Airbag control unit with part number 1C0909601D

What does the airbag control unit 1C0909601D do?

The airbag control unit 1C0909601D forms the central control unit of the restraint system (SRS) in Skoda. It reads the signals from the crash sensors, makes the decision on airbags and seatbelt pretensioners within milliseconds in an accident, and logs the event. After an accident it stores crash data and locks itself.

The manufacturer's part number Continental 5WK44432 is additionally printed on the housing.

Monitoring runs continuously. If the system reports a deviation in the restraint system, the signal appears via the airbag warning light in the instrument cluster.

The decision on triggering follows fixed criteria. Which airbags or seatbelt pretensioners are activated depends on the direction and severity of the impact.

Why does the control unit 1C0909601D fail?

Stored crash data is the most common cause, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes also play a role.

Crash data is created by the impact itself. Its presence does not necessarily mean that an airbag has deployed, and an ordinary diagnostic tool cannot access the entries.

The other causes concern the electronics themselves and their connection. Components age over time, solder joints can become cold, and moisture or corrosion degrades the contact at plugs. Voltage spikes, for example from a weak battery or a jump start, put additional strain on the unit.

How can you tell that the 1C0909601D is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, a fault message appears in the instrument cluster, the diagnostic tool receives no connection to the control unit, and the fault memory cannot be cleared.

For the driver the light is the most important warning, because it reports a fault in the restraint system. A fault message in the instrument cluster has the same meaning and must be taken seriously.

If no connection to the diagnostic tool can be made, the state of the control unit cannot be queried. In an emergency, airbags and seatbelt pretensioners may then fail to trigger. Please have the finding clarified promptly.

Which vehicles is the 1C0909601D fitted in?

The airbag control unit 1C0909601D is fitted in these vehicles: Skoda Fabia 1 [6Y] Facelift (2004-2007) and 1 [6Y] (1999-2004).

These vehicles are listed in the following list.

• Skoda Fabia 1 [6Y] Facelift (2004-2007)
• Skoda Fabia 1 [6Y] (1999-2004)

The following steps help in advance. Comparing the part number on the label with this page only confirms that it is the right unit. Whether the control unit itself is defective or a plug or cable is causing the fault can only be shown by reading the fault memory beforehand.

For the same vehicles, we also repair control units with the part numbers 1C0 909 601, 1C0 909 601 A, 1C0 909 605 H, 1C0 909 605 K, 1C0909601C, 5WK43120.

How does the repair of the 1C0909601D work?

First have the fault memory read and attach the log. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the unit well packed.

At Airbag24 the unit is checked on the test bench, defective components are repaired, stored crash data is deleted, and a function test completes the work. Processing usually takes 3–4 working days. You then receive your own, repaired unit back.

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 1C0909601D get to Airbag24?

Either you send the unit yourself as a parcel, or you choose a UPS pickup for an extra charge. The return after repair is likewise made by UPS.

The repair order, which you print out online, goes into the parcel. The packaging must be shock-resistant.