Airbag control unit with part number 20919413

What does the airbag control unit 20919413 do?

As the SRS control unit, 20919413 controls the restraint system of Chevrolet. It monitors the sensors and actuators, calculates the triggering of airbags and seatbelt pretensioners within milliseconds in an impact, and remains active during operation. After an accident it stores crash data and locks itself.

In everyday use the unit goes unnoticed, but as soon as a fault occurs in the system, it reports this via the airbag warning light in the instrument cluster.

Why does the control unit 20919413 fail?

Most often the cause is stored crash data, even if no airbag fired in the accident. Further causes are aged components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Crash data cannot be removed with a normal diagnostic tool; during the repair Airbag24 erases it.

Further causes at a glance:

• Aged components in the electronics
• Cold solder joints
• Moisture and corrosion on plug connections
• Voltage spikes from a weak battery or jump-starting

How can you tell that the 20919413 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently as soon as the system registers a fault. A fault message, a diagnostic tool without connection to the control unit, and a fault memory that cannot be cleared can also come on top of this. Then airbags and seatbelt pretensioners may fail to deploy in an emergency.

A fault message also appears in the instrument cluster. If the diagnostic tool gets no connection to the control unit, this too counts as a finding that must be checked.

Which vehicles is the 20919413 fitted in?

The 20919413 is fitted at Chevrolet in these vehicles: Chevrolet Cobalt 1st generation (2004-2010). Before removing anything, compare your vehicle with the list.

These vehicles are affected:

• Chevrolet Cobalt 1st generation (2004-2010)

Comparing the part number on the unit with this page only confirms that you have the correct control unit. Whether it is defective, or whether a plug or cable is the cause, is shown only by the fault memory read out beforehand.

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

How does the repair of the 20919413 work?

At Airbag24, testing, repairing and checking usually take 3–4 working days. Beforehand, have the fault memory read out and enclose the log; then disconnect the battery, remove the control unit, and create the repair order online before sending the unit in.

Airbag24 checks the unit on the test bench, replaces defective components, erases the stored crash data and carries out a function test.

You get your own, repaired unit back. 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 20919413 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. The return after the repair is handled by Airbag24 via UPS.

Make sure the printed repair order is in the parcel and the unit is packed shockproof.