Airbag control unit with part number 77960-TF0-Y620-M3

What does the airbag control unit 77960-TF0-Y620-M3 do?

The airbag control unit 77960-TF0-Y620-M3 controls the restraint system (SRS) of Honda as a central unit. It records accelerations via the crash sensors and, in an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered.

During operation it checks all components of the system. It shows any faults found via the airbag warning light in the instrument cluster.

After an accident it stores crash data and then locks itself.

Why does the control unit 77960-TF0-Y620-M3 fail?

The most common cause for the 77960-TF0-Y620-M3 is crash data stored after an accident, even if no airbag was triggered. Further causes are aged electronic components, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes.

This crash data cannot be removed with a common diagnostic tool. Airbag24 erases it during the repair.

Aged electronic components and cold solder joints disrupt operation, even when no accident has occurred.

Moisture and corrosion on plug connectors worsen the contact. Voltage spikes, for example from a weak battery or jump-starting, load the electronics.

How can you tell that the 77960-TF0-Y620-M3 is defective?

A defect on the 77960-TF0-Y620-M3 shows as an airbag warning light that stays on permanently or intermittently, as a fault message in the instrument cluster, as a missing connection between the diagnostic tool and the control unit, and as a fault memory that cannot be cleared.

In that case, airbags and seatbelt pretensioners may not trigger in an emergency. The warning light is therefore a signal to take seriously.

With these signs, a check is the right next step.

Which vehicles is the 77960-TF0-Y620-M3 fitted in?

The airbag control unit 77960-TF0-Y620-M3 is installed in these vehicles: Honda Jazz GE (2008-2015).

You will find the models that match this part number in the list.

• Honda Jazz GE (2008-2015)

Check the part number on the label of the removed unit against this page; that establishes that it is the right unit. Have the fault memory read out beforehand. Only this log shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 5WK43461, 77960-SAA-G821-M1, 77960-SEG-G821-M1, 77960-TF0-G820-M3, 77960-TF0-G821.

How does the repair of the 77960-TF0-Y620-M3 work?

First have the fault memory read out and attach the log. Then disconnect the battery. Only after that remove the control unit 77960-TF0-Y620-M3, create the repair order online and send the well-packed unit in.

At Airbag24 the unit is examined on the test bench, defective components are repaired, crash data is erased and a functional test is carried out. Afterwards you receive your own unit back.

Processing at Airbag24 usually takes 3–4 working days. This period covers 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-TF0-Y620-M3 get to Airbag24?

You send the control unit 77960-TF0-Y620-M3 as a parcel, or you book a UPS collection for an extra charge. Airbag24 sends it back by UPS after the repair.

Put the printed repair order into the parcel and pack the unit shockproof.