Airbag control unit with part number 77960-SWA-F231-M4

What does the airbag control unit 77960-SWA-F231-M4 do?

The airbag control unit 77960-SWA-F231-M4 coordinates the restraint system (SRS) of Honda. It checks the signals from the crash sensors, decides on airbags and seatbelt pretensioners within milliseconds in an accident, and monitors the system permanently for faults.

It shows the result of these checks via the airbag warning light in the instrument cluster.

After an accident, the unit stores crash data and locks itself.

Why does the control unit 77960-SWA-F231-M4 fail?

Most often the 77960-SWA-F231-M4 fails because of crash data that remained in the memory after an accident, even if no airbag fired. An ordinary diagnostic tool does not erase it. In addition come ageing components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Crash data is retained until it is removed during the repair.

Ageing electronics and damp plugs are more of a long-term problem. Voltage spikes, on the other hand, occur suddenly, for example with a weak battery or when connected to a jump start.

How can you tell that the 77960-SWA-F231-M4 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently in the event of a defect in the 77960-SWA-F231-M4. Fault messages in the instrument cluster, a diagnostic tool without connection to the control unit and a fault memory that cannot be cleared are also present.

In an emergency, airbags and seatbelt pretensioners may then not trigger. Such signs should therefore lead you to an examination.

Which vehicles is the 77960-SWA-F231-M4 fitted in?

The 77960-SWA-F231-M4 was fitted at Honda in these vehicles: Honda CR-V 3 RE (2006-2012).

The vehicles are shown in the list below.

• Honda CR-V 3 RE (2006-2012)

On the one hand, compare the part number on the label of the removed unit with this page; this only confirms the identity of the unit. On the other hand, have the fault memory read out before you remove anything. Only the result 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-F231-M4 work?

Processing at Airbag24 usually takes 3–4 working days. In advance, have the fault memory read out, disconnect the battery and remove the 77960-SWA-F231-M4. Then create a repair order online and send the unit packed.

Airbag24 checks the unit, replaces defective components, erases crash data and carries out a function test.

Afterwards, the unit is 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-SWA-F231-M4 get to Airbag24?

You send the control unit 77960-SWA-F231-M4 to Airbag24 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

Put the printed repair order in the parcel and pack the unit shock-proof.