Airbag control unit with part number 550568600

What does the airbag control unit 550568600 do?

The airbag control unit 550568600 is the central control unit of the restraint system (SRS) for the Renault. It evaluates the signals from the crash sensors, decides within milliseconds in a crash whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously. It shows faults via the airbag warning light.

After an accident it stores crash data and locks itself. Monitoring carries on unnoticed during this time.

Why does the control unit 550568600 fail?

The most common cause is crash data stored after an accident, even when no airbag has deployed. A normal diagnostic tool cannot erase it, and that is exactly what makes the fault persistent.

Other general causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump-starting.

Airbag24 erases the crash data during the repair. The other causes only become apparent during the test on the test bench.

How can you tell that the 550568600 is defective?

A defect shows up as the airbag warning light, which stays on permanently or intermittently, and as a fault message in the instrument cluster. The diagnostic tool cannot establish a connection to the control unit, and the fault memory cannot be cleared.

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

In such a case, airbags and seatbelt pretensioners may possibly fail to deploy in a crash. Please have the system checked promptly.

Which vehicles is the 550568600 fitted in?

The control unit 550568600 is fitted in these vehicles: Renault Espace III (1996-2002).

Below is the assignment we have for this part number.

• Renault Espace III (1996-2002)

Comparing the part number on the label of the removed unit with this page only confirms that it is the right unit. Please also have the fault memory read out beforehand, because only that 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 550346000, 6025308852F, 6025313596F, 6025371287.

How does the repair of the 550568600 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the unit in, well packed.

Airbag24 tests the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. Your own unit is then returned to you.

Processing at Airbag24 usually takes 3–4 working days. 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 550568600 get to Airbag24?

The control unit is sent to Airbag24 as a parcel, or you can book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

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