Airbag control unit with part number 77960-T0A-A210-M1

What does the airbag control unit 77960-T0A-A210-M1 do?

The airbag control unit 77960-T0A-A210-M1 coordinates the restraint system (SRS) in the Honda vehicle. It analyses the data from the crash sensors and determines in a fraction of a second which airbags and seatbelt pretensioners are triggered in an accident.

In addition, the system is monitored without a break, and faults appear via the airbag warning light.

After an accident the unit creates crash data and locks itself.

Why does the control unit 77960-T0A-A210-M1 fail?

Stored crash data most often leads to the failure of the 77960-T0A-A210-M1, even if no airbag has triggered. A normal diagnostic tool cannot erase it; other triggers are aged electronics, cold solder joints, moisture, corrosion and voltage spikes.

Even an accident without a triggered airbag can leave crash data, which then remains in the memory.

Moisture and corrosion at plug connectors as well as cold solder joints disturb the contact to the electronics. Aged components become more prone to faults over time.

Voltage spikes, such as with a weak battery or a jump start, also affect the unit.

How can you tell that the 77960-T0A-A210-M1 is defective?

The defect on the 77960-T0A-A210-M1 shows mainly through the airbag warning light in the instrument cluster, when it lights up permanently or intermittently. In addition, fault messages, connection problems with the diagnostic tool and a fault memory that cannot be cleared may occur.

The signs at a glance:

• Fault message in the instrument cluster
• Diagnostic tool without connection to the control unit
• Fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may then not deploy.

Which vehicles is the 77960-T0A-A210-M1 fitted in?

The 77960-T0A-A210-M1 is fitted in these vehicles: Honda CR-V 4 RM (2012-2018).

The vehicles to which this part number is assigned are shown in the list.

• Honda CR-V 4 RM (2012-2018)

The part number on the label of the removed unit should be compared with this page. This only confirms the correct unit and says nothing about the cause. Have the fault memory read out, because its contents show whether the control unit is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 5WK43782, 77960-SWA-G212-M4, 77960-SWA-G214-M4, 77960-T1G-G920-M4.

How does the repair of the 77960-T0A-A210-M1 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only then remove the 77960-T0A-A210-M1.

Create a repair order online and send the unit in, well packed.

Airbag24 checks the unit on the test bench, replaces defective components, erases the crash data and carries out a function test. Processing at Airbag24 normally takes 3–4 working days; afterwards the unit goes 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-T0A-A210-M1 get to Airbag24?

You send the control unit 77960-T0A-A210-M1 as a parcel or book a UPS collection for an extra charge. The return shipment is made by UPS after the repair.

Include the printed repair order and pack the control unit shockproof.