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

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

The 77960-SJC-A111-M1 controls the restraint system (SRS) of Honda. It evaluates the signals from the crash sensors, decides in an accident within milliseconds which airbags and seatbelt pretensioners are triggered, and monitors the entire system continuously.

The control unit detects faults in the system itself and reports them via the airbag warning light in the instrument cluster. This light is therefore the place where you first see a problem.

After an accident, the unit stores crash data and locks itself. There is nothing more to say on this, because the lock ends only with a repair.

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

Crash data stored after an accident is the most common cause for the 77960-SJC-A111-M1, even if no airbag has deployed. Further causes are aged components, cold solder joints, moisture on plugs and voltage spikes.

The crash data remains in memory, and an ordinary diagnostic tool does not change that. A failure of this kind therefore has nothing to do with a lack of care, but with what the unit recorded during an accident.

The other causes are general in nature. Electronic components age, solder joints can be cold, moisture promotes corrosion at plug connections, and voltage spikes occur, for example, with a weak battery or when starting with a jump start.

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

The airbag warning light in the instrument cluster lights up on the 77960-SJC-A111-M1 permanently or intermittently. A fault message accompanies it, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared. In that state, the airbags and seatbelt pretensioners may not be able to deploy in an emergency.

The airbag warning light is the direct indication of the state of the system, and it cannot be overlooked. Take it seriously and have the cause checked.

A connection problem with the diagnostic tool is also among the findings that justify an examination, because the control unit may be the cause.

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

The 77960-SJC-A111-M1 is fitted in these vehicles: Honda Ridgeline 1st generation (2005-2014).

The list shows the vehicles known to us for this unit:

• Honda Ridgeline 1st generation (2005-2014)

Compare the part number on the label of the removed unit with this page. This only ensures that it is the correct unit. Also have the fault memory read out beforehand, because only this log shows whether the control unit is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 77960-T6Z-A01, 77960-T6Z-A02, 77960-T6Z-A03, 77960SJCA210M1, 77960T6ZA030M2.

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

First have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the packed 77960-SJC-A111-M1 in.

Airbag24 checks the unit on the test bench, repairs defective components, erases the stored crash data and carries out a function test. Your own unit is then returned to you.

Processing at Airbag24 usually takes 3–4 working days. This time applies only to inspection, repair and testing at Airbag24.

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-SJC-A111-M1 get to Airbag24?

You send the 77960-SJC-A111-M1 as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

The printed repair order goes into the parcel. Pack the control unit shockproof before it is dispatched.