Airbag control unit with part number 15835180

What does the airbag control unit 15835180 do?

The airbag control unit 15835180 controls the restraint system (SRS) of Chevrolet. It evaluates the signals from the crash sensors, decides in an accident within milliseconds on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously. After an accident it stores crash data and locks itself.

The control unit reports faults via the airbag warning light. Monitored components include sensors, airbags and seatbelt pretensioners.

As long as the system is in order, the control unit stays in the background. It only attracts attention in case of a fault or after an accident.

Why does the control unit 15835180 fail?

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

The crash data remain in memory until they are specifically removed. Until then the control unit continues to report the fault.

• Voltage spikes, for example from a weak battery or jump-starting
• Corrosion at plug connections
• Cold solder joints
• Aged electronic components

Which cause applies in the individual case is shown only by testing the system.

How can you tell that the 15835180 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and in addition an error message appears in the instrument cluster. The diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared. In that state airbags and seatbelt pretensioners may fail to deploy in an emergency.

The warning light shows the fault, and therefore it is the most important indication. An error message in the instrument cluster confirms the picture.

Whether the control unit itself is affected is only shown by reading out the fault memory. Without this result the cause remains open.

Which vehicles is the 15835180 fitted in?

The control unit 15835180 is fitted in these vehicles: Chevrolet Cobalt 1st generation (2004-2010).

The following overview names the vehicles that Airbag24 has recorded for this number.

• Chevrolet Cobalt 1st generation (2004-2010)

Compare the part number on the label of the removed unit with this page, so that it is ensured you have the right unit. Also have the fault memory read out beforehand, because it 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 15249432, 22729009, 22729011.

How does the repair of the 15835180 work?

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

At Airbag24 the unit is tested on the test bench, defective components are repaired, stored crash data are erased and a function test is run. Afterwards your own unit goes back to you.

The sequence serves safety when working on the vehicle, so removal follows only once the battery is 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 15835180 get to Airbag24?

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

Put the printed repair order into the parcel and pack the unit shock-proof.