Airbag control unit with part number 86250-21011

What does the airbag control unit 86250-21011 do?

The airbag control unit 86250-21011 brings together the restraint system (SRS) of SsangYong. It receives the values from the crash sensors, determines in an accident within milliseconds which airbags and seatbelt pretensioners trigger, and keeps watch over the system constantly. Faults that occur are reported via the airbag warning light.

Part of this work runs continuously as soon as the ignition is switched on: the unit reads sensor values and checks connections and trigger circuits. You do not see these processes while driving.

After an accident the control unit stores crash data and locks itself.

Why does the control unit 86250-21011 fail?

The most common cause is that crash data is stored after an accident, even if no airbag has deployed; a standard diagnostic tool does not make it disappear. Aged components, cold solder joints, moisture and corrosion at plug connectors and voltage spikes are also possible.

Crash data held in memory remains there until Airbag24 erases it during the repair. Erasing it via the diagnostic tool is not intended.

Which of the other causes applies in the individual case can only be established by examining the unit.

• aged electronic components,
• cold solder joints,
• moisture and corrosion at plug connectors,
• voltage spikes.

How can you tell that the 86250-21011 is defective?

A defect is signalled by the airbag warning light, which lights up permanently or intermittently, by an error message in the instrument cluster, by a diagnostic tool without a connection, or by a fault memory that cannot be cleared. In such a state, the airbags and seatbelt pretensioners may not deploy in an emergency.

The warning light is the clearest indication for you, because it shows the state of the system directly. An error message in the display may also appear.

A diagnostic tool that makes no contact points to a fault in communication. It can lie in the control unit, but equally in cables or plugs. For this reason, have the system checked promptly.

Which vehicles is the 86250-21011 fitted in?

The airbag control unit 86250-21011 is fitted in these vehicles: SsangYong Stavic A100 (2004-2013); SsangYong Rodius A100 (2004-2013).

The following list shows the assignment to vehicles.

• SsangYong Stavic A100 (2004-2013)
• SsangYong Rodius A100 (2004-2013)

A comparison of the part number on the label shows that you have the correct unit in front of you, nothing more. Before removing the unit, therefore, have the fault memory read out. Only the log shows whether the control unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 0 285 010 181, 5WK44281, 5WY64004, 8625021030, 8625021031.

How does the repair of the 86250-21011 work?

First have the fault memory read out and keep the log. Then disconnect the battery and only then remove the control unit. Next, create the repair order online and send the unit in well packed.

Airbag24 then examines the unit, repairs the faulty components and erases the stored crash data. The functional test concludes the work, and the unit returns to you. For this process at Airbag24, 3–4 working days are usually planned.

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 86250-21011 get to Airbag24?

You can send the unit yourself as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

Put the printed repair order in the parcel, and pack the unit shockproof.