Airbag control unit with part number 13505637

What does the airbag control unit 13505637 do?

The 13505637 is the airbag control unit that coordinates the restraint system (SRS) in Chevrolet vehicles. In a crash it evaluates the signals from the crash sensors and determines within milliseconds which airbags and seatbelt pretensioners fire.

It also monitors the entire system continuously. A detected fault is shown by the airbag warning light in the instrument cluster.

After a crash the unit stores crash data and locks itself.

Why does the control unit 13505637 fail?

Stored crash data is the most common cause of failure, even when no airbag has deployed. Other possible causes are aged components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes, for example from a weak battery or jump-starting.

Crash data cannot be erased with a standard diagnostic tool. At Airbag24 it is erased as part of the repair.

Which of the other causes applies only becomes clear during testing on the test bench.

How can you tell that the 13505637 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently if the 13505637 is defective. Fault messages may also appear, the diagnostic tool may be unable to connect, and the fault memory cannot be cleared.

These signs mean that the airbags and seatbelt pretensioners may not deploy in an emergency. The light is therefore not a minor issue but a message from the control unit itself.

Please have the warning looked into promptly.

Which vehicles is the 13505637 fitted in?

The 13505637 is fitted in these vehicles: Chevrolet Cruze J300 (2008-2012) and J300 Facelift (2012-2016).

Here is the overview of the vehicles for this part number:

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

Comparing the part number on the label of the removed unit with this page only confirms that it is the correct unit. What counts is the fault memory: have it read out before you send the unit in, and it will show whether the control unit is defective or whether plugs or cables are 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 13505637 work?

First have the fault memory read out and attach the log. Then disconnect the battery, and only after that remove the control unit. Processing at Airbag24 normally takes 3–4 working days.

This sequence is for your safety. Only after that do you create a repair order online and send the unit off, well packed.

Airbag24 tests the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. The unit then goes back 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 13505637 get to Airbag24?

You send the control unit 13505637 as a parcel or book a UPS collection for an extra charge. The return after repair is also sent by UPS.

Place the printed repair order in the parcel, and pack the unit so that it is shock-resistant.