Airbag control unit with part number 13227920

What does the airbag control unit 13227920 do?

The airbag control unit 13227920 controls the restraint system (SRS) in the Opel: it evaluates the crash sensors, decides within milliseconds on the airbags and seatbelt pretensioners, and monitors the system continuously.

In a crash every millisecond counts, so the unit works without delay. It also checks the signal paths so that a fault is noticed early.

If the control unit detects a fault, it reports it via the airbag warning light. After an accident it creates crash data and locks itself.

Why does the control unit 13227920 fail?

Stored crash data is the most common cause with the 13227920, even if no airbag has triggered; other possible causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data cannot be erased with a standard diagnostic tool. Airbag24 erases it during the repair.

The other causes mainly affect the electronics and their connections. Components age, solder joints can go cold, and moisture and corrosion attack the contacts.

Voltage spikes, for example from a weak battery or a jump start, put additional strain on the electronics.

How can you tell that the 13227920 is defective?

The airbag warning light in the instrument cluster indicates a defect in the 13227920 when it lights up constantly or intermittently; a fault message, lack of connection to the diagnostic tool and a fault memory that cannot be cleared also point to a defect.

The warning light is the most visible sign of a fault. As long as the fault exists, airbags and seatbelt pretensioners may not trigger in an emergency.

Have the condition checked promptly and do not wait to see whether the warning clears by itself.

Which vehicles is the 13227920 fitted in?

The airbag control unit 13227920 is fitted in these vehicles: Opel Astra H (2004-2009). The part number on the label of the removed unit is decisive.

The following list shows the vehicles on record for this part number.

• Opel Astra H (2004-2009)

Compare the part number on the label of the removed unit with this page. That only ensures it is the right unit. Also have the fault memory read out, because only this result shows whether the control unit itself is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 1232168, 13 181 977 DU, 13 188 857, 13 249 347 ST, 13 251 080 EC, 13 251 081.

How does the repair of the 13227920 work?

First have the fault memory of the 13227920 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 the unit in well packed.

Airbag24 tests the unit on the test bench, replaces defective components, erases the stored crash data and carries out a functional test. The unit then goes back to you.

Processing at Airbag24 for testing, repairing and checking usually takes 3–4 working days.

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 13227920 get to Airbag24?

The 13227920 reaches Airbag24 either as a parcel or with a UPS collection booked for an extra charge; after the repair it goes back to you by UPS.

The printed repair order goes into the parcel. Pack the unit shockproof before handing it over.