Airbag control unit with part number 77960-SWA-M011-M1

What does the airbag control unit 77960-SWA-M011-M1 do?

The airbag control unit 77960-SWA-M011-M1 is the central control unit of the restraint system (SRS) of Honda. It evaluates the crash sensors and determines in an accident which airbags and seatbelt pretensioners are triggered within milliseconds.

During operation the unit monitors all components. Detected faults are shown via the airbag warning light in the instrument cluster.

After an accident the unit creates crash data and locks itself.

Why does the control unit 77960-SWA-M011-M1 fail?

Crash data stored in the unit after an accident is the most common cause for the 77960-SWA-M011-M1, even if the airbag did not deploy. The other causes are aged electronics, cold solder joints, moisture and corrosion on plugs, and voltage spikes.

A standard diagnostic tool cannot remove this data, so it remains in the control unit.

The other triggers act in different ways. Electronics age, solder joints break or go cold, moisture and corrosion attack the contacts, and voltage spikes arise with a weak battery or a jump start.

How can you tell that the 77960-SWA-M011-M1 is defective?

A defect in the 77960-SWA-M011-M1 can be recognised by the airbag warning light, which lights up permanently or intermittently. In addition, fault messages, a missing connection to the diagnostic tool and a fault memory that cannot be cleared point to a malfunction.

The airbag warning light in the instrument cluster lights up permanently or switches on intermittently. A fault message then appears in the same instrument cluster.

If no connection to the control unit can be established, this indicates a malfunction. In an emergency, airbags and seatbelt pretensioners may possibly not deploy.

Which vehicles is the 77960-SWA-M011-M1 fitted in?

The control unit 77960-SWA-M011-M1 is fitted in these vehicles: Honda CR-V 3 RE (2006-2012). A comparison of the part number on the label with this page helps you to recognise the correct unit.

The assigned vehicles are listed here.

• Honda CR-V 3 RE (2006-2012)

Two pieces of advice will help you: first compare the label, then have the fault memory read out. Only the result of the read-out 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-SWA-G214-M4, 77960-SWA-S21, 77960-SWA-S214-M4, 77960-T0AA-110-M1, 77960-TA0-A031, 77960-TLA-A25.

How does the repair of the 77960-SWA-M011-M1 work?

Have the fault memory read out, attach the log and disconnect the battery. Then remove the control unit 77960-SWA-M011-M1, create a repair order online and send the unit in well packed.

The sequence must be observed for safety reasons. The control unit is only released once the battery has been disconnected.

At Airbag24 the unit is checked, defective components are replaced, stored crash data is erased and finally a function test is carried out. Processing 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-SWA-M011-M1 get to Airbag24?

You send the control unit 77960-SWA-M011-M1 as a parcel or book a UPS collection for an extra charge. After the repair UPS returns the unit to you.

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