Airbag control unit with part number 13589833

What does the airbag control unit 13589833 do?

The airbag control unit 13589833 is the central control unit of the restraint system (SRS) of Chevrolet. It evaluates the signals from the crash sensors, decides in the event of an accident which airbags and seatbelt pretensioners are triggered, and locks itself after an accident once it has stored crash data.

The decision on triggering must be made within milliseconds, because airbags and seatbelt pretensioners are only effective if they are ready at the moment of the accident. To this end, the control unit checks its connections to sensors and actuators, as well as its own function, during operation, even when the vehicle is stationary.

If it detects a fault, it stores it in the fault memory and switches on the airbag warning light in the instrument cluster. The fault memory is therefore the first point of reference when the system becomes conspicuous, and the log helps with any further investigation.

Why does the control unit 13589833 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot delete it. Other possible causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

The unit itself creates crash data and retains it until it is deliberately removed. Airbag24 deletes it during the repair, so that the finding can then be assessed without this entry.

The other causes in overview:

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

Which of these causes is actually present only becomes clear during the examination on the test bench.

How can you tell that the 13589833 is defective?

A defect in the 13589833 is shown by the airbag warning light in the instrument cluster when it is on permanently or intermittently. Fault messages in the instrument cluster, a lack of connection from the diagnostic tool to the control unit, and a fault memory that cannot be cleared are also signs.

The typical signs at a glance:

• Airbag warning light in the instrument cluster, permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool has no connection to the control unit
• Fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may then possibly not trigger. The light is therefore a warning signal and deserves prompt investigation.

Which vehicles is the 13589833 fitted in?

The control unit 13589833 is fitted in these vehicles: Chevrolet Aveo 2nd generation (2011-2020); Chevrolet Sonic 2nd generation (2011-2020).

The list below names the vehicles to which this part number is assigned.

• Chevrolet Aveo 2nd generation (2011-2020)
• Chevrolet Sonic 2nd generation (2011-2020)

Compare the part number on the label of the removed unit with this page. This only ensures that it is the right unit. Also have the fault memory read out in advance, because only the 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 13534753, 13589836, 285010232, 5WY67032-95160, 5WY67133-95160, 96806848.

How does the repair of the 13589833 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, and only then remove the control unit; afterwards create a repair order online and send in the well-packed unit. Airbag24 generally needs 3–4 working days to process the unit.

At Airbag24, the unit is examined on the test bench. Defective components are replaced, stored crash data is deleted, and a function test is carried out. The unit then returns 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 13589833 get to Airbag24?

You send the control unit 13589833 in as a parcel or book a UPS collection for an extra charge. Airbag24 returns it by UPS after the repair. Put the printed repair order into the parcel and pack the unit shockproof.

A sturdy box with enough padding material protects the unit from knocks.