Airbag control unit with part number 22761839

What does the airbag control unit 22761839 do?

The airbag control unit 22761839 controls the restraint system (SRS) in Chevrolet vehicles. It processes the signals from the crash sensors and, in an accident, decides within milliseconds on the triggering of airbags and seatbelt pretensioners. After an accident it stores crash data and locks itself.

It also monitors the entire system during operation. If it detects a fault, it reports this via the airbag warning light in the instrument cluster.

Why does the control unit 22761839 fail?

The most common cause is an entry with crash data from an earlier accident, even if no airbag has deployed. Other causes are aged components, cold solder joints, moisture and corrosion at plugs, and voltage spikes, for example with a weak battery or a jump start.

Crash data stays in the memory, because a normal diagnostic tool cannot remove it.

The other causes are related to ageing and environmental influences. Solder joints can go cold, plug contacts suffer from moisture, and voltage spikes put the electronics under strain.

How can you tell that the 22761839 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and an error message appears in the instrument cluster. In addition, the diagnostic tool cannot establish a connection to the control unit, and the fault memory cannot be erased.

If these signs occur, the airbags and seatbelt pretensioners may fail to deploy in an emergency. The warning light is a clear signal to have the system checked promptly.

Which vehicles is the 22761839 fitted in?

The 22761839 is fitted in these vehicles: Chevrolet HHR 1st generation (2006-2011).

The models are listed here:

• Chevrolet HHR 1st generation (2006-2011)

A comparison of the label number with this page confirms that the unit is the right one. Whether a defect lies in the control unit or whether a plug or cable is the cause is established only by the fault memory, which you have read out beforehand.

For the same vehicles, we also repair control units with the part numbers 15839792, 25938061, 5WY79320.

How does the repair of the 22761839 work?

First have the fault memory read out, then disconnect the battery. Only then remove control unit 22761839 and create a repair order online. Send the well-packed unit together with the log.

Afterwards Airbag24 checks the unit, replaces defective components, erases crash data and tests the function. Then you receive your own unit back. Processing at Airbag24 usually takes 3–4 working days, and this covers only checking, repairing and function testing.

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 22761839 get to Airbag24?

The route to Airbag24 is by parcel; alternatively, UPS collects the unit for an extra charge. The return shipment after the repair is also made by UPS.

The parcel contains the shockproof-packed unit and the printed repair order.