Airbag control unit with part number 8200682393

What does the airbag control unit 8200682393 do?

The airbag control unit 8200682393 is the central control unit of the restraint system (SRS) at Renault. It processes the signals from the crash sensors, decides in an accident within milliseconds whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously. After an accident it stores crash data and locks itself.

The control unit continuously evaluates the sensors and logs anomalies.

If it detects a fault, it indicates this via the airbag warning light in the instrument cluster.

Why does the control unit 8200682393 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed, and a normal diagnostic tool cannot delete it. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

Crash data remains in the memory even if the vehicle continues to be driven normally after the accident.

Electronics age, and solder joints on the circuit board can become cold. Moisture and corrosion disturb the contacts at plug connectors.

Voltage spikes from the vehicle electrical system are also possible, for example with a weak battery or a jump start.

How can you tell that the 8200682393 is defective?

A defect shows itself through the airbag warning light in the instrument cluster, through error messages in the instrument cluster, and through a diagnostic tool with no connection to the control unit. If the fault memory cannot be cleared, that also confirms a problem. Airbags and seatbelt pretensioners may then possibly not trigger in an emergency.

Typical signs are:

• airbag warning light on permanently or intermittently
• error message in the instrument cluster
• diagnostic tool does not find the control unit
• fault memory cannot be cleared

Each of these signs justifies a prompt check of the restraint system.

Which vehicles is the 8200682393 fitted in?

The control unit 8200682393 is fitted in these vehicles: Renault Mégane II (2002-2009). The part number is decisive for the assignment.

The vehicles for this part number are listed here:

• Renault Mégane II (2002-2009)

Compare the part number on the label of the removed unit with this page. This only ensures that it is the right unit. Have the fault memory read out as well, because only that 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 8200257044E, 8200337245, 8200337247, 8200412026, 8200412026B, 8200682381.

How does the repair of the 8200682393 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only afterwards remove the control unit, then create a repair order online and send the well-packed unit. Testing, repair and function test at Airbag24 take 3–4 working days as a rule.

On the test bench the unit is inspected, defective components are repaired, stored crash data is deleted and a function test is carried out. 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 8200682393 get to Airbag24?

Shipping is by parcel, or by a UPS collection that you book for an extra charge. After the repair Airbag24 returns the unit by UPS.

A printed repair order is enclosed in the parcel, and the unit is packed shock-resistant.