Airbag control unit with part number 77960-T5C-J812-M1

What does the airbag control unit 77960-T5C-J812-M1 do?

As the control centre of the restraint system (SRS) of Honda, the unit 77960-T5C-J812-M1 evaluates the crash sensors. In an accident, it determines the triggering of airbags and seatbelt pretensioners within a fraction of a second, and it checks the system constantly. After an accident, it stores crash data and locks itself.

If it detects a fault, it reports this via the airbag warning light in the instrument cluster. In this way the unit becomes the switching point between sensors and airbags, and the message tells the driver to have the system checked.

Why does the control unit 77960-T5C-J812-M1 fail?

With the 77960-T5C-J812-M1, crash data from an accident is the most common cause, even if no airbag was triggered. Ageing components, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes are also possible.

A standard diagnostic tool cannot retrieve the stored crash data. Airbag24 deletes it during the repair.

Voltage spikes, for example after a jump-start or with a weak battery, can strain the electronics. Only the examination of the individual case clarifies whether one of these causes applies.

How can you tell that the 77960-T5C-J812-M1 is defective?

Typical signs with the 77960-T5C-J812-M1 are an airbag warning light in the instrument cluster that stays on permanently or intermittently, a fault message, and a diagnostic tool that cannot establish contact with the control unit.

• Airbag warning light in the instrument cluster, permanently or intermittently
• Fault message in the instrument cluster
• No connection between diagnostic tool and control unit
• Fault memory that cannot be reset

With such signs, airbags and seatbelt pretensioners may possibly fail to deploy in an emergency. Have the fault checked promptly.

Which vehicles is the 77960-T5C-J812-M1 fitted in?

The control unit 77960-T5C-J812-M1 is found in these vehicles: Honda Jazz GK (2013-2023).

The breakdown by model follows:

• Honda Jazz GK (2013-2023)

Comparing the part number on the unit's label with this page only confirms that the unit fits. Having the fault memory read out beforehand, however, shows whether the control unit is defective or whether a plug or cable is responsible for the fault.

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-T5C-J812-M1 work?

The first step is reading out the fault memory of the 77960-T5C-J812-M1; the log goes into the parcel. Only after the battery has been disconnected does the control unit come out. Processing at Airbag24 takes 3–4 working days as a rule.

Next comes the repair order online, followed by sending in the well-packed unit. Airbag24 checks it on the test bench, replaces components that are defective, and deletes the stored crash data before a functional test follows.

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-T5C-J812-M1 get to Airbag24?

You can send the 77960-T5C-J812-M1 as a parcel or book a UPS collection for an extra charge. Airbag24 sends the repaired unit back to you by UPS.

Enclose the printed repair order in the parcel and pack the control unit shock-proof.