Airbag control unit with part number 8200117654

What does the airbag control unit 8200117654 do?

The airbag control unit 8200117654 is the central control unit of the SRS in the Renault. It evaluates the signals from the crash sensors, decides within milliseconds in an accident whether to trigger airbags and seatbelt pretensioners, and monitors the system continuously. After a crash, it stores crash data and locks itself.

The sensors deliver their measurements to the unit, which constantly evaluates them. If it detects a fault, it stores it and reports it via the airbag warning light.

The control unit works in the background, without the driver needing to intervene.

Why does the control unit 8200117654 fail?

Stored crash data are the most common cause on the 8200117654, even if no airbag was triggered in the accident. A standard diagnostic tool cannot delete them. Ageing components, cold solder joints, moisture at plug connections and voltage spikes are also possible.

The crash data remain in the memory until they are deliberately removed. The unit can therefore still report irregularities even when the vehicle seems to drive normally after the accident.

The other causes concern the electronics in general. Components age, solder joints can go cold, and moisture or corrosion disturb the contacts. Voltage spikes, for example from a weak battery or a jump-start, also stress the electronics.

How can you tell that the 8200117654 is defective?

The airbag warning light in the instrument cluster lights up on the 8200117654 permanently or intermittently. A fault message, a diagnostic tool without connection to the control unit and a fault memory that cannot be cleared also indicate a defect.

The warning light is the clearest sign, because it shows the detected fault directly. If the warning light comes on, have the system checked.

In an emergency, airbags and seatbelt pretensioners may possibly not deploy in the event of a defect. Therefore have the system checked promptly.

Which vehicles is the 8200117654 fitted in?

The control unit 8200117654 is fitted in these vehicles: Renault Scénic I (1996-2003); Renault Mégane I (1995-2003).

The known vehicles for this part number are listed below.

• Renault Scénic I (1996-2003)
• Renault Mégane I (1995-2003)

Two separate pieces of advice help you. Compare the part number on the label of the removed unit with this page, so you can be sure you have the correct unit in front of you. Also have the fault memory read out beforehand, because only the result shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 600639500, 7700415232, 7700430059, 7700437477B, 8200117651, 8200117651A.

How does the repair of the 8200117654 work?

Processing at Airbag24 usually takes 3–4 working days. First have the fault memory read out and attach the log. Then disconnect the battery and remove the control unit 8200117654.

Then create a repair order online and send the unit in, well packed. Airbag24 tests it on the test bench, repairs defects in components, deletes stored crash data and carries out a functional test. 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 8200117654 get to Airbag24?

You send the unit 8200117654 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

Put the printed repair order in the parcel and pack the unit shockproof. Careful packaging protects it during transport.