Airbag control unit with part number 77960-3V0-P430-M1

What does the airbag control unit 77960-3V0-P430-M1 do?

The airbag control unit 77960-3V0-P430-M1 is the central control unit of the restraint system (SRS) for Honda. It decides which airbags and seatbelt pretensioners are triggered in an emergency.

The unit evaluates the signals from the crash sensors. In an accident it decides within milliseconds which airbags and which seatbelt pretensioners are triggered. During operation it monitors the entire system continuously and reports faults via the airbag warning light in the instrument cluster.

After an accident it stores crash data and then locks itself. Without this unit the restraint system could not react in a targeted way in an emergency, which is why the electronics are constantly in operation. The electronics are thus firmly integrated into the system.

Why does the control unit 77960-3V0-P430-M1 fail?

For 77960-3V0-P430-M1 the most common cause is stored crash data after an accident, even if no airbag has deployed. Further causes are aged components, cold solder joints, moisture and corrosion at plug connections, as well as voltage spikes.

Crash data arises even when no airbag has deployed; the unit logs the incident regardless. A normal diagnostic tool cannot delete these entries, so the fault memory stays occupied.

A failure does not necessarily have to result from an accident. Electronics age, plug connections can corrode from moisture, and a weak battery or jump-starting can produce voltage spikes that stress the unit.

How can you tell that the 77960-3V0-P430-M1 is defective?

A defect on the 77960-3V0-P430-M1 shows itself through the airbag warning light, through fault messages in the instrument cluster, through a missing connection to the diagnostic tool, or through a fault memory that cannot be cleared.

• The airbag warning light in the instrument cluster lights up permanently or intermittently.
• A fault message on the airbag system appears in the instrument cluster.
• The diagnostic tool cannot establish a connection to the control unit.
• The fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then not trigger. Do not ignore such signs, but have the cause clarified promptly.

Which vehicles is the 77960-3V0-P430-M1 fitted in?

The control unit 77960-3V0-P430-M1 is fitted in these vehicles: Honda HR-V 2nd generation (2015-2022).

The list names the vehicles that Airbag24 has assigned to this part number. You will find them directly below.

• Honda HR-V 2nd generation (2015-2022)

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

For the same vehicles, we also repair control units with the part numbers 77960-3V0-A81, 77960-T7S-A21, 77960-T7S-A212-M2, 77960T7SK410M2.

How does the repair of the 77960-3V0-P430-M1 work?

First read out the fault memory and enclose the log; then disconnect the battery and only then remove the control unit 77960-3V0-P430-M1. Afterwards create a repair order online and send the unit in well packed.

At Airbag24 the unit first goes to the test bench. There defective components are replaced, the crash data is deleted and a function test is carried out. For testing, repair and checking Airbag24 usually needs 3–4 working days; afterwards your own unit goes back to you.

The order of steps protects you during removal and is therefore binding. 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 77960-3V0-P430-M1 get to Airbag24?

You send the control unit 77960-3V0-P430-M1 as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 returns it by UPS.

The printed repair order goes into the parcel, and the unit should be packed shock-proof. A sturdy packaging protects it from knocks in transit.