Airbag control unit with part number 24407201

What does the airbag control unit 24407201 do?

The airbag control unit 24407201 is the central control unit of the restraint system (SRS) of Opel. It evaluates the crash sensors and decides in an accident, within fractions of a second, which airbags and seatbelt pretensioners are triggered.

The unit also monitors the system continuously. It shows detected faults via the airbag warning light in the instrument cluster.

After an accident, the unit stores crash data and locks itself. While you are driving, this remains invisible to you, but the control unit keeps working without interruption.

Why does the control unit 24407201 fail?

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

Crash data cannot be seen from the outside. A vehicle can therefore look unremarkable while the control unit still contains entries.

The other causes act over a longer period. Electronics age, solder joints can go cold, and moisture and corrosion attack the plugs. Voltage spikes arise, for example, from a weak battery or a jump start.

How can you tell that the 24407201 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, and a fault message appears. In addition, the diagnostic tool finds no connection to the control unit 24407201, or the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then possibly not deploy in an emergency.

• Airbag warning light on permanently or intermittently
• Fault message in the instrument cluster
• No connection between the diagnostic tool and the control unit
• Fault memory cannot be cleared

The light indicates the defect. You should therefore take these signs seriously and have them clarified promptly.

Which vehicles is the 24407201 fitted in?

The control unit 24407201 is fitted in these vehicles: Opel Astra G (1998-2004).

The vehicles in detail:

• Opel Astra G (1998-2004)

Comparing the part number on the label of the removed unit with this page only ensures that you have the right unit. Also have the fault memory read out beforehand, because only this log 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 09174004UU, 24416703DL, 24416705DN, 5WK42876.

How does the repair of the 24407201 work?

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

Airbag24 checks the unit on the test bench, repairs defective components, clears the crash data and carries out a function test. Afterwards, your unit is sent 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 24407201 get to Airbag24?

You send the control unit 24407201 as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

The printed repair order goes into the parcel, and the unit is packed shockproof.