Airbag control unit with part number 8200112746

What does the airbag control unit 8200112746 do?

The airbag control unit 8200112746 forms the centre of the restraint system (SRS) in Renault. From the signals of the crash sensors, it works out within milliseconds which airbags and seatbelt pretensioners will trigger in an accident, and it monitors the system continuously. It indicates faults via the airbag warning light.

The sensor data is processed inside the unit, and the driver notices none of it. That is exactly why the warning light is an important indicator of faults.

After an accident, the unit stores crash data and locks itself. The repair lifts this lock.

Why does the control unit 8200112746 fail?

Stored crash data from an accident is the most common cause of failure with 8200112746, even if no airbag has deployed. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes caused by a weak battery or a jump start.

Crash data cannot be removed with a normal diagnostic tool. It stays in the unit until the control unit is repaired at Airbag24.

The other causes concern components and connections inside the unit. Aged electronics and solder joints can produce faults, and moisture or corrosion disturbs the contact at the plugs. Voltage spikes add further strain to the electronics.

How can you tell that the 8200112746 is defective?

When the 8200112746 is defective, the airbag warning light in the instrument cluster lights up permanently or intermittently. In addition, an error message appears in the instrument cluster, there is no connection to the diagnostic tool, and the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may therefore fail to trigger, which underlines the importance of the warning light.

The indication comes directly from the control unit itself and calls for a check with the fault memory.

Which vehicles is the 8200112746 fitted in?

A look at the vehicle list shows whether your car matches. The airbag control unit 8200112746 is fitted in these vehicles: Renault Trafic II (2001-2014).

The list shows these vehicles:

• Renault Trafic II (2001-2014)

Compare the part number on the label of the removed unit with this page, so that you can identify the correct unit. Have the fault memory read out beforehand, because only that result shows whether the control unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 608361600E, 7701071459, 8200177654, 8200402592, 8200435339, 8200676895E.

How does the repair of the 8200112746 work?

First have the fault memory read out for the control unit 8200112746 and attach the log. Then disconnect the battery and only then remove the unit. Next, create a repair order online and send in the carefully packed unit.

At Airbag24, the unit goes onto the test bench, defective components are replaced, stored crash data is erased, and a function test completes the work. Inspection, repair and testing usually take 3–4 working days, after which 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 8200112746 get to Airbag24?

The control unit 8200112746 reaches Airbag24 as a package you send, or via a UPS collection booked for an extra charge. After the repair, it is returned by UPS.

Enclose the printed repair order and pack the unit shockproof.