Airbag control unit with part number 77960-TF0-Y432-M3

What does the airbag control unit 77960-TF0-Y432-M3 do?

The control unit 77960-TF0-Y432-M3 is the airbag control unit of the SRS for Honda. It evaluates the crash sensors, decides in an accident whether airbags and seatbelt pretensioners are triggered, and runs in the background as the system's guardian.

It detects faults itself and shows them via the airbag warning light in the instrument cluster. This warning light is the most important indication of the system's condition.

If an accident has occurred, it stores crash data and then locks itself. The repair deals with this fact, as the following sections show.

Why does the control unit 77960-TF0-Y432-M3 fail?

The most common cause is crash data from an accident, even if no airbag has triggered. Aged components, cold solder joints, moisture and corrosion at plugs, and voltage spikes can additionally affect the control unit.

Crash data remains in the unit, because it cannot be erased with a normal diagnostic tool. Airbag24 removes it during the repair.

Age and the environment affect the other causes. Electronic components lose reliability over time, solder joints can make poor contact and moisture harms the connections. Voltage spikes, for example from a weak battery, round off the picture.

How can you tell that the 77960-TF0-Y432-M3 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. In addition a fault message appears, the diagnostic tool cannot find the control unit and the fault memory cannot be cleared.

In this case airbags and seatbelt pretensioners may not trigger in an emergency. The warning light makes the defect visible on its own.

Anyone who notices these signs should have the system checked promptly.

Which vehicles is the 77960-TF0-Y432-M3 fitted in?

Keep the vehicle registration document next to this page, and you can see whether your own car is included. The 77960-TF0-Y432-M3 is fitted in these vehicles: Honda Jazz GE (2008-2015).

You will find the vehicles stored for this unit here:

• Honda Jazz GE (2008-2015)

Compare the part number on the label of the removed unit with this page. This only ensures that it is the right unit. Also have the fault memory read out, because only the result 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-Y432-M3 work?

First have the fault memory read out and attach the log. Then disconnect the battery, remove the control unit and create a repair order online.

Then pack the unit well and send it in. At Airbag24 it is checked on the test bench, defective components are repaired and a function test is carried out.

Processing at Airbag24 usually takes 3–4 working days before your own unit is sent back. 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-Y432-M3 get to Airbag24?

You send the control unit 77960-TF0-Y432-M3 as a parcel or optionally book a UPS collection. After the repair Airbag24 sends it back by UPS.

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