Airbag control unit with part number 5QS959655P

What does the airbag control unit 5QS959655P do?

The airbag control unit 5QS959655P is the central control unit of the restraint system (SRS) for Volkswagen. It evaluates the signals from the crash sensors, decides within milliseconds in an accident which airbags and seatbelt pretensioners trigger, and monitors the system continuously. After an accident, it stores crash data and locks itself.

Monitoring runs without interruption. If the control unit detects a fault, it indicates it via the airbag warning light in the instrument cluster.

Why does the control unit 5QS959655P fail?

The stored crash data that remain in the unit after an accident are the most common cause with 5QS959655P, even if no airbag has triggered; other possible causes include ageing, moisture and voltage spikes. With this control unit, deleting the crash data is often not possible; if you want them deleted, get in touch with Airbag24 briefly before sending the unit in.

A normal diagnostic tool cannot delete these crash data.

Other causes include aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes, for example from a weak battery or a jump start.

Which cause applies is only revealed by examining the control unit.

How can you tell that the 5QS959655P is defective?

A defect in the 5QS959655P shows up as an airbag warning light in the instrument cluster that stays on permanently or intermittently. A fault message in the instrument cluster or a fault memory that cannot be cleared also indicates this.

Watch out for these signs:

• Airbag warning light stays on permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool finds no connection to the control unit
• Fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may possibly not deploy. Have the fault checked promptly.

Which vehicles is the 5QS959655P fitted in?

The airbag control unit 5QS959655P is fitted in these vehicles: Volkswagen Multivan T7 (from 2021); Volkswagen Crafter SZ (from 2017). To check whether the unit suits your vehicle, use the part number on the removed unit.

These vehicles are on record for this control unit:

• Volkswagen Multivan T7 (from 2021)
• Volkswagen Crafter SZ (from 2017)

Compare the part number on the label of the removed unit with this page. This only confirms that you have the correct unit. Have the fault memory read out beforehand. Only the result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 5QS 959 655 D, A9064461442.

How does the repair of the 5QS959655P work?

First, read out the fault memory, then disconnect the battery and only then remove the control unit. Afterwards, create a repair order online and send in the well-packed unit.

For safety reasons, this order is mandatory: the control unit is only removed once the battery has been disconnected. If you want the crash data deleted, get in touch with Airbag24 briefly before sending the unit in.

Airbag24 checks the unit on the test bench, replaces defective components and runs a functional test. Processing at Airbag24 usually takes 3–4 working days. Afterwards, your own, repaired 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 5QS959655P get to Airbag24?

You send the control unit 5QS959655P as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

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