Airbag control unit with part number 56D959655C

What does the airbag control unit 56D959655C do?

At Seat, the airbag control unit 56D959655C controls the airbags and seatbelt pretensioners. It evaluates the crash sensors and decides in an accident within milliseconds on triggering.

The unit monitors the entire restraint system continuously. It indicates detected faults via the airbag warning light.

After an accident, it stores crash data and locks itself.

Why does the control unit 56D959655C fail?

Stored crash data from an accident is the most common cause, even if no airbag was triggered. Aged components, cold solder joints, moisture or corrosion at plug connections and voltage spikes are also possible causes.

A normal diagnostic tool cannot delete this data. Airbag24 deletes it during the repair.

Voltage spikes can occur, for example, with a weak battery or during jump-starting. Which cause applies to your unit is established by the inspection on the test bench.

How can you tell that the 56D959655C is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. Accompanying this may be an error message in the instrument cluster, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared.

The light shows the state of the restraint system, which is why a prompt check is worthwhile. In the event of a defect, airbags and seatbelt pretensioners may not trigger in an emergency.

Only reading out the fault memory reveals which fault is present.

Which vehicles is the 56D959655C fitted in?

The control unit 56D959655C is fitted in these vehicles: Seat Ibiza 4 [6J] Facelift (2012-2015), 4 [6J] (2008-2012) and 4 [6P] (2015-2017).

The list follows:

• Seat Ibiza 4 [6J] Facelift (2012-2015)
• Seat Ibiza 4 [6J] (2008-2012)
• Seat Ibiza 4 [6P] (2015-2017)

Comparing the part number on the label of the removed unit with this page only confirms that you have 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 6C0 959 655 J, 6C0959655L, 6R0 959 655 K, 6R0959655C.

How does the repair of the 56D959655C work?

First have the fault memory read out and attach the log, then disconnect the battery and remove the control unit. Afterwards create a repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24 the unit is first checked on the test bench, defective components are repaired, the crash data is deleted and a function test is carried out. Afterwards your own unit is returned to you. This time covers only the checking, repairing and testing.

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 56D959655C get to Airbag24?

You send the control unit 56D959655C as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof.