Airbag control unit with part number 1K0909605N

What does the airbag control unit 1K0909605N do?

The airbag control unit 1K0909605N is the central control unit of the restraint system (SRS) of Skoda. It evaluates the signals from the crash sensors, decides in an emergency within milliseconds on airbags and seatbelt pretensioners and monitors the system continuously.

It reports faults via the airbag warning light. After an accident it writes crash data and locks itself.

Monitoring runs without interruption, even when everything seems normal in everyday driving.

Why does the control unit 1K0909605N fail?

Stored crash data is the most common cause, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Other causes are aged electronics, cold solder joints, moisture at plug connections and voltage spikes.

Crash data records the accident and remains in memory, even if no damage is visible from outside. This then shows when the fault memory is read out.

The other causes can only be narrowed down reliably on the removed unit. Airbag24 erases the crash data during the repair.

How can you tell that the 1K0909605N is defective?

A defect shows up on the airbag warning light and on other warning signals in the vehicle. In that case the airbags and seatbelt pretensioners may not be able to trigger in an emergency.

• The airbag warning light in the instrument cluster lights up permanently or intermittently.
• An error message appears in the instrument cluster.
• The diagnostic tool cannot connect to the control unit.
• The fault memory cannot be cleared.

Anyone who notices one of these signs has the fault memory read out promptly.

Which vehicles is the 1K0909605N fitted in?

The control unit 1K0909605N is fitted in these vehicles: Skoda Octavia 2 [1Z] (2004-2012) and 2 [1Z] Facelift (2009-2013).

The overview names the models to which this part number is assigned.

• 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, so that you know for certain it is the right unit. Have the fault memory read out beforehand, because only this log shows whether the control unit is defective or a plug or 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 1K0909605N work?

First have the fault memory read out and attach the log, then disconnect the battery and only then remove the control unit. Then create a repair order online and send the unit well packed. At Airbag24, processing usually takes 3–4 working days.

Airbag24 tests the unit on the test bench, repairs damage to defective components, erases the stored crash data and carries out a function test. Afterwards your own unit is returned to you.

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 1K0909605N get to Airbag24?

You send the control unit 1K0909605N in as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Put the printed repair order into the parcel and pack the control unit shock-proof, so that it survives transport.