Airbag control unit with part number 77960-TK8-D110-M1

What does the airbag control unit 77960-TK8-D110-M1 do?

The airbag control unit 77960-TK8-D110-M1 is the central component of the SRS restraint system in Honda vehicles. The signals from the crash sensors are evaluated here, and in an accident the unit decides within milliseconds on triggering airbags and seatbelt pretensioners.

The system monitors itself continuously; detected faults appear via the airbag warning light. After an accident the unit stores crash data and locks itself.

Why does the control unit 77960-TK8-D110-M1 fail?

Stored crash data comes first: it stays in the unit after an accident, even if no airbag fired, and cannot be removed with a normal diagnostic tool. This is the most common cause for the 77960-TK8-D110-M1. Other possible causes are aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

During the repair, Airbag24 removes the crash data.

Solder joints and electronics change over time. Moisture or corrosion on contacts disturbs signal transmission.

Voltage spikes, for example when starting with an external power source, stress sensitive circuits.

How can you tell that the 77960-TK8-D110-M1 is defective?

The airbag warning light in the instrument cluster shows a defect on the 77960-TK8-D110-M1 by lighting up permanently or intermittently. Accompanying this, a fault message appears in the instrument cluster, the diagnostic tool loses contact with the control unit, and the fault memory cannot be cleared.

In a real emergency, airbags and seatbelt pretensioners may fail to fire. Therefore have the vehicle checked promptly.

Which vehicles is the 77960-TK8-D110-M1 fitted in?

The part number 77960-TK8-D110-M1 is recorded for several models. The airbag control unit 77960-TK8-D110-M1 is fitted in these vehicles: Honda Odyssey 4th generation (2008-2013) and 5th generation (from 2013).

The vehicles are listed one below another here:

• Honda Odyssey 4th generation (2008-2013)
• Honda Odyssey 5th generation (from 2013)

First compare the part number on the label of the removed unit with this page, which confirms that you have the right unit. Then have the fault memory read out. Only this result shows whether the control unit is defective or whether a connector or cable is behind it.

For the same vehicles, we also repair control units with the part numbers 77960-SHJ-A013-M1, 77960-SHJA020M1, 77960-SHJC-012-M1, 77960-THR-A02, 77960-THR-A03, 77960-TK8-A011-M1.

How does the repair of the 77960-TK8-D110-M1 work?

The fault memory is read out first, and you attach the log. Then disconnect the battery and remove the control unit. Next create a repair order online and send the 77960-TK8-D110-M1 off well packed.

At Airbag24 the team checks the unit on the test bench, repairs defective components, erases stored crash data and runs a function test. Processing there usually takes 3–4 working days.

Afterwards your own unit is returned to you.

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-TK8-D110-M1 get to Airbag24?

You send the control unit 77960-TK8-D110-M1 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

Put the printed repair order in the parcel and pack the unit shock-proof.