Airbag control unit with part number 77960-SWA-M610-M1

What does the airbag control unit 77960-SWA-M610-M1 do?

The control unit 77960-SWA-M610-M1 controls the restraint system (SRS) in Honda vehicles. It evaluates signals from the crash sensors and decides within milliseconds in a collision which airbags and seatbelt pretensioners are triggered. It monitors the system continuously, and faults appear on the airbag warning light.

The electronics check sensors, wiring and seatbelt pretensioners. A detected fault is stored and reported via the warning light.

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

Why does the control unit 77960-SWA-M610-M1 fail?

The most common cause is crash data stored after an accident, even without an airbag deployment. Diagnostic tools in normal operation cannot remove this data. Other possible causes are ageing electronics, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes.

After the event the control unit stays in the vehicle, while the crash data remains in its memory.

The other influences act on the electronics over a longer period. Components age, solder joints can go cold, and moisture or corrosion affects plug connectors. Voltage spikes occur, for example, when the battery is weak or when a jump start is given.

Airbag24 deletes the crash data as part of the repair.

How can you tell that the 77960-SWA-M610-M1 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently when the 77960-SWA-M610-M1 is defective. An error message also appears in the instrument cluster, the diagnostic tool cannot find the control unit, and the fault memory remains. In an emergency, the airbags and seatbelt pretensioners may then fail to deploy.

The warning light is direct feedback from the system. It shows that something is wrong in the restraint system.

If the connection to the diagnostic tool fails, that is a further reason to have the system checked.

Which vehicles is the 77960-SWA-M610-M1 fitted in?

The control unit 77960-SWA-M610-M1 is fitted in this vehicle by Honda: Honda CR-V 3 RE (2006-2012).

The vehicle assignment for this number is shown in the overview below.

• Honda CR-V 3 RE (2006-2012)

Comparing the part number on the label of the removed unit with this page only tells you about the unit, not about the cause. For this reason, have the fault memory read out in advance. This shows whether the control unit is defective or whether plug connectors or cables are affected.

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-M610-M1 work?

First, the fault memory is read out and you enclose the log. Then you disconnect the battery, and only after that do you remove the control unit 77960-SWA-M610-M1. Testing, repair and the function test at Airbag24 usually take 3–4 working days.

You then create a repair order online and send in the carefully packed unit. Airbag24 tests it on the test bench, replaces defective components, deletes the 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-SWA-M610-M1 get to Airbag24?

You send the control unit 77960-SWA-M610-M1 as a parcel, or you arrange a UPS collection for an extra charge. After the repair, Airbag24 returns the unit to you by UPS.

The printed repair order goes into the parcel. Pack the control unit shock-proof so that it arrives undamaged.