Airbag control unit with part number 77960-3A0-H710-M1

What does the airbag control unit 77960-3A0-H710-M1 do?

Within the restraint system (SRS) of Honda, the airbag control unit 77960-3A0-H710-M1 is the central unit. It evaluates the sensor signals, decides in a crash within milliseconds on the airbags and seatbelt pretensioners, and controls the system continuously. After an accident it stores crash data and locks itself.

If it detects a fault, it makes it visible via the airbag warning light in the instrument cluster.

In everyday life little of this is noticeable, but in an emergency the control must respond reliably.

Why does the control unit 77960-3A0-H710-M1 fail?

Most often the cause is crash data remaining in memory after an accident, even if no airbag fired. Further causes are aging electronics, cold solder joints, moisture at plug connections and voltage spikes.

Crash data is the most common cause because it stays in the unit after an accident and a standard diagnostic tool cannot delete it. A simple restart therefore does not help.

The other causes concern the electronics themselves and their environment. Components age, solder joints can go cold, and moisture or corrosion attack the plug connections.

Voltage spikes occur, for example, with a weak battery or when starting with jump leads, and additionally load the control unit.

How can you tell that the 77960-3A0-H710-M1 is defective?

A defect first shows at the airbag warning light, which burns at times or constantly. Also a missing connection to the diagnostic tool and a fault memory that cannot be emptied. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

After the ignition is switched on, the light runs a self-test. If it stays active afterwards, the system must be checked.

A defect in the plug or the wire can trigger the same display. Which cause is present cannot be told without reading out.

Which vehicles is the 77960-3A0-H710-M1 fitted in?

The control unit 77960-3A0-H710-M1 is fitted in these vehicles: Honda CR-V 6 (from 2022). The brand Honda is decisive.

The vehicle list follows in the overview:

• Honda CR-V 6 (from 2022)

Comparing the part number on the removed unit with this page only confirms it is the right unit. Have the fault memory read out before removal; only this log shows whether the control unit is defective or whether a plug or wire is the cause.

How does the repair of the 77960-3A0-H710-M1 work?

At the beginning is the fault memory readout, whose log you enclose. Then disconnect the battery, remove the control unit and create the repair order online. Processing at Airbag24 usually takes 3–4 working days, and you send the unit well packed.

Airbag24 checks the unit on the test bench, replaces defective components, clears stored crash data and runs a function test. Afterwards your own unit goes back to you.

The 3–4 working days mean only 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 77960-3A0-H710-M1 get to Airbag24?

Either you send the unit as a parcel to Airbag24, or you book a UPS collection for an extra charge. After the repair, UPS brings the unit back to you.

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