Airbag control unit with part number 25783914

What does the airbag control unit 25783914 do?

The airbag control unit 25783914 is the control unit of the restraint system (SRS) for Chevrolet. It evaluates the signals from the crash sensors, decides in an accident which airbags and seatbelt pretensioners trigger, and checks the system continuously. After an accident, it stores crash data and locks itself.

The unit evaluates the crash sensors as soon as an event occurs and distributes the commands to the airbags and seatbelt pretensioners. At the same time, a self-monitoring routine runs and shows faults via the airbag warning light in the instrument cluster.

Why does the control unit 25783914 fail?

Stored crash data after an accident is the most common cause, even if no airbag has deployed, and a normal diagnostic tool cannot remove it. Aged electronic components, cold solder joints, moisture and corrosion in plug connections, and voltage spikes are also possible.

The data stays in the unit until the repair removes it. This also applies if the vehicle looks unremarkable from the outside.

Aged components, cold solder joints and corrosion in plug connections are typical weak points of such units. Voltage spikes, for example from a weak battery or jump-starting, can also cause the failure.

How can you tell that the 25783914 is defective?

A defect shows itself like this: the warning light in the instrument cluster lights up permanently or intermittently, a fault message appears, and the diagnostic tool loses contact with the control unit. If the fault memory also cannot be cleared, that is a further sign. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The airbag warning light is the display for exactly this case. It lights up or flickers as soon as the system notices something, and that tells you that a check is due.

Which vehicles is the 25783914 fitted in?

The airbag control unit 25783914 is fitted in these vehicles: Chevrolet Cobalt 1st generation (2004-2010). With the vehicle registration document in hand, the comparison is quick to make.

The vehicles for this part number are listed here:

• Chevrolet Cobalt 1st generation (2004-2010)

Comparing the part number on the label of the removed unit with this page only tells you that you have the right unit in front of you. Whether the control unit is defective, or whether a plug or cable is the cause, is shown only by the fault memory, which you should have read out before removal.

For the same vehicles, we also repair control units with the part numbers 15249432, 22729009, 22729011.

How does the repair of the 25783914 work?

First have the fault memory read out with the log, then disconnect the battery and remove the control unit. Next, create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, removes the stored crash data and tests the function. Afterwards the unit goes back 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 25783914 get to Airbag24?

For shipping, you can use a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

The printed repair order goes into the parcel, and the control unit must be packed shock-proof.