Airbag control unit with part number 77960-TWB-H220-M4
Control unit repairs for part number 77960-TWB-H220-M4 in our shop:
Your vehicle isn't listed?
Part number “77960-TWB-H220-M4” isn't linked to every vehicle in our database – we can usually repair it anyway. Select your vehicle and we'll show you the matching repair:
What does the airbag control unit 77960-TWB-H220-M4 do?
The airbag control unit 77960-TWB-H220-M4 is the central control unit of the restraint system (SRS) for Honda. It evaluates the crash sensors, determines in an accident which airbags and seatbelt pretensioners fire, and monitors the system continuously. After an accident it stores crash data and locks itself.
The control unit reports detected faults via the airbag warning light. This concerns the sensors, airbags and seatbelt pretensioners equally, because all of them are connected to the control unit.
In normal operation the control unit remains inconspicuous. It only becomes visible in case of a fault or after an accident.
Why does the control unit 77960-TWB-H220-M4 fail?
The most common cause is crash data stored after an accident, even if no airbag has deployed, and a normal diagnostic tool cannot erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.
The first point is the most common trigger for a fault of this type. The crash data stay stored until they are specifically removed.
The other causes do not always show at first glance. A voltage spike arises, for example, when the battery is weak or when jump-starting.
A plug connection with corrosion can produce messages that resemble those of a defective control unit. That is why only a test of the system clarifies which cause is present.
How can you tell that the 77960-TWB-H220-M4 is defective?
The airbag warning light lights up in the instrument cluster permanently or intermittently, an error message appears in the instrument cluster, and the diagnostic tool gets no connection to the control unit. In addition the fault memory cannot be cleared, and airbags and seatbelt pretensioners may fail to deploy in an emergency.
The airbag warning light indicates every fault, so do not ignore it. If it stays on permanently or comes on only intermittently, that is reason enough for a test.
The error message in the instrument cluster is the second indication. If the diagnostic tool also fails to connect, the cause may lie in the control unit or in the wiring between them.
Which vehicles is the 77960-TWB-H220-M4 fitted in?
The control unit 77960-TWB-H220-M4 is fitted in these vehicles: Honda Accord 10th generation (2017-2024).
The following list shows the vehicles that are stored at Airbag24 for this part number.
- Honda Accord 10th generation (2017-2024)
Two steps secure the assignment. Compare the part number on the label of the removed unit with this page to confirm it is the right unit. Having the fault memory read out beforehand 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-T3L-A012-M1, 77960-T3L-C012-M4, 77960-T3L-C020-M4, 77960-T3L-C030-M4, 77960-T3L-F012-M4, 77960-T3L-F020-M4.
How does the repair of the 77960-TWB-H220-M4 work?
On your side, first have the fault memory read out and attach the log, then disconnect the battery and remove the control unit. Then create a repair order online and pack the unit well before you send it in. Airbag24 needs 3–4 working days in total for testing, repair and function test.
At Airbag24 the unit is tested on the test bench, defective components are repaired and stored crash data are erased. A function test follows, and then your own unit goes back to you.
The sequence protects you when working on the vehicle, which is why removal only takes place after the battery is disconnected.
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-TWB-H220-M4 get to Airbag24?
You send the control unit as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 sends it back by UPS.
Put the printed repair order into the parcel and pack the unit shock-proof.
Shipping & repair from Germany
Airbag24 repairs your component in Berlin — usually within 3–4 working days.
Standard shipping within Germany is free; we normally return your part by UPS.
You pay for and insure the inbound shipment to us. On explicit request we ship by express — the extra cost is borne by the customer.
If you withdraw from the contract, you bear the cost of returning the item.
4.8
Based on 254 reviews
What our customers say
„Top!“
mirko leistnerlast week„Ok.“
Zsolt Szabó2 weeks ago„Works like a charm!“
Leolylast month„The website of Airbag24 Airbagsysteme is very well structured and simply explained. I sent my airbag control unit from my Renault Trafic there for repair. I am very satisfied with the telephone contact as well as by mail…“
Automatically translated · Original: German
H. S.2 days ago„Super great! Very fast repair of an airbag control unit of a Fiat Bravo 198. Sent it off on Monday, got it back already repaired by Friday and installed it. Everything works perfectly again. Old reliable car saved again…“
Automatically translated · Original: German
Stephan Plewinsky2 days ago„Well structured website with clear instructions, processing on schedule, punctual delivery. Worked immediately after reinstallation.“
Automatically translated · Original: German
Dieter Hirsch3 days ago„Apart from the price which remains a bit high, but compared to the only replacement solution and the service provided, it's PERFECT. Very good sending and return procedure, and customer contact SUPER, not to mention the…“
Automatically translated · Original: French
patrick taverna4 days ago„Very satisfied great work“
Automatically translated · Original: German
Florian Bickel4 days ago„Airbag control unit was defective..Sent it in and got it back faster than expected.Worked great.Great performance from the Airbag24 Team.Thanks and I will recommend you further.“
Automatically translated · Original: German
Dieter Winkler5 days ago„I can only recommend this company. My airbag control unit was repaired within a short time and sent back to me. Airbag system works perfectly again.“
Automatically translated · Original: German
Andreas Koennlast week„Everything went perfectly, I can only recommend it.“
Automatically translated · Original: German
ka irgendwaslast week„From the first phone call, the order processing, to the shipping everything was done very quickly and professionally. Now I still have to send the repaired unit to the Swedish workshop and then hopefully the Honda can fi…“
Automatically translated · Original: German
Gerd Goldammerlast week„Top!“
mirko leistnerlast week
