Airbag control unit with part number 77960-T0A-C013-M1

What does the airbag control unit 77960-T0A-C013-M1 do?

The airbag control unit 77960-T0A-C013-M1 forms the central switching unit for airbags and seatbelt pretensioners in the Honda. It recognises accidents from the sensor values and decides within milliseconds on triggering. After an accident it stores crash data and locks itself.

Monitoring runs continuously in the background. Deviations end up in the fault memory, and the airbag warning light makes them visible to the driver.

Why does the control unit 77960-T0A-C013-M1 fail?

The most common cause is crash data that are stored after an accident, even when no airbag was triggered. They cannot be removed with a usual diagnostic tool. Aged components, cold solder joints, moisture and corrosion on plug connections, as well as voltage spikes, are also possible causes.

Crash data are stored in the control unit itself, so an erase attempt from outside has no effect. Airbag24 removes them specifically during the repair.

Aged components, cold solder joints and moisture at contacts are creeping problems that take effect over a longer period. Voltage spikes, by contrast, act suddenly, for example when a jump start is connected or with a weak battery.

How can you tell that the 77960-T0A-C013-M1 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently as soon as the fault is detected. In addition there is an error message in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared. Airbags and seatbelt pretensioners may then possibly not trigger in an emergency.

The light alone does not yet reveal where the fault comes from. Only the readout shows whether the control unit itself is affected.

Which vehicles is the 77960-T0A-C013-M1 fitted in?

The control unit 77960-T0A-C013-M1 can be found in these vehicles: Honda CR-V 4 RM (2012-2018).

The list of vehicles recorded for this part number follows below.

• Honda CR-V 4 RM (2012-2018)

Compare the part number on the label of the removed unit with this page to check that it is the right unit. Whether it is defective is not shown by this comparison.

Also have the fault memory read out before removal. The result shows whether the control unit is defective or whether plugs and cables are 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-C013-M1 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, remove the control unit 77960-T0A-C013-M1 and create the repair order online. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24 the unit is checked, defective components are repaired, the crash data are erased and a function test is carried out. The return of your own unit follows.

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-C013-M1 get to Airbag24?

The control unit 77960-T0A-C013-M1 goes to Airbag24 either as a parcel or with a UPS collection booked for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Put the printed repair order into the parcel and pack the unit shock-resistant.