Airbag control unit with part number 77960-TG7-A210-M2

What does the airbag control unit 77960-TG7-A210-M2 do?

The airbag control unit 77960-TG7-A210-M2 coordinates the restraint system (SRS) at Honda and decides within milliseconds in an accident which airbags and seatbelt pretensioners are triggered. To do so it continuously evaluates the signals of the crash sensors. If it detects a fault, it displays it via the airbag warning light.

The unit checks the system continuously during operation. In normal operation nothing of this is noticeable.

After an accident it stores crash data and locks itself. The effects of this lock on diagnosis and repair are described in the further sections.

Why does the control unit 77960-TG7-A210-M2 fail?

Stored crash data after an accident count as the most common cause for the 77960-TG7-A210-M2, even if no airbag was triggered. A standard diagnostic tool cannot erase them. Other possible causes are ageing components, cold solder joints, moisture at plug connections and voltage spikes.

The crash data stay in memory until the repair removes them. Until then they cannot be removed with a standard diagnostic tool.

The other causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example when the battery is weak or jump-starting was necessary.

How can you tell that the 77960-TG7-A210-M2 is defective?

A defect in the 77960-TG7-A210-M2 becomes visible through the airbag warning light in the instrument cluster, which stays on permanently or lights up intermittently. In addition, a fault message in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be cleared may occur. In this case airbags and seatbelt pretensioners may not be able to deploy in an emergency.

The light is the warning signal you should watch first.

If you notice one of these signs, have the fault memory read out promptly. Only then do you know whether the control unit itself is affected.

Which vehicles is the 77960-TG7-A210-M2 fitted in?

The 77960-TG7-A210-M2 is fitted in these vehicles: Honda Pilot 3rd generation (2015-2018) and 3rd generation Facelift (2018-2022). The information comes from our assignment of this part number.

These are the vehicles known to us for this part number:

• Honda Pilot 3rd generation (2015-2018)
• Honda Pilot 3rd generation Facelift (2018-2022)

Compare the part number on the label of the removed unit with this page first, so that you have the correct unit in front of you. Have the fault memory read out beforehand, because only the log 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-TG7-A110M2, 77960-TG7-R020-M2, 77960-TG7-R110-M2, 77960-TG7-R210-M2, 77960-TG7-X110-M2, 77960-TG7-X210-M2.

How does the repair of the 77960-TG7-A210-M2 work?

You first have the fault memory read out and enclose the log. Then you disconnect the battery and remove the control unit 77960-TG7-A210-M2. Only afterwards do you create a repair order online and send in the well-packed unit.

Airbag24 then checks the unit on the test bench, replaces defective components and erases stored crash data. A function test follows, and finally your own unit is returned. Processing at Airbag24 usually takes 3–4 working days.

These steps must be carried out in exactly this order for safety reasons. 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-TG7-A210-M2 get to Airbag24?

You send the control unit 77960-TG7-A210-M2 as a parcel or book a UPS collection for an extra charge. Airbag24 sends it back to you by UPS after the repair.

Place the printed repair order in the parcel and pack the unit shockproof.