Airbag control unit with part number 13505822

What does the airbag control unit 13505822 do?

The airbag control unit 13505822 forms the switching centre of the restraint system (SRS) in Chevrolet. It checks the signals of the crash sensors, decides in fractions of a second in an accident which airbags and seatbelt pretensioners trigger, and monitors the system continuously. After an accident, it stores crash data and locks itself.

If the system reports a fault, the airbag warning light in the instrument cluster indicates it.

The evaluation runs in the background, so you notice nothing of it in everyday life.

Why does the control unit 13505822 fail?

Most often, the cause lies in crash data stored after an accident, even if no airbag was triggered. An ordinary diagnostic tool does not remove it. Aged components, cold solder joints, moisture and corrosion, as well as voltage spikes, also play a role.

Crash data arises even when an accident has no consequences for the airbags. The control unit then keeps it in memory, even though no seatbelt pretensioner was triggered.

Aged electronic components and cold solder joints cause contact faults that come and go. Moisture and corrosion at plug connections increase the transition resistance, and voltage spikes, for example from a weak battery or jump start, stress the electronics.

How can you tell that the 13505822 is defective?

Several signs point to a defect. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

• Airbag warning light in the instrument cluster lights up permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool cannot establish a connection to the control unit
• Fault memory cannot be cleared

A warning light that comes on only intermittently is no reason to relax. Reading out the fault memory is worthwhile even then.

Which vehicles is the 13505822 fitted in?

The control unit 13505822 is fitted in these vehicles: Chevrolet Cruze J300 (2008-2012) and J300 Facelift (2012-2016).

The list shows the vehicles we know for this part number.

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

Compare the part number on the label of the removed unit with this page; then you have the correct unit in front of you. The cause, however, is only clarified by the fault memory: have it read out before removal, because only then does it show whether the control unit is defective or a plug or cable is the cause.

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

How does the repair of the 13505822 work?

First have the fault memory read out and attach the log to the unit, then disconnect the battery before you remove the control unit. Then create a repair order online and send in the well-packed unit.

At Airbag24 the unit is checked on the test bench, defective components are replaced, stored crash data is erased and a function test is run. This processing usually takes 3–4 working days.

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 13505822 get to Airbag24?

You send the unit to Airbag24 as a parcel or book a UPS collection for an extra charge. After the repair, UPS brings the unit back to you.

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