F620 - Internal fault in the control unit airbag control unit fault
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Error “F620” isn't linked to every vehicle in our database – we can usually repair the airbag control unit anyway. Select your vehicle and we'll show you the matching repair:
What does error code F620 mean in the airbag control unit?
Error code F620 reports an internal fault in the airbag control unit at Citroën, which is not further specified, and the control unit stores it in the fault memory. The meaning therefore relates to the control unit itself and not to an individual connector or cable, and the airbag warning light comes on.
The airbag control unit controls the deployment of the airbags in the restraint system (SRS). An internal fault in the unit itself is therefore recorded in the fault memory as a separate finding.
How do you recognise error code F620?
Error code F620 shows itself when the airbag warning light stays on permanently and the code is stored in the fault memory. The code cannot be permanently cleared, because the internal fault in the control unit is still present. It is read out with a diagnostic tool that retrieves the fault memory.
As long as the fault is stored, the airbag warning light stays switched on. When the fault memory is read out, the diagnostic tool displays the entry, so the workshop can clearly identify the code.
What causes error code F620?
At Citroën, an internal fault in the control unit arises in the unit itself and not in a cable or a connector. Because the fault is not further specified, several causes are possible, all of which affect the control unit and lead to the entry.
- Crash data stored in the control unit after an accident
- Ageing electronic components in the control unit
- Faulty solder joints in the control unit
- Moisture or corrosion in the housing
- Voltage spikes caused by a weak battery or jump-starting
Connectors and cables are not the cause described for this code, because its meaning relates to the control unit.
In which vehicles does error code F620 occur?
Error code F620 is known for Citroën vehicles, namely the C3 Aircross III, C3 Picasso I, C4 Aircross I, C4 Cactus I, C5 Aircross II and ë-C3 IV models. The meaning of this code has not yet been recorded for other makes.
The meaning may differ for other vehicles, and the list is not complete. Only reading out the fault memory with a diagnostic tool shows whether a particular vehicle is affected.
How is error code F620 resolved?
Have the fault memory read out with a diagnostic tool first, before taking any further steps. Because the meaning points to the control unit itself, repairing the control unit is then the right course of action. To do this, create a repair order online, and the unit is then sent in for repair.
Disconnect the battery before removing the control unit. Only after that is the control unit removed.
Checking, repairing and testing usually take 3–4 working days. 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. Work on the airbag system should be left to qualified specialists.
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.
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What our customers say
„Ok.“
Zsolt Szabó3 days ago„Works like a charm!“
Leoly3 weeks ago„VAG airbag control unit with error B2000 00 reliably repaired. Price very high in comparison, but everything worked out. No exact protocol of what was carried out, probably just newly flashed“
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Tokeh Tokehyesterday„A great shop, even when there are sometimes problems. There are quick responses and very good help. I can only recommend the shop. Thank you very much“
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Sven Wegener3 days ago„Problem solved :-)“
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Fa D'A3 days ago„Everything went well“
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Mehdi Fattahi3 days ago„Everything works great“
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Wolfgang Katenz4 days ago„Ultra satisfied with this company. My computer was repaired quickly and works perfectly again! Communication is exemplary (emails, SMS...). Very serious company, thank you!“
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Sophie Hoguet4 days ago„Uncomplicated, fast, correct.“
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Karl-Josef Backes4 days ago„Airbag control unit sent: the handling of it was immediate and very serious. The returned control unit was fitted without any problem and works perfectly. Very satisfied!“
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Jean Philippe Amouroux5 days ago„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“
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Christian Maegerleinlast 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 f…“
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Gerd Goldammerlast week„Ok.“
Zsolt Szabó3 days ago
