Airbag control unit with part number 15289405

What does the airbag control unit 15289405 do?

The airbag control unit 15289405 is the central control unit of the restraint system (SRS) for Chevrolet. In an accident it evaluates the signals from the crash sensors and determines within milliseconds which airbags and seatbelt pretensioners are triggered.

During operation the unit monitors the complete system without interruption. If it detects a fault, it shows this via the airbag warning light in the instrument cluster.

After an accident the unit stores crash data and locks itself.

Why does the control unit 15289405 fail?

The most common cause on the 15289405 is crash data stored after an accident, even if no airbag was triggered. A standard diagnostic tool cannot delete this data. Other possibilities include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes such as from a weak battery or jump-starting.

Stored crash data stays in the unit until it is deleted. An airbag does not need to have triggered for this; an entry in the memory is enough.

The other causes concern the circuitry itself and its surroundings. Components age, solder joints can go cold, and moisture reaches contacts, so connections weaken.

How can you tell that the 15289405 is defective?

A defect on the 15289405 becomes apparent through the airbag warning light in the instrument cluster, which lights up constantly or intermittently, through a fault message in the instrument cluster, through a diagnostic tool without connection to the control unit, and through a fault memory that cannot be cleared.

The warning light is the most important indication, because it shows faults in the restraint system directly. As long as it is lit, airbags and seatbelt pretensioners may possibly fail to trigger in an emergency.

Because the vehicle runs on without restriction in everyday use, a check is worthwhile already at the first indication.

Which vehicles is the 15289405 fitted in?

The control unit 15289405 is fitted in these vehicles: Chevrolet Cobalt 1st generation (2004-2010). The assignment concerns exactly this control unit with this part number.

These vehicles are listed in it:

• Chevrolet Cobalt 1st generation (2004-2010)

On the one hand, compare the part number on the label of the removed unit with this page. That only shows that it is the right unit. On the other hand, have the fault memory read out before you remove the unit. Only this log 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 15249432, 22729009, 22729011.

How does the repair of the 15289405 work?

Have the fault memory read out first and enclose the log, then disconnect the battery and only then remove the control unit 15289405. Then create a repair order online and send the unit in well packed. Processing at Airbag24 generally takes 3–4 working days.

Airbag24 checks the unit on the test bench, repairs defective components, deletes stored crash data and carries out a function test. Afterwards your own 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 15289405 get to Airbag24?

You send the control unit 15289405 to Airbag24 as a parcel, or you 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 into the parcel and pack the unit shockproof before it goes on its way.