Airbag control unit with part number 77960-T5B-J810-M1

What does the airbag control unit 77960-T5B-J810-M1 do?

The 77960-T5B-J810-M1 controls the restraint system (SRS) in Honda vehicles. It monitors the crash sensors, decides on airbags and seatbelt pretensioners within fractions of a second in the event of an accident, and reports faults via the airbag warning light.

During operation, it continuously checks the entire restraint system.

After a crash, the unit stores crash data, whereupon it locks itself.

Why does the control unit 77960-T5B-J810-M1 fail?

The most common cause on the 77960-T5B-J810-M1 is crash data from an earlier accident, even without a triggered airbag. In addition, aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump start, can contribute.

Crash data remains stored in the unit, and it cannot be deleted with a standard diagnostic tool. Airbag24 deletes it as part of the repair.

The other causes lie in the electronics themselves or in the connections. Which of these applies in an individual case is only determined by the examination.

How can you tell that the 77960-T5B-J810-M1 is defective?

A fault in the 77960-T5B-J810-M1 can be recognised by the airbag warning light, which stays on permanently or intermittently. Error messages, a missing connection to the diagnostic tool, or a fault memory that cannot be cleared are also signs of this.

These signs are especially important:

• The warning light stays on permanently or flickers.
• An error message appears in the instrument cluster.
• The diagnostic tool cannot reach the control unit.
• The fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then not trigger. The warning light should therefore not be ignored.

Which vehicles is the 77960-T5B-J810-M1 fitted in?

This unit, 77960-T5B-J810-M1, is fitted in these vehicles: Honda Jazz GK (2013-2023).

The following list shows the vehicles in which this unit has been installed.

• Honda Jazz GK (2013-2023)

You can compare the part number with this page to confirm the right unit. However, it does not clarify the cause. Have the fault memory read out before removal, as it shows whether the control unit itself is affected 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-T5B-J810-M1 work?

First have the fault memory read out, and enclose the log. Then disconnect the battery and remove the control unit 77960-T5B-J810-M1. Processing at Airbag24 usually takes 3–4 working days.

Afterwards you create a repair order online and pack the unit well before sending it in. Airbag24 examines it on the test bench, repairs defective components, deletes stored crash data and carries out a function test.

Only then does the return of your own unit follow. 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-T5B-J810-M1 get to Airbag24?

You send the 77960-T5B-J810-M1 as a parcel to Airbag24, or book a UPS collection for an extra charge. The return after the repair is made by UPS.

The printed repair order belongs in the parcel, and the control unit must be packed shock-proof.