Airbag control unit with part number 15299717

What does the airbag control unit 15299717 do?

The airbag control unit 15299717 controls the restraint system (SRS) of Chevrolet. It processes the signals from the crash sensors and decides in an impact, within milliseconds, which airbags and seatbelt pretensioners are triggered. It also monitors all components continuously and reports faults via the airbag warning light.

The sensors continuously report measurements to the unit, and the unit evaluates them. In normal operation it stays inconspicuous, so you hardly notice anything in everyday driving.

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

Why does the control unit 15299717 fail?

Stored crash data from an earlier accident is the most common cause for 15299717, even if no airbag has deployed. Normal diagnostic tools cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes from a weak battery or jump-starting.

The crash data remains in the memory, and Airbag24 removes it during the repair. The presence of the data does not automatically mean that other causes have been ruled out.

The other causes concern the electronics and their connections. If a solder joint is cold or a plug contact has become damp, the connection can be disturbed, and voltage spikes place additional strain on the components.

How can you tell that the 15299717 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently when control unit 15299717 is defective. In addition, an error message appears, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may therefore fail to deploy, which is why you should take the warning seriously.

The light reports the fault but does not name the cause. Reading out the fault memory is needed for that.

Which vehicles is the 15299717 fitted in?

It is worth looking at the vehicle list before you send anything in. The airbag control unit 15299717 is fitted in these vehicles: Chevrolet Cobalt 1st generation (2004-2010).

The vehicles in which this control unit has been installed are listed here:

• Chevrolet Cobalt 1st generation (2004-2010)

First compare the part number on the label of the removed unit with this page, so you know it is the right unit. Also have the fault memory read out, because only the result shows whether the control unit 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 15299717 work?

For 15299717, first have the fault memory read out and attach the log. Then disconnect the battery, and only then remove the control unit. Afterwards create a repair order online and pack the unit well before sending it in.

Airbag24 checks the control unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. The work at Airbag24, meaning checking, repairing and testing, takes 3–4 working days as a rule.

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 15299717 get to Airbag24?

Control unit 15299717 reaches Airbag24 as a parcel that you send yourself, or via a UPS collection that you book for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Put the printed repair order in the parcel and pack the unit shock-proof.