Airbag control unit with part number 77960-T5A-W411-M2

What does the airbag control unit 77960-T5A-W411-M2 do?

The airbag control unit 77960-T5A-W411-M2 forms the central control of the restraint system (SRS) in Honda. It evaluates the crash sensors and decides within milliseconds in an accident which airbags and seatbelt pretensioners are triggered.

While driving it monitors the system continuously and indicates faults found via the airbag warning light.

In an accident the unit stores crash data and locks itself.

Why does the control unit 77960-T5A-W411-M2 fail?

Crash data stored after an accident is the most common cause with this control unit, even if no airbag has deployed. Further causes are aged electronic components, cold solder joints, moisture and corrosion at connectors, as well as voltage spikes.

This crash data cannot be removed with a normal diagnostic tool.

Voltage spikes arise, for example, with a weak battery or with a jump start. Moisture and corrosion at plugs also stress the electronics.

How can you tell that the 77960-T5A-W411-M2 is defective?

Typical signs are the airbag warning light in the instrument cluster, a fault message in the instrument cluster, a diagnostic tool without connection to the control unit and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not deploy.

• The warning light may stay on permanently or only intermittently.
• The fault message appears in the instrument cluster.
• The diagnostic tool does not reach the control unit.
• The fault memory cannot be emptied despite an attempt to clear it.

The warning light in particular is the sign you notice in everyday driving.

Which vehicles is the 77960-T5A-W411-M2 fitted in?

The 77960-T5A-W411-M2 is fitted at Honda in these vehicles: Honda Jazz GK (2013-2023).

The list below shows the vehicles that are recorded for this number.

• Honda Jazz GK (2013-2023)

Compare the label on the removed unit with this page to assign it reliably. Have the fault memory read out beforehand, because only the log shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 77960-T5A-A212-M1, 77960-T5A-E010-M1, 77960-T5A-E011-M1, 77960-T5A-E020-M1, 77960-T5A-F010-M1, 77960-T5A-F011-M1.

How does the repair of the 77960-T5A-W411-M2 work?

At Airbag24, checking, repair and testing usually take 3–4 working days. First have the fault memory read out and the log prepared, then disconnect the battery and remove the control unit.

Then you create a repair order online and send in the well-packed unit. Airbag24 checks it on the test bench, replaces defective components, deletes stored crash data and runs a function test before the 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-T5A-W411-M2 get to Airbag24?

Shipment is by parcel, or you book a UPS collection for an extra charge. After the repair Airbag24 returns the control unit 77960-T5A-W411-M2 to you by UPS, so it comes back to you.

The printed repair order goes into the parcel, and the unit should be packed shock-proof.