Airbag control unit with part number 77960-TF0-H432-M3

What does the airbag control unit 77960-TF0-H432-M3 do?

The airbag control unit 77960-TF0-H432-M3 is the central control unit of the restraint system (SRS) for Honda. It evaluates the signals from the crash sensors, determines in an accident within milliseconds whether airbags and seatbelt pretensioners trigger, and monitors the system permanently.

The unit indicates faults in the restraint system via the airbag warning light in the instrument cluster. Anyone familiar with this light knows immediately that a check may be needed.

After an accident, the control unit stores crash data and locks itself. This is part of its function.

Why does the control unit 77960-TF0-H432-M3 fail?

Most often, the cause is crash data stored after an accident, even if no airbag has deployed. A normal diagnostic tool cannot clear it. The causes of a failure, however, extend beyond this.

Ageing electronic components, cold solder joints, moisture and corrosion at the plug connections, and voltage spikes are typical problems. Voltage spikes can arise, for example, from a weak battery or jump-starting.

Which cause applies to a particular unit is shown by the examination. Airbag24 deletes the crash data during the repair.

How can you tell that the 77960-TF0-H432-M3 is defective?

Typical signs are an airbag warning light that stays on permanently or intermittently, and a fault message in the display. In addition, the diagnostic tool may not establish a connection, or the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then fail to deploy. So do not wait to see whether the warning clears itself, but have such signs checked promptly.

Which vehicles is the 77960-TF0-H432-M3 fitted in?

The 77960-TF0-H432-M3 is fitted in these vehicles: Honda Jazz GE (2008-2015).

This part number is recorded for the following models:

• Honda Jazz GE (2008-2015)

Have the fault memory read out before removing the control unit. This shows whether the control unit itself is defective or whether a plug or cable causes the fault. Afterwards you can compare the part number on the label of the unit with this page.

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-H432-M3 work?

First, read out the fault memory and enclose the log with the unit. Then disconnect the battery, remove the control unit, create the repair order online and pack the unit carefully. Then send it in.

Airbag24 checks the unit on the test bench. Defective components are replaced, stored crash data is deleted, and a function test follows. The unit then goes back to you.

Processing at Airbag24 usually takes 3–4 working days. This time 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-H432-M3 get to Airbag24?

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

The printed repair order belongs in the parcel, and the unit should be packed shock-resistant.