Airbag control unit with part number 77960-T5A-H620-M1

What does the airbag control unit 77960-T5A-H620-M1 do?

The airbag control unit 77960-T5A-H620-M1 forms the central control hub of the restraint system (SRS) of Honda. It processes the sensor data, determines the triggering of the airbags and seatbelt pretensioners within milliseconds in a crash, and checks the system permanently. After an accident it stores crash data and locks itself.

The crash sensors continuously supply the unit with values, which it assesses against fixed criteria. This allows the decision to be made without delay in an emergency.

The control unit registers faults in the system and reports them via the airbag warning light in the instrument cluster.

Why does the control unit 77960-T5A-H620-M1 fail?

The most common cause is a crash data entry from an earlier accident, even without an airbag having triggered; a standard diagnostic tool does not remove it. Added to this are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example with a weak battery or jump-starting.

The crash data lies invisibly in the unit. It disappears again during the repair.

The other causes concern the hardware. Components age, solder joints can stay cold, and moisture attacks plug contacts.

How can you tell that the 77960-T5A-H620-M1 is defective?

A defect in the 77960-T5A-H620-M1 can be recognised by several signs. The most important warning is the airbag warning light in the instrument cluster.

Typical signs are:

• The airbag warning light stays on permanently or intermittently.
• An error message appears in the instrument cluster.
• The diagnostic tool receives no connection to the control unit.
• The fault memory cannot be cleared.

With these signs, airbags and seatbelt pretensioners may not trigger in an emergency. A prompt check is therefore advisable.

Which vehicles is the 77960-T5A-H620-M1 fitted in?

The airbag control unit 77960-T5A-H620-M1 is fitted in these vehicles: Honda Jazz GK (2013-2023).

The following assignment exists for these models:

• Honda Jazz GK (2013-2023)

Comparing the part number on the label of the removed unit with this page ensures that it is the correct unit, nothing more. Whether the control unit is defective or a connector or cable is the cause is shown only by the fault memory. Therefore have it read out beforehand.

For the same vehicles, we also repair control units with the part numbers 77960-SAA-F911-M1, 77960-SAA-G821-M1.

How does the repair of the 77960-T5A-H620-M1 work?

First have the fault memory read out and enclose the log with the parcel. Then disconnect the battery and remove the control unit 77960-T5A-H620-M1. Then create a repair order online and send the well-packed unit.

Airbag24 checks the control unit on the test bench, replaces defective components and erases stored crash data. A function test completes the repair, after which your own unit goes back.

Processing at Airbag24 usually takes 3–4 working days.

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-H620-M1 get to Airbag24?

You send the control unit 77960-T5A-H620-M1 as a parcel, or you book a UPS collection for an extra charge. The return after the repair follows by UPS.

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