Airbag control unit with part number 77960-S1A-G94-M1

What does the airbag control unit 77960-S1A-G94-M1 do?

The 77960-S1A-G94-M1 processes the sensor signals in the restraint system (SRS) of Honda. In a crash it decides within milliseconds which airbags and seatbelt pretensioners fire, and it monitors the entire system continuously.

The unit detects faults in the system itself and displays them via the airbag warning light. The light makes the state of the system visible.

After an accident the control unit stores crash data and locks itself.

Why does the control unit 77960-S1A-G94-M1 fail?

The most common cause on the 77960-S1A-G94-M1 is stored crash data that remains after an accident without an airbag being triggered. Also considered are ageing components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes from the vehicle electrical system.

A normal diagnostic tool cannot erase this crash data. Airbag24 removes it as part of the repair.

The other causes relate to age, connections and the power supply. Electronic components age, solder joints can go cold, and moisture attacks plug connections. A weak battery or jump-starting can produce voltage spikes that also lead to faults.

How can you tell that the 77960-S1A-G94-M1 is defective?

A defect on the 77960-S1A-G94-M1 shows itself through the airbag warning light, which lights up permanently or intermittently, through an error message, through the diagnostic tool having no contact with the control unit, or through a fault memory that cannot be erased. In an emergency airbags and seatbelt pretensioners may then possibly not deploy.

The warning light is a clear signal that can be recognised without tools. Take it seriously and have the system checked promptly.

A diagnostic tool that makes no contact with the control unit also indicates a problem. Only the read-out shows whether the cause lies in the unit itself.

Which vehicles is the 77960-S1A-G94-M1 fitted in?

The 77960-S1A-G94-M1 is fitted in these vehicles: Honda Accord 6th generation (1998-2002). This assignment concerns the control unit, not the condition of the individual car.

The overview helps with comparison against your own vehicle.

• Honda Accord 6th generation (1998-2002)

First compare the part number on the label of the removed unit with this page, because that is how you make sure it is the right unit. Also have the fault memory read out before removal, because only the result shows whether the control unit is defective or whether a plug or cable is the problem.

For the same vehicles, we also repair control units with the part numbers 77960-SEA-G815-M1, C0W6K4VDA.

How does the repair of the 77960-S1A-G94-M1 work?

At the start is the read-out of the fault memory; the log goes with the unit. Then disconnect the battery and only then remove the control unit. Processing at Airbag24 usually takes 3–4 working days.

Create the repair order online and send in the well-packed unit. On the test bench Airbag24 examines it, repairs defective components, deletes the crash data and carries out a functional test.

After that the unit goes back to you. 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-S1A-G94-M1 get to Airbag24?

You can send the 77960-S1A-G94-M1 in as a parcel or book a UPS collection for an extra charge. The return after the repair is made by UPS.

Enclose the printed repair order and pack the unit shock-resistant.