Airbag control unit with part number 77960-SZT-J910-M2

What does the airbag control unit 77960-SZT-J910-M2 do?

In the restraint system (SRS) of Honda, the 77960-SZT-J910-M2 takes over the evaluation. It assesses the signals from the crash sensors and, in an accident, selects within milliseconds which airbags and seatbelt pretensioners fire. It shows faults via the airbag warning light.

The system is checked continuously during operation so that deviations are noticed early.

After an accident, crash data are stored in the unit, and it locks itself as a result.

Why does the control unit 77960-SZT-J910-M2 fail?

The most common reason for a failure of the 77960-SZT-J910-M2 is crash data that remain in the memory even though no airbag has fired. An ordinary diagnostic tool cannot remove them; Airbag24 erases them during the repair.

An airbag does not have to have fired for crash data to be created. The unit registers the event and keeps the entry.

In addition, aged components, poorly soldered points, and moisture or rust on the plugs can be causes. Voltage spikes, for example from a weak battery or a jump start, can also damage the unit.

Which of these causes applies is shown by the examination on the test bench, not by a look into the vehicle.

How can you tell that the 77960-SZT-J910-M2 is defective?

The airbag warning light in the instrument cluster indicates a fault as soon as it stays on permanently or only intermittently. Error messages may be added, a diagnostic tool without contact to the control unit, or a fault memory that cannot be emptied. In an emergency, airbags and seatbelt pretensioners may not be able to trigger.

The light is the first sign you notice in everyday use. If it stays on permanently or flickers, there is a fault that should be checked.

So that such symptoms do not go unnoticed, a prompt check is worthwhile.

Which vehicles is the 77960-SZT-J910-M2 fitted in?

The 77960-SZT-J910-M2 belongs to the following vehicles: Honda CR-Z ZF1 (2010-2016).

Here are the vehicles we have on record for this part number:

• Honda CR-Z ZF1 (2010-2016)

Read out the fault memory before removal. Then you know whether plugs or cables can be ruled out as the cause, and you can compare the part number on the unit with this page.

For the same vehicles, we also repair control units with the part numbers 77960-SZT-A011, 77960-SZT-A011-M2.

How does the repair of the 77960-SZT-J910-M2 work?

You first read out the fault memory, disconnect the battery and remove the 77960-SZT-J910-M2. Afterwards you create the repair order online. Processing of the 77960-SZT-J910-M2 at Airbag24 usually takes 3–4 working days.

The fault memory log belongs in the order. When removing the unit, take care not to damage the plug connections.

Airbag24 then examines the control unit on the test bench, replaces defective components and removes the crash data. A function test follows, and only then does your own unit go back.

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-SZT-J910-M2 get to Airbag24?

You send the control unit 77960-SZT-J910-M2 as a parcel to us, or you book a UPS collection for an extra charge. After the repair it is returned by UPS.

The printed repair order belongs in the parcel, and the unit should be packed shockproof.