Airbag control unit with part number 77960-T0A-L013-M1

What does the airbag control unit 77960-T0A-L013-M1 do?

The airbag control unit 77960-T0A-L013-M1 is the central unit of the restraint system (SRS) in Honda vehicles. It processes the signals from the crash sensors, decides within fractions of a second in an accident on airbags and seatbelt pretensioners, and monitors all components continuously. After an accident it stores crash data and locks itself.

The unit shows detected faults via the airbag warning light.

The entire triggering of the safety systems runs through this unit, which is why its condition is decisive for the whole restraint system.

Why does the control unit 77960-T0A-L013-M1 fail?

The most common cause is stored crash data, even if no airbag has triggered; a normal diagnostic tool cannot erase it. Added to this are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump starting.

Crash data remains in the memory after an event. Airbag24 removes it during the repair.

Aged electronic components and cold solder joints can appear as intermittent faults.

Moisture and corrosion at plug connections impair the contact. Voltage spikes additionally stress the electronics.

How can you tell that the 77960-T0A-L013-M1 is defective?

The airbag warning light lights up permanently or intermittently in the instrument cluster. In addition there is an error message there, no contact with the diagnostic tool, and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may therefore fail to trigger.

The warning light is the most direct indication that something is wrong in the restraint system. The message in the instrument cluster and the lack of contact with the diagnostic tool confirm this picture.

A fault memory that cannot be cleared is therefore a finding that requires further clarification.

Which vehicles is the 77960-T0A-L013-M1 fitted in?

The 77960-T0A-L013-M1 is fitted in these vehicles: Honda CR-V 4 RM (2012-2018).

The vehicles for this part number are listed in the following overview:

• Honda CR-V 4 RM (2012-2018)

Compare the part number on the label of the removed unit with this page; this way you ensure it is the correct unit. Also have the fault memory read out beforehand, because only this log shows whether the control unit itself or a plug 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-L013-M1 work?

First read out the fault memory and attach the log, then disconnect the battery. Only then remove the control unit and create the repair order online. Processing at Airbag24 usually takes 3–4 working days.

Step by step it goes like this: first the log, then disconnecting and removal, finally the dispatch. This order serves safety.

At Airbag24 the unit is checked on the test bench, defective components are replaced, crash data is deleted and a function test is carried out. Your own unit then returns 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-L013-M1 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. UPS then brings the repaired unit from Airbag24 back to you.

The printed repair order belongs in the parcel; the unit must be packed shockproof.