Airbag control unit with part number 77960-TEA-T830-M4

What does the airbag control unit 77960-TEA-T830-M4 do?

The airbag control unit 77960-TEA-T830-M4 belongs to the restraint system (SRS) of Honda. It monitors the system and, in the event of a crash, evaluates which airbags and seatbelt pretensioners are triggered.

The crash sensors supply the unit with the signals on which it decides within milliseconds. At the same time it checks the system continuously for faults.

If it detects a fault, it reports it via the airbag warning light. After an accident it stores crash data and then locks itself.

Why does the control unit 77960-TEA-T830-M4 fail?

The most common cause on the 77960-TEA-T830-M4 is stored crash data after an accident, even if no airbag has triggered. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

Crash data cannot be erased with an ordinary diagnostic tool. It stays in memory until Airbag24 removes it during the repair.

For the other causes, it is worth looking at the fault memory before you remove anything. Aged components and cold solder joints can only be narrowed down through a test.

Moisture at plugs and voltage spikes, for example from a weak battery or a jump-start, also count among the possible triggers. Which cause applies in an individual case only the test will show.

How can you tell that the 77960-TEA-T830-M4 is defective?

A defect on the 77960-TEA-T830-M4 shows up as an airbag warning light that lights up permanently or from time to time, and as a fault message in the instrument cluster. Also noticeable are a diagnostic tool that cannot establish a connection to the control unit, or a fault memory that cannot be cleared.

The warning light catches the eye when you get in or while driving in the instrument cluster. It is the signal the system gives itself.

As long as the defect exists, airbags and seatbelt pretensioners may not trigger in an emergency. So take the warning light seriously and have the fault checked.

Which vehicles is the 77960-TEA-T830-M4 fitted in?

The assignment applies to vehicles from Honda. The control unit 77960-TEA-T830-M4 is fitted in these vehicles: Honda Civic 10th generation (2015-2022).

Here are the vehicles at a glance:

• Honda Civic 10th generation (2015-2022)

Compare the part number on the label of the unit with this page. This only confirms the right unit. Also have the fault memory read out, because this log shows whether the control unit itself or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 77960-SMG-G014-M1, 77960-TBA-A01, 77960-TBA-A02, 77960-TBA-A03, 77960-TBA-A04, 77960-TBA-A05.

How does the repair of the 77960-TEA-T830-M4 work?

Airbag24 needs 3–4 working days for the 77960-TEA-T830-M4, meaning only checking, repairing and testing at Airbag24. Your steps run separately from this: read out the fault memory, enclose the log, disconnect the battery, remove the control unit and create a repair order online.

Pack the unit well and send it in. Airbag24 checks it on the test bench, replaces defective components, deletes the crash data and carries out a function test.

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-TEA-T830-M4 get to Airbag24?

The 77960-TEA-T830-M4 reaches Airbag24 either as a parcel that you send yourself or with a UPS collection that you book for an extra charge. After the repair Airbag24 brings the unit back to you by UPS.

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