Airbag control unit with part number 77960-SZW-J013-M3

What does the airbag control unit 77960-SZW-J013-M3 do?

The airbag control unit 77960-SZW-J013-M3 is the central control unit of the SRS restraint system for Honda. From the signals of the crash sensors it calculates in a crash, within milliseconds, which airbags and seatbelt pretensioners to trigger, and it monitors the system continuously.

It signals faults via the airbag warning light. After an accident it stores crash data and then locks itself.

The monitoring works unobtrusively in the background.

Why does the control unit 77960-SZW-J013-M3 fail?

The most common cause with the 77960-SZW-J013-M3 is crash data stored after an accident, even if no airbag was triggered. Further causes may also come into consideration:

• ageing electronic components
• cold solder joints
• moisture and corrosion at plug connectors
• voltage spikes, for example from weak batteries or a jump start

Crash data cannot be erased with a standard diagnostic tool. At Airbag24 it is erased during the repair.

How can you tell that the 77960-SZW-J013-M3 is defective?

The airbag warning light in the instrument cluster indicates a fault on the 77960-SZW-J013-M3 as soon as it stays on permanently or intermittently. A fault message in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be cleared also point to a defect.

In an emergency, airbags and seatbelt pretensioners may fail to trigger in the event of such a defect. The warning light therefore remains a warning signal that must not be ignored.

Which vehicles is the 77960-SZW-J013-M3 fitted in?

The model assignment belongs to the part number 77960-SZW-J013-M3. The control unit is fitted in these vehicles: Honda Stepwgn 3rd generation (2005-2009).

The list in detail:

• Honda Stepwgn 3rd generation (2005-2009)

Comparing the number on the label of the unit with this page only ensures that you have removed the right unit. Whether the control unit itself is defective or a plug or cable is the cause is shown only by the read-out fault memory, which you should therefore have read out beforehand.

How does the repair of the 77960-SZW-J013-M3 work?

First have the fault memory read out and attach the log, then disconnect the battery and only then remove the control unit 77960-SZW-J013-M3. You create the repair order online, and then send in the well-packed unit. At Airbag24, checking, repairing and testing usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, erases the crash data and carries out a function test. Then the unit goes back 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-SZW-J013-M3 get to Airbag24?

The control unit 77960-SZW-J013-M3 reaches Airbag24 as a parcel, or you book a UPS collection for an extra charge. After the repair Airbag24 sends it back to you via UPS.

Enclose the printed repair order in the parcel, and pack the unit shock-resistant.