Airbag control unit with part number 77960-SHJ-C014-M1

What does the airbag control unit 77960-SHJ-C014-M1 do?

The 77960-SHJ-C014-M1 is the central control unit of the restraint system (SRS) for Honda. It continuously monitors the system, evaluates the signals from the crash sensors and decides in a crash which airbags and seatbelt pretensioners are triggered. After an accident it stores crash data and locks itself.

If the control unit detects a fault, it shows it via the airbag warning light in the instrument cluster. The evaluation runs in the background, without the driver having to operate anything.

The crash data is the record of the accident event. It stays stored in the control unit and is therefore one of the first things checked during fault diagnosis.

Why does the control unit 77960-SHJ-C014-M1 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a standard diagnostic tool cannot erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

The crash data remains in memory because the unit records the event, even if the vehicle continues to drive without any apparent problems. A diagnostic tool cannot reach this record to simply remove it.

The other causes develop over a longer period. Electronic components age, solder joints can become cold, and moisture or corrosion at plug connections disrupts contact. Voltage spikes, for example from a weak battery or a jump start, place additional strain on the circuitry.

How can you tell that the 77960-SHJ-C014-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 cannot establish a connection with the control unit, and the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may fail to deploy in the event of such a defect. That is why the warning light is not a detail you can ignore.

If you take the warning seriously and have it checked promptly, you keep an eye on the restraint system. The light indicates the defect, and reading out the fault memory will then clarify the cause.

Which vehicles is the 77960-SHJ-C014-M1 fitted in?

The 77960-SHJ-C014-M1 is fitted by Honda in these vehicles: Honda Odyssey 4th generation (2008-2013). The assignment applies only to the control unit with this part number.

The known vehicles are listed here:

• Honda Odyssey 4th generation (2008-2013)

Before you send in the unit, compare the part number on the label with this page. This only confirms that it is the correct unit. You should also have the fault memory read out, because only then will it become clear whether the control unit itself is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 77960-SHJ-A013-M1, 77960-SHJA020M1, 77960-SHJC-012-M1, 77960-TK8-A011-M1.

How does the repair of the 77960-SHJ-C014-M1 work?

First have the fault memory read out and attach the log to the unit. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the control unit on the test bench and repairs defective components. Airbag24 erases stored crash data during the repair, followed by a function test. The unit then goes back to you.

The order of these steps is for your safety, because the airbag system must not be touched carelessly during removal. That is why the battery is always disconnected before removal.

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-SHJ-C014-M1 get to Airbag24?

You send the unit in as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Place the printed repair order in the parcel and pack the control unit shockproof.