Airbag control unit with part number 90532628

What does the airbag control unit 90532628 do?

The control unit 90532628 is the airbag control unit for Opel and controls the restraint system (SRS). It evaluates the crash sensors and, in an emergency, decides which airbags and seatbelt pretensioners are triggered.

During operation, the unit runs continuously, checks the system constantly and reports faults via the airbag warning light in the instrument cluster.

The housing additionally carries the manufacturer's part number Continental 5WK4114. After an accident, the unit stores crash data and then locks itself.

Why does the control unit 90532628 fail?

With the 90532628, the most common cause is the storage of crash data after an accident, even if no airbag has triggered, and a standard diagnostic tool cannot erase this data. Other causes include ageing components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data is therefore the first thing to check in any fault search, because an ordinary diagnostic tool cannot remove it. It remains in the memory even when no visible damage can be seen on the vehicle.

Electronic components age over the years, solder joints on the circuit board can go cold, and moisture or corrosion affects the plug connections.

Voltage spikes, for example with a weak battery or when connecting to jump leads, also count among the possible triggers.

How can you tell that the 90532628 is defective?

A fault in the 90532628 can be recognised by the airbag warning light in the instrument cluster, which stays on permanently or intermittently. Also signs of a fault are an error message in the instrument cluster, no connection of the diagnostic tool, and a fault memory that cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then possibly not trigger, so each of these indications must be taken seriously. The warning light gives the notice itself, before the problem has a greater effect.

The warning light is therefore the first warning sign, and you should pay attention to it as soon as it lights up, even if the vehicle still starts normally.

In which vehicles is the 90532628 fitted?

The control unit 90532628 is fitted in these vehicles: Opel Corsa B (1993-2000).

The list shows the vehicles stored for this part number.

• Opel Corsa B (1993-2000)

First compare the part number on the label of the removed unit with this page. This only ensures that it is the correct unit. Also have the fault memory read out beforehand, because only this result shows whether the control unit itself is faulty or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 09114585 EE, 09229038BB, 3203311, 5WK42924, 90532443.

How does the repair of the 90532628 work?

First you have the fault memory read out and enclose the log. Then you disconnect the battery and only afterwards remove the control unit 90532628.

Then you create a repair order online and send the unit in well packed. Airbag24 checks it on the test bench, repairs defective components, erases the crash data and performs a function test before your own unit is returned to you.

Processing at Airbag24 normally 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 90532628 get to Airbag24?

The control unit 90532628 comes to Airbag24 as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

Place the printed repair order into the parcel, and pack the unit shock-resistant.