Airbag control unit with part number 77960-TL0-E920-M1

What does the airbag control unit 77960-TL0-E920-M1 do?

The airbag control unit 77960-TL0-E920-M1 is the central control unit of the restraint system (SRS) for Honda. It evaluates signals from the crash sensors, decides in an accident which airbags and seatbelt pretensioners are triggered, and checks the system continuously.

If it detects a fault, it reports this via the airbag warning light in the instrument cluster. In this way the driver learns that something is wrong with the restraint system.

After an accident the unit stores crash data and locks itself. This is part of the fixed sequence of the electronics.

Why does the control unit 77960-TL0-E920-M1 fail?

Stored crash data after an accident is the most common cause on the 77960-TL0-E920-M1, even if no airbag has deployed. A normal diagnostic tool cannot remove it. Aged components, cold solder joints, moisture, corrosion and voltage spikes also play a role.

The term "erasable" means that Airbag24 deletes the crash data during the repair.

Aged electronic components and cold solder joints can impair the function. Moisture and corrosion at plug connections additionally disturb the contact, and voltage spikes, for example from weak batteries or when starting with external power, put strain on the electronics.

How can you tell that the 77960-TL0-E920-M1 is defective?

The airbag warning light in the instrument cluster lights up on the 77960-TL0-E920-M1 permanently or intermittently. In addition, an error message appears, the diagnostic tool cannot reach the control unit, and the fault memory cannot be cleared.

As long as these signs persist, airbags and seatbelt pretensioners may not trigger in an emergency. Please have the finding checked promptly.

Which vehicles is the 77960-TL0-E920-M1 fitted in?

The control unit 77960-TL0-E920-M1 is fitted in these vehicles: Honda Accord 8th generation (2008-2015).

The overview of vehicles:

• Honda Accord 8th generation (2008-2015)

When removing the unit, compare the part number on the label with this page; this only confirms that it is the correct unit. Also have the fault memory read out beforehand, because only this 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-S84-A86, 77960-TA0-A01, 77960-TA0-A011M4, 77960-TA0-A02, 77960-TA0-L02.

How does the repair of the 77960-TL0-E920-M1 work?

First read out the fault memory and include the log. Then disconnect the battery and only then remove the control unit 77960-TL0-E920-M1, before you create a repair order online. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit, repairs defective components, deletes the crash data and carries out a function test. Afterwards your own unit comes 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-TL0-E920-M1 get to Airbag24?

You send the control unit 77960-TL0-E920-M1 as a parcel or arrange a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Enclose the printed repair order in the parcel, and the packaging must protect the unit against shocks.