Airbag control unit with part number 77960-T6A-P730-M2

What does the airbag control unit 77960-T6A-P730-M2 do?

The airbag control unit 77960-T6A-P730-M2 controls the SRS restraint system for Honda. It reads the signals from the crash sensors, decides in an accident within milliseconds which airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

If the system reports a fault, it appears via the airbag warning light. After an accident the control unit records crash data, after which it remains locked.

Why does the control unit 77960-T6A-P730-M2 fail?

With the 77960-T6A-P730-M2, the most common cause is crash data stored after an accident, even if no airbag was deployed. Such data cannot be deleted with a normal diagnostic tool. Other causes are aged components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

Crash data arises in the unit after an accident. The entries remain even when the vehicle subsequently drives normally again.

Further influences also act on the unit:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connectors
• voltage spikes, for example from a weak battery or a jump start

How can you tell that the 77960-T6A-P730-M2 is defective?

A defect in the 77960-T6A-P730-M2 becomes visible through the airbag warning light, which lights up permanently or intermittently in the instrument cluster. Fault messages, a missing diagnostic connection to the control unit or a fault memory that cannot be cleared are added to this. Airbags and seatbelt pretensioners may then fail to deploy in an emergency.

These signs show up, for example, like this:

• Airbag warning light permanently on
• Airbag warning light switching on and off
• Message in the instrument cluster
• Diagnostic tool does not find the control unit
• The fault memory cannot be cleared

With any of these signs, a prompt check is worthwhile.

Which vehicles is the 77960-T6A-P730-M2 fitted in?

The control unit 77960-T6A-P730-M2 is fitted in these vehicles: Honda Odyssey 5th generation (from 2013). Whether it is itself defective can only be clarified with the log of the fault memory read-out.

These vehicles are listed:

• Honda Odyssey 5th generation (from 2013)

A glance at the label of the removed unit is enough for the comparison with this page, and then you know it is the matching unit. However, this does not confirm the cause. Have the fault memory read out so that it becomes clear whether the control unit is defective or a connector or cable is affected.

For the same vehicles, we also repair control units with the part numbers 77960-THR-A02, 77960-THR-A03, 77960-TK8-A011-M1, 77960-TK8-D01.

How does the repair of the 77960-T6A-P730-M2 work?

First have the fault memory read out and attach the log. Then disconnect the battery and remove the control unit. Next, pack the unit well and send it in with a repair order created online.

The unit is removed only after the battery has been disconnected, because this sequence protects during work on the vehicle.

Processing at Airbag24 usually takes 3–4 working days. During this time Airbag24 checks the unit on the test bench, renews defective components, deletes stored crash data and carries out a function test. Afterwards you receive your own, repaired unit back.

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-T6A-P730-M2 get to Airbag24?

You send the control unit 77960-T6A-P730-M2 either as a parcel or book a UPS collection for an extra charge. Airbag24 sends the repaired unit back by UPS afterwards.

Place the printed repair order with the parcel, and pack the unit shock-resistant.