Airbag control unit with part number 13584903

What does the airbag control unit 13584903 do?

The airbag control unit 13584903 acts as the evaluation centre of the SRS in Chevrolet. It reads out the crash sensors, determines within milliseconds in a crash which airbags and seatbelt pretensioners fire, and reports faults via the airbag warning light.

This process happens without any action from the driver; the unit works constantly in the background.

If the vehicle has been in an accident, the unit stores crash data and locks itself. The repair is the only procedure that lifts this lock.

Why does the control unit 13584903 fail?

The most common cause with the 13584903 is crash data from an accident, even if no airbag has fired. A standard diagnostic tool does not erase it. Other causes lie in the unit itself or in its connections.

Further possible causes include:

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

Which cause is actually present is only determined by the test.

How can you tell that the 13584903 is defective?

A fault in the 13584903 shows up as the airbag warning light, which stays on permanently or intermittently, and as an error message in the instrument cluster. Problems when reading out the unit are just as clear a sign.

You will notice these signs:

• the warning light is sometimes continuously lit, sometimes only intermittently
• there is an error message in the instrument cluster
• the diagnostic tool cannot establish a connection to the control unit
• the fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may not deploy. You should therefore have this warning signal checked quickly.

Which vehicles is the 13584903 fitted in?

The control unit 13584903 is fitted in these vehicles: Chevrolet Cruze J300 (2008-2012) and J300 Facelift (2012-2016). The part number decides, not the model name on the tailgate.

The following assignment lists the vehicles:

• Chevrolet Cruze J300 (2008-2012)
• Chevrolet Cruze J300 Facelift (2012-2016)

Clarify both points first. Use the label on the removed unit to check whether it matches this page; that only confirms the identity of the unit. The fault memory, on the other hand, shows whether the control unit is defective or whether a plug or cable is the cause, and you should have it read out in advance.

For the same vehicles, we also repair control units with the part numbers 13505823, 13580450, 13585613, 13589374, 22483423.

How does the repair of the 13584903 work?

The process starts with reading out the fault memory, whose log you enclose. Next the battery is disconnected, and only then is the control unit 13584903 removed. Finally you create the repair order online and pack the unit well for shipping.

Processing time at Airbag24 is usually 3–4 working days.

Airbag24 tests the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. 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 13584903 get to Airbag24?

The unit reaches Airbag24 either by parcel or via UPS collection for an extra charge. After the repair, the control unit 13584903 is returned by UPS.

Enclose the printed repair order with the unit in the parcel and make sure the packaging is shockproof.