Airbag control unit with part number 77960-SKN-E012-M1

What does the airbag control unit 77960-SKN-E012-M1 do?

The control unit 77960-SKN-E012-M1 is the airbag control unit of the restraint system (SRS) for Honda: it processes the measured values from the crash sensors, determines in an emergency which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. After an accident, it stores crash data and locks itself.

Triggering takes place within milliseconds of an impact. At the same time, the unit checks the lines to the components and reports faults via the airbag warning light.

Only the repair at Airbag24 lifts the lock after an accident.

Why does the control unit 77960-SKN-E012-M1 fail?

Most often it is caused by crash data from an earlier accident, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Aged components, cold solder joints, moisture and corrosion at plugs, as well as voltage spikes from weak batteries or jump-starting, are also possible.

The crash data remain stored in the unit as long as no one removes them deliberately. At Airbag24 this happens during the repair.

The other causes concern the electronics and their connections. A damp plug or a weak battery strains the unit, much like the age of its components.

How can you tell that the 77960-SKN-E012-M1 is defective?

The airbag warning light in the instrument cluster lights up constantly or only intermittently, an error message appears in the instrument cluster, the diagnostic tool cannot reach the control unit, and the fault memory cannot be cleared. Then airbags and seatbelt pretensioners may not trigger in an emergency.

The light is the sign you are most likely to notice, and it shows the fault as soon as the system detects it. Do not postpone the readout when the light comes on; have the fault memory read promptly.

Which vehicles is the 77960-SKN-E012-M1 fitted in?

The control unit 77960-SKN-E012-M1 is fitted in these vehicles: Honda CR-V 3 RE (2006-2012).

The list shows the vehicles on record for this part number:

• Honda CR-V 3 RE (2006-2012)

First, compare the part number on the label of the removed unit with this page; this only confirms that it is the right unit. Second, have the fault memory read out in advance, because only that 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-SKN-E012-M1 work?

Have the fault memory read out before removal and attach the log; then disconnect the battery and only then remove the control unit. Afterwards create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

There the unit is checked on the test bench, defective components are renewed, the crash data are erased and a function test is carried out. Afterwards your own unit goes back to you.

The sequence when removing the unit is for safety reasons and is therefore mandatory.

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-SKN-E012-M1 get to Airbag24?

You send the control unit 77960-SKN-E012-M1 as a parcel or book UPS collection for an extra charge. After the repair, Airbag24 returns the unit by UPS.

Put the printed repair order in the parcel, and the unit must be packed shockproof.