Airbag control unit with part number 77960-T5C-J850-M1

What does the airbag control unit 77960-T5C-J850-M1 do?

The airbag control unit 77960-T5C-J850-M1 is the central control unit of the restraint system (SRS) for Honda. It evaluates the crash sensors, decides within milliseconds in a crash whether airbags and seatbelt pretensioners are triggered, and shows faults via the airbag warning light.

The control unit monitors the system continuously. After an accident it stores crash data and locks itself.

Why does the control unit 77960-T5C-J850-M1 fail?

The most common cause is stored crash data after an accident, even if no airbag has deployed. Other causes are aged components, cold solder joints and moisture at plug connections.

Crash data cannot be erased with a standard diagnostic tool. Airbag24 erases it during the repair. Other causes at a glance:

• Corrosion at plug connections
• Voltage spikes, for example from a weak battery
• Jump-starting as a source of electrical stress

How can you tell that the 77960-T5C-J850-M1 is defective?

If the 77960-T5C-J850-M1 is defective, the airbag warning light in the instrument cluster lights up permanently or intermittently. The instrument cluster also shows an error message, and the fault memory cannot be cleared.

The diagnostic tool also cannot connect to the control unit. As long as the fault exists, airbags and seatbelt pretensioners may not trigger in an emergency, so please have it checked promptly.

Which vehicles is the 77960-T5C-J850-M1 fitted in?

The control unit 77960-T5C-J850-M1 is fitted in these vehicles: Honda Jazz GK (2013-2023). You can easily check your car against the list.

You will find the vehicles with this control unit here:

• Honda Jazz GK (2013-2023)

First compare the part number on the label of the removed unit with this page; this only confirms that it is the right unit. Also have the fault memory read out, because only the log shows whether the control unit 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-T5C-J850-M1 work?

Checking, repair and function test at Airbag24 usually take 3–4 working days. First read out the fault memory and enclose the log, then disconnect the battery and remove the control unit. After that, create a repair order online and send the unit in.

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. Your own unit is then returned 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-T5C-J850-M1 get to Airbag24?

You send the control unit 77960-T5C-J850-M1 as a parcel or book a UPS collection for an extra charge. After the repair, UPS returns it to you.

The printed repair order goes into the parcel, and the unit should be packed shockproof.