Airbag control unit with part number 77960-THR-Y210-M2

What does the airbag control unit 77960-THR-Y210-M2 do?

The airbag control unit 77960-THR-Y210-M2 is the central control unit for the restraint system of Honda. It checks the crash sensors, decides in an accident on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously. After an accident it stores crash data and locks itself.

Reported faults appear via the airbag warning light in the instrument cluster. This tells you that something in the system is not right.

The control must work without delay in an emergency, which is why it is designed for a single task.

Why does the control unit 77960-THR-Y210-M2 fail?

The most common cause of the 77960-THR-Y210-M2 is crash data stored after an accident, even without airbag triggering. In addition, aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes come into consideration.

A normal diagnostic tool cannot remove this data, and so the entry remains in the memory. Airbag24 deletes the crash data during the repair.

Cold solder joints and corrosion at plug connections lead to unclean contacts that only show up under certain conditions.

Voltage spikes, for example from a weak battery or jump-starting, can also be a trigger. Aged electronic components play a role as well.

How can you tell that the 77960-THR-Y210-M2 is defective?

A fault in the 77960-THR-Y210-M2 first shows itself on the airbag warning light in the instrument cluster, which lights up permanently or intermittently. Added to this are an error message in the instrument cluster, a diagnostic tool without connection to the control unit and a fault memory that cannot be cleared.

Typical signs at a glance:

• Airbag warning light permanently on or intermittently on
• Error message in the instrument cluster
• Diagnostic tool does not find the control unit
• Fault memory cannot be cleared

In this case, triggering of airbags and seatbelt pretensioners in an emergency could fail. Therefore have the system checked promptly.

Which vehicles is the 77960-THR-Y210-M2 fitted in?

The 77960-THR-Y210-M2 is installed in these vehicles: Honda Odyssey 5th generation (from 2013).

The overview below lists the vehicles that are known to us for this unit.

• Honda Odyssey 5th generation (from 2013)

You carry out the label comparison yourself: the number on the removed unit must match the number on this page. That only establishes that it is the right unit.

Have the fault memory read out before removal. The result shows whether the control unit is defective or whether a plug or cable is the cause.

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-THR-Y210-M2 work?

First have the fault memory read out and attach the log, then disconnect the battery, and only then remove the control unit. Afterwards create a repair order online and send in the packed unit. At Airbag24 the processing of the 77960-THR-Y210-M2 usually takes 3–4 working days.

Airbag24 examines the unit on the test bench and remedies the defects found. Afterwards Airbag24 deletes the stored crash data and carries out a function test. Only then does your own unit go back 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-THR-Y210-M2 get to Airbag24?

You send the control unit 77960-THR-Y210-M2 in as a parcel or additionally book a UPS collection. Airbag24 sends it back to you by UPS after the repair.

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