Airbag control unit with part number 77960-TS2-P611-M1

What does the airbag control unit 77960-TS2-P611-M1 do?

The airbag control unit 77960-TS2-P611-M1 is the SRS control unit for Honda. It evaluates the signals from the crash sensors, decides in a collision within milliseconds on the triggering of airbags and seatbelt pretensioners, and monitors the system permanently. After a crash it stores crash data and locks itself.

Monitoring continues even without an accident. Sensors, wiring and the unit's own circuits are checked continuously.

If the unit detects a fault, it reports it via the airbag warning light. The driver sees the warning in the instrument cluster and can have the system checked.

Why does the control unit 77960-TS2-P611-M1 fail?

The most frequent cause is crash data stored after a crash, even if no airbag deployed; a normal diagnostic tool cannot delete it. Airbag24 deletes it during the repair. Aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes also come into consideration.

Crash data stays stored after a crash, even if no airbag was triggered. That is why it is the cause that occurs most often.

The other causes lie in the electronics. Components age, solder joints can go cold, and moisture or corrosion affects the plug connections.

Voltage spikes, for example from a weak battery or a jump start, also put a strain on the unit.

How can you tell that the 77960-TS2-P611-M1 is defective?

A defect shows up on the airbag warning light in the instrument cluster, which lights up permanently or intermittently. An error message and a missing connection of the diagnostic tool also appear. In an emergency, the airbags and seatbelt pretensioners may then fail to deploy.

The warning light is the first indication you will notice. Whether it stays on permanently or only lights up temporarily, it should be checked promptly in either case.

A fault memory that cannot be cleared adds to this suspicion. Together with the warning light, this is a clear sign that the system is not in order.

Which vehicles is the 77960-TS2-P611-M1 fitted in?

Whether your vehicle fits can be quickly clarified with the model list. The 77960-TS2-P611-M1 is fitted at Honda in these vehicles: Honda Civic 9th generation (2011-2017).

Here are the vehicles in which this control unit has been recorded:

• Honda Civic 9th generation (2011-2017)

Compare the part number on the label of the removed unit with this page so you know it is the correct unit. This comparison says nothing about a defect. Therefore have the fault memory read out beforehand, because only that result shows whether the control unit or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 77960-TS4-U411-M1, 77960-TS4-U811-M2, 77960-TS4-Z611-M1, 77960-TS6-H711-M1, 77960-TT0-T011-M1, 77960-TT0-Y610-M2.

How does the repair of the 77960-TS2-P611-M1 work?

First have the fault memory read out and the log attached, then disconnect the battery and remove the control unit. Then create a repair order online and send the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, repairs defective components, deletes the stored crash data and carries out a function test. This time applies only to checking, repairing and testing at Airbag24.

Afterwards your own 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-TS2-P611-M1 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

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