Airbag control unit with part number 77960-SZA-A111-M1

What does the airbag control unit 77960-SZA-A111-M1 do?

The restraint system (SRS) of Honda is controlled by the airbag control unit 77960-SZA-A111-M1. This unit processes the signals from the crash sensors, decides within milliseconds in an accident whether to trigger, and monitors the system continuously.

The unit indicates detected faults via the airbag warning light. After an accident it also stores crash data and locks itself.

Why does the control unit 77960-SZA-A111-M1 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. Other causes are aged electronics, cold solder joints, moisture and corrosion, and voltage spikes. On this control unit, erasing the crash data is often not possible; if you want the data erased, contact Airbag24 briefly before sending the unit in, and Airbag24 will then check the part number.

Crash data remains stored in the control unit, and a normal diagnostic tool cannot remove it. Repairing a defect remains possible in the normal way.

The remaining causes are of a more general nature: electronic components age, solder joints can go cold, and moisture or corrosion affect plug connections.

Voltage spikes, for example from a weak battery or a jump start, can also stress the unit.

How can you tell that the 77960-SZA-A111-M1 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and a fault message appears in the instrument cluster. The diagnostic tool also gets no connection to the control unit, and the fault memory cannot be cleared.

As long as the defect exists, airbags and seatbelt pretensioners may fail to trigger in an emergency. The warning light is therefore a warning signal that you should take seriously.

Which vehicles is the 77960-SZA-A111-M1 fitted in?

The 77960-SZA-A111-M1 is found in the following vehicles: Honda Pilot 2nd generation (2008-2011) and 2nd generation Facelift (2011-2015).

The vehicles are listed individually here:

• Honda Pilot 2nd generation (2008-2011)
• Honda Pilot 2nd generation Facelift (2011-2015)

Comparing the part number with the label of the removed unit only confirms that it is the right unit. Whether the control unit itself is defective or a plug or a cable is the cause can only be determined from the fault memory. So have it read out beforehand.

How does the repair of the 77960-SZA-A111-M1 work?

First have the fault memory read out, enclose the log and then disconnect the battery; only then remove the control unit. Next, create a repair order online and send the unit in well packed. Airbag24 checks it, repairs defective components and carries out a function test before your own unit is sent back.

If you want the crash data erased, contact Airbag24 briefly before sending the unit in.

The processing at Airbag24 itself, that is the checking, repairing and testing, 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-SZA-A111-M1 get to Airbag24?

Either you send the unit off as a parcel or you book a UPS collection for an extra charge. Airbag24 sends it back by UPS after the repair.

You put the printed repair order into the parcel, and pack the unit shockproof.