Airbag control unit with part number 77960-TK8-A011-M2

What does the airbag control unit 77960-TK8-A011-M2 do?

The airbag control unit 77960-TK8-A011-M2 is responsible for the restraint system (SRS) of Honda. It evaluates the crash sensors, decides within milliseconds in an accident on airbags and seatbelt pretensioners, and monitors the system continuously. After a crash, it stores crash data and locks itself.

The system runs in the background throughout the whole journey. If the control unit detects a fault, it displays it via the airbag warning light.

Why does the control unit 77960-TK8-A011-M2 fail?

On the control unit 77960-TK8-A011-M2, the most common cause is crash data stored after an accident, even if no airbag has deployed. These cannot be erased with an ordinary diagnostic tool. Further causes are aged electronics, cold solder joints, moisture and corrosion, and voltage spikes, for example from a weak battery or a jump start.

Stored crash data remains in the unit because the control unit records the accident.

The other causes develop over time, for example through ageing or moisture.

How can you tell that the 77960-TK8-A011-M2 is defective?

Primarily, you recognise a defect on the control unit 77960-TK8-A011-M2 by the airbag warning light, which lights up permanently or intermittently. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

Accompanying this, a fault message appears in the instrument cluster, the diagnostic tool cannot reach the control unit, and the fault memory cannot be cleared. Have the fault memory read out as soon as the warning light comes on.

A warning is to be taken seriously even when the vehicle runs inconspicuously in everyday use.

Which vehicles is the 77960-TK8-A011-M2 fitted in?

The airbag control unit 77960-TK8-A011-M2 is fitted in these vehicles: Honda Odyssey 4th generation (2008-2013) and 5th generation (from 2013).

The following list shows the assignment:

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

Compare the part number on the label with this page to confirm that you have the correct unit. Independently of this, only the read-out fault memory 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-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-A011-M2 work?

Have the fault memory read out and attach the log before you disconnect the battery. Only then remove the control unit 77960-TK8-A011-M2 and create the repair order online. Afterwards, pack the unit well and send it in.

On the test bench, Airbag24 examines the unit, replaces defective components, deletes the crash data and runs a function test. Afterwards, your own unit is returned.

Airbag24 usually needs 3–4 working days for this.

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-A011-M2 get to Airbag24?

You send the control unit 77960-TK8-A011-M2 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Enclose the printed repair order in the parcel and pack the unit shock-resistant.