01025 - Faulty activation of the airbag warning light airbag control unit fault

What does error code 01025 mean in the airbag control unit?

Error code 01025 reports faulty control of the airbag warning light, that is, the display with which the airbag control unit signals faults in the restraint system. The control unit stores this fault in the fault memory, and the control of the light is directly affected by it, so that the display no longer works properly.

The code therefore concerns the airbag warning light and its control. For Audi, this meaning is known, and it concerns the airbag control unit of the respective vehicle.

The airbag warning light is one of the displays through which the restraint system reports faults to the driver.

How do you recognise error code 01025?

You can recognise error code 01025 by the airbag warning light not working correctly and the code being stored in the fault memory of the airbag control unit in the vehicle. It is read out with a diagnostic tool, and it cannot be permanently cleared as long as the control of the light is actually disrupted.

The display alone does not show the code. A glance at the light is therefore not sufficient, because only reading it out makes the entry in the fault memory visible.

If the control remains disrupted even after reading out, the fault is still present and the cause must be narrowed down.

What causes error code 01025?

Error code 01025 concerns the control of the airbag warning light, so connectors, wiring, the light itself and the airbag control unit can be causes. Typical are contact problems at the connector, damaged wiring or a faulty component, although the control unit itself may also be affected.

• contact problems at the connector of the warning light control
• damaged wiring to the airbag warning light
• a faulty airbag warning light
• a fault in the airbag control unit itself

The check therefore begins at the connector and the wiring, before the control unit itself is considered as the cause.

In which vehicles does error code 01025 occur?

Error code 01025 is known on vehicles of the Audi brand, namely on the Audi 80 8C, where the control of the airbag warning light is disrupted. The list is not complete, and on other vehicles the meaning of the code may differ, so it is worth checking the specific vehicle.

The code is so far known for the Audi 80 8C named here, that is, for a model of the Audi brand. Whether another vehicle is affected only becomes clear when it is read out with a diagnostic tool.

How is error code 01025 resolved?

Error code 01025 is resolved by first having the fault memory read out with a diagnostic tool and then having the connectors, wiring and airbag warning light checked by a specialist workshop. If the cause lies in the airbag control unit, disconnect the battery and remove the unit before sending it to Airbag24.

The specialist workshop first checks the connectors and wiring to the airbag warning light, because the meaning points to them. Only if no fault is found there does the control unit move into focus.

If the cause lies in the control unit, create a repair order online, and the unit is sent to Airbag24. Checking, repairing and testing usually take 3–4 working days. Work on the airbag system should be left to qualified professionals.

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.