Airbag control unit with part number 77960-TL0-Q910-M1

What does the airbag control unit 77960-TL0-Q910-M1 do?

The airbag control unit 77960-TL0-Q910-M1 forms the central control of the restraint system (SRS) of Honda. It checks the crash sensors, decides in an accident within a fraction of a second on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously.

The unit detects faults itself and shows them via the airbag warning light. In this way the state of the system remains visible to the driver.

After an accident, the control unit stores crash data and locks itself. The lock is only lifted by the repair.

Why does the control unit 77960-TL0-Q910-M1 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool does not erase it. Other causes include ageing electronics, cold solder joints, moisture and corrosion at plugs, and voltage spikes.

Airbag24 erases the crash data during the repair. Only then is the control unit back in its original state, provided no other cause is present.

Ageing electronics and cold solder joints develop over a longer period. Moisture and corrosion attack the plug connections, while voltage spikes can occur, for example, when starting with external power.

How can you tell that the 77960-TL0-Q910-M1 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. In addition, the instrument cluster shows a fault message, the diagnostic tool finds no connection to the control unit, or the fault memory remains.

• airbag warning light on permanently or intermittently
• fault message in the instrument cluster
• no connection to the diagnostic tool
• fault memory cannot be cleared

A lit warning light is a clear sign. In an emergency, airbags and seatbelt pretensioners may not be able to deploy, so a check should not be put off.

The signs alone do not reveal the cause. Reading out the fault memory provides information on this.

Which vehicles is the 77960-TL0-Q910-M1 fitted in?

The 77960-TL0-Q910-M1 is fitted in these vehicles: Honda Accord 8th generation (2008-2015).

These vehicles are recorded for this part number:

• Honda Accord 8th generation (2008-2015)

Comparing the part number on the label of the removed unit with this page only shows that it is the right unit.

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

For the same vehicles, we also repair control units with the part numbers 77960-S84-A86, 77960-TA0-A01, 77960-TA0-A011M4, 77960-TA0-A02, 77960-TA0-L02.

How does the repair of the 77960-TL0-Q910-M1 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only then remove the unit. Processing at Airbag24 usually takes 3–4 working days.

Next, create a repair order online and send the unit in good packaging. Airbag24 checks it on the test bench, replaces defective components, erases stored crash data and carries out a functional test.

The 3–4 working days apply only to checking, repairing and testing at Airbag24. Your own unit is then 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-TL0-Q910-M1 get to Airbag24?

You send the device 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. The control unit must be packed shock-proof.