 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 cleared.

If such a finding occurs, airbags and seatbelt pretensioners may possibly fail to deploy in an emergency. It should therefore be clarified promptly.

Which vehicles is the 77960-T0A-C811-M1 fitted in?

This information refers to Honda. The 77960-T0A-C811-M1 is fitted in these vehicles: Honda CR-V 4 RM (2012-2018).

The vehicles follow here as an overview:

• Honda CR-V 4 RM (2012-2018)

First check whether the part number on the label of your removed unit matches this information. Also have the fault memory read in advance, to make sure that the control unit itself is defective and not a plug or a cable.

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-C811-M1 work?

Before removal, have the fault memory read and attach the log. Then disconnect the battery, remove the control unit, create the repair order online and pack it up well. Airbag24 then takes over the checking, the repair and the function test.

At Airbag24, defective components are replaced, stored crash data is deleted and a function test is carried out. The unit then goes back to you. Processing usually takes 3–4 working days, and this time refers only to checking, repairing and testing.

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-C811-M1 get to Airbag24?

The unit can be sent in as a parcel, or UPS can collect it for an extra charge. Airbag24 sends your own unit back by UPS after the repair.

Attach the printed repair order and pack the unit securely against shocks.