Airbag control unit with part number 13502337

What does the airbag control unit 13502337 do?

The airbag control unit 13502337 is the central control unit of the restraint system (SRS) of Chevrolet. It evaluates the signals from the crash sensors, decides within milliseconds in an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously. It reports faults via the airbag warning light.

While driving, the unit continuously checks whether all connected components are working. A decision in an emergency is made so quickly that the driver cannot intervene.

After an accident the unit stores crash data and locks itself.

Why does the control unit 13502337 fail?

The most common cause is crash data stored after an accident, even if no airbag has been triggered; a normal diagnostic tool cannot erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump start.

Crash data is created after an accident and remains in the unit's memory even if the vehicle then drives normally again. That is why it is one of the first things a fault search turns up.

The other causes lie in the electronics themselves. Components age over time, solder joints can go cold, and moisture or corrosion disrupt contact at plug connections.

Voltage spikes can damage components if the battery is weakened or a jump start was needed.

How can you tell that the 13502337 is defective?

A defect shows up as the airbag warning light in the instrument cluster lighting up permanently or intermittently, and as an error message in the instrument cluster. A diagnostic tool that cannot connect to the control unit, and a fault memory that cannot be cleared, also indicate a fault.

The warning light shows the defect directly, and in an emergency the airbags and seatbelt pretensioners may not be able to trigger. Please have such signs checked promptly before you continue driving, because the system then no longer works fully.

Which vehicles is the 13502337 fitted in?

The control unit 13502337 is fitted in these vehicles: Chevrolet Cruze J300 (2008-2012) and J300 Facelift (2012-2016). Check whether your car is affected using the details in this section.

The following list gives an overview.

• 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. This only confirms that you have the right unit in front of you. Have the fault memory read out beforehand, because only the result shows 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 13502337 work?

First have the fault memory read out and attach the log, then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, deletes stored crash data and carries out a function test. The unit, now repaired, is then returned to you.

The order of these steps is for your safety: the control unit is only removed once the battery has been disconnected. 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 13502337 get to Airbag24?

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

Put the printed repair order into the parcel and pack the control unit so that it is shock-resistant.