Airbag control unit with part number 23423840

What does the airbag control unit 23423840 do?

The airbag control unit 23423840 runs the restraint system (SRS) of Opel and decides in an accident, within milliseconds, which airbags and seatbelt pretensioners are triggered.

To do this it processes the signals from the crash sensors and monitors the system without pause. It shows faults via the airbag warning light in the instrument cluster. After an accident it stores crash data and locks itself.

Why does the control unit 23423840 fail?

The most common cause on the 23423840 is stored crash data after an accident, even without a triggered airbag. Added to this are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Stored crash data remains in the control unit until it is removed during a repair. A normal diagnostic tool cannot erase it, while Airbag24 removes it as part of the repair. Aged electronic components, cold solder joints, moisture and corrosion at plug connections also play a role, as do voltage spikes, for example from a weak battery or a jump start.

How can you tell that the 23423840 is defective?

A defect on the 23423840 shows itself through the airbag warning light in the instrument cluster, which stays on permanently or intermittently. Added to this are fault messages, no connection to the diagnostic tool and a fault memory that cannot be cleared.

This light reports the fault directly. As long as it is active, airbags and seatbelt pretensioners may not deploy in an emergency. Therefore have the warning checked by an inspection without delay.

Which vehicles is the 23423840 fitted in?

The 23423840 is fitted in these vehicles: Opel Corsa C (2000-2006).

Here you see the models for which this part number is recorded:

• Opel Corsa C (2000-2006)

Comparing the part number on the label of the removed device with this page only confirms that you have the right device. Whether the defect lies in the control unit or whether a plug or a cable is the cause is revealed only by the fault memory. Have it read out beforehand.

For the same vehicles, we also repair control units with the part numbers 13212353CA, 24 439 952 LA, 24 439 953 LB, 24439954, 9115117.

How does the repair of the 23423840 work?

First have the fault memory read out and attach the log. Then disconnect the battery, remove the 23423840, create a repair order online and send the device in well packed. Airbag24 checks and repairs it, erases the crash data and returns your device.

The order is binding for your safety. The control unit may only be removed once the memory has been read out and the battery disconnected.

At Airbag24 the device is examined on the test bench, defective components are replaced and a function test completes the work. The usual processing time is 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 23423840 get to Airbag24?

You send the 23423840 in as a parcel, or book a UPS collection for an extra charge. After the repair Airbag24 returns the device by UPS.

Put the printed repair order into the parcel and pack the device shockproof.