Airbag control unit with part number 8200769221

What does the airbag control unit 8200769221 do?

The airbag control unit 8200769221 makes the decisions in the restraint system (SRS) of Dacia. In a crash it processes the sensor data and determines within milliseconds which airbags and seatbelt pretensioners are triggered.

It also monitors the entire system continuously. If it detects a fault, it reports it via the airbag warning light.

A crash results in the unit storing crash data and locking itself afterwards.

Why does the control unit 8200769221 fail?

Stored crash data from an accident is the most common cause on the 8200769221, even if no airbag fired. A conventional diagnostic tool cannot erase it. Ageing, cold solder joints, moisture and voltage spikes are also possible.

Crash data remains in memory until it is erased. Airbag24 takes over this erasing during the repair, and the unit is checked afterwards.

The other causes concern the electronics themselves or their power supply. Aged components, cold solder joints and corrosion on plug connectors are among them, as are voltage spikes, for example from a jump start.

How can you tell that the 8200769221 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, and a fault message appears in the instrument cluster. In addition there are connection problems with the diagnostic tool and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not fire.

Typical signs in detail:

• warning light permanently on
• warning light on only intermittently
• fault message in the instrument cluster
• no connection between diagnostic tool and control unit
• fault memory cannot be cleared

The light therefore shows the condition.

Which vehicles is the 8200769221 fitted in?

The control unit 8200769221 is fitted in these vehicles: Dacia Logan I (2004-2008) and I Facelift (2008-2013); Dacia Logan MCV I Facelift (2009-2013) and I (2006-2009). This assignment is known for the following models.

The assignment in detail:

• Dacia Logan I (2004-2008)
• Dacia Logan I Facelift (2008-2013)
• Dacia Logan MCV I Facelift (2009-2013)
• Dacia Logan MCV I (2006-2009)

A comparison of the part number on the label of the removed unit with this page only tells you about the identity of the unit. Whether the control unit is defective, or whether a plug or a cable is the cause, is shown only by reading out the fault memory, which therefore has to be done before removal.

For the same vehicles, we also repair control units with the part numbers 6001551009, 8200307188, 8200702320, 8200702322, 8200769222, 8200946126.

How does the repair of the 8200769221 work?

First have the fault memory of the 8200769221 read out and enclose the log. Then disconnect the battery and only afterwards remove the control unit. Finally create a repair order online and send in the well-packed unit.

Airbag24 checks the unit on the test bench and replaces defective components. Airbag24 also erases the stored crash data and runs a functional test.

At Airbag24 processing usually takes 3–4 working days. This period 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 8200769221 get to Airbag24?

One option is to send a parcel to Airbag24, the other is a UPS collection for an extra charge. After the repair Airbag24 sends the 8200769221 back by UPS.

Packed shock-proof, with the printed repair order in the parcel, the unit goes on its way.