Airbag control unit with part number 1K0909605F

What does the airbag control unit 1K0909605F do?

The airbag control unit 1K0909605F controls the restraint system (SRS) of Volkswagen. It evaluates the signals from the crash sensors and decides in a crash which airbags and seatbelt pretensioners are triggered.

It monitors the entire system continuously. If it detects a fault, it indicates this via the airbag warning light in the instrument cluster.

After a crash, the unit stores crash data and locks itself. The further sections explain the consequences for a repair.

Why does the control unit 1K0909605F fail?

The most common cause is crash data stored after a crash, even if no airbag has triggered. Additionally, aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes come into consideration.

Crash data cannot be erased with a normal diagnostic tool. The other causes affect the electronics themselves and their connections; voltage spikes arise, for example, from a weak battery or a jump start.

How can you tell that the 1K0909605F is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and a fault message appears in the instrument cluster. In addition, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not trigger.

Typical signs at a glance:

• airbag warning light that lights up permanently or intermittently
• fault message in the instrument cluster
• no connection between diagnostic tool and control unit
• fault memory that cannot be cleared

The light indicates the defect. Have the fault memory read out as soon as it lights up.

Which vehicles is the 1K0909605F fitted in?

The control unit 1K0909605F is fitted in these vehicles: Volkswagen Golf 5 (1K).

The list of assigned vehicles follows:

• Volkswagen Golf 5 (1K)

Compare the part number on the label of the removed unit with this page. This only establishes that it is the right unit. Have the fault memory read out beforehand. Only this result shows whether the control unit 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, 1K0909605A, 1K0909605AB, 1K0909605H, 1K0909605P.

How does the repair of the 1K0909605F work?

Processing at Airbag24 usually takes 3–4 working days. There the unit is checked, defective components are replaced, stored crash data is erased and a function test is carried out.

First you carry out these steps: have the fault memory read out and enclose the readout log. Then disconnect the battery, only then remove the control unit, and create a repair order online.

This sequence serves safety. After processing, 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 1K0909605F get to Airbag24?

You send the control unit yourself, or for an extra charge you arrange a collection by UPS. The return after the repair is also made by UPS.

Place the printed repair order in the parcel and pack the unit shock-proof.