Airbag control unit with part number 1K0909605L

What does the airbag control unit 1K0909605L do?

The airbag control unit 1K0909605L manages the restraint system (SRS) in Skoda. It processes the signals from the crash sensors and, in the event of a crash, triggers the appropriate airbags and seatbelt pretensioners within milliseconds.

At the same time, it monitors the entire system. If it detects a fault, it indicates this via the airbag warning light. If it has registered an accident, it stores crash data and locks itself.

Why does the control unit 1K0909605L fail?

Stored crash data is the most common cause, even if no airbag was triggered in the accident. Aging electronics, cold solder joints, moisture or corrosion at plug connectors and voltage spikes can also cause the failure.

Crash data cannot be erased with a standard diagnostic tool. Airbag24 deletes it as part of the repair.

Voltage spikes occur, for example, with a weak battery or with jump-starting that is not carried out properly. The electronics cannot cope well with such loads over the long term.

How can you tell that the 1K0909605L is defective?

The airbag warning light in the instrument cluster stays on permanently or flickers from time to time. A fault message also 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 the airbags and seatbelt pretensioners may possibly not trigger in an emergency.

The warning light is the first sign to watch for. If it stays on permanently, have the system checked promptly.

Which vehicles is the 1K0909605L fitted in?

The 1K0909605L is fitted in these vehicles: Skoda Octavia 2 [1Z] (2004-2012) and 2 [1Z] Facelift (2009-2013).

These models are listed in the following list.

• Skoda Octavia 2 [1Z] (2004-2012)
• Skoda Octavia 2 [1Z] Facelift (2009-2013)

Compare the part number on the label of the removed unit with this page. This only confirms that you have the right unit. Have the fault memory read out before removal, because only this log shows whether the control unit itself is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 1K0 909 605 T, 1K0909605AA, 1K0909605M, 1K0909605R, 1K0909605S.

How does the repair of the 1K0909605L work?

You have the fault memory read out and attach the log to the unit. Then you disconnect the battery and remove the control unit before creating the repair order online and sending in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Afterwards, the work at Airbag24 follows: the unit is checked on the test bench, defective components are replaced, stored crash data is deleted and a function test is carried out. You then receive your own 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 1K0909605L get to Airbag24?

You either send the unit to Airbag24 as a package, or you can book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

The printed repair order goes into the package. Pack the control unit shockproof so that it arrives undamaged.