Airbag control unit with part number 22905910

What does the airbag control unit 22905910 do?

The airbag control unit 22905910 is the central control unit of the SRS restraint system of Chevrolet. It evaluates the signals from the crash sensors, decides in a crash within milliseconds which airbags and seatbelt pretensioners are triggered, and monitors the system constantly.

The unit reports detected faults via the airbag warning light in the instrument cluster. The monitoring runs in the background while the vehicle is on the road and goes unnoticed.

After an accident, the control unit stores crash data and then locks itself. The consequences of this are described in the section on the cause of the fault.

Why does the control unit 22905910 fail?

Most often this is due to crash data stored after an accident, even if no airbag has deployed. A normal diagnostic tool cannot erase this data. Other causes are:

• aged electronic components in the unit
• cold solder joints on the circuit board
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump start

The crash data remains stored in the unit, even if no visible damage can be seen on the outside of the vehicle. That is why the fault search should begin with this memory before any components are replaced. The other points concern the electronics and their connections.

How can you tell that the 22905910 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and an error message appears in the instrument cluster. In addition, the diagnostic tool gets no connection to the control unit, and the fault memory cannot be cleared.

The warning light shows the defect without a test having to be awaited first. In an emergency, the airbags and seatbelt pretensioners may therefore fail to deploy. Have the system checked as soon as the light stays on permanently.

Which vehicles is the 22905910 fitted in?

The control unit 22905910 is fitted in these vehicles: Chevrolet Malibu 4th generation (2007-2012).

The details come from our data for this part number. You will find the vehicles listed here:

• Chevrolet Malibu 4th generation (2007-2012)

First compare the part number on the label of the removed unit with this page. This only shows you that it is the right unit. Then have the fault memory read out. Only this log 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 22632245, 22632248.

How does the repair of the 22905910 work?

First read out the fault memory and enclose the log with the unit. Then disconnect the battery and only then remove the control unit. In the next step, create a repair order online and send in the well-packed unit.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. Processing usually takes 3–4 working days. Your own unit is then 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 22905910 get to Airbag24?

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

Put the printed repair order into the parcel and pack the unit shockproof. That way it arrives undamaged.