Airbag control unit with part number 86250-08151

What does the airbag control unit 86250-08151 do?

This airbag control unit 86250-08151 is the central control unit of the restraint system (SRS) for SsangYong. It processes the signals from the crash sensors, determines in a crash which airbags and seatbelt pretensioners are triggered, and shows faults via the airbag warning light.

The evaluation runs continuously in the background. The unit checks signals and supply and records every deviation in the fault memory.

After an accident it stores crash data and locks itself.

Why does the control unit 86250-08151 fail?

The most common cause is crash data that remains in the unit after an accident, even if no airbag was triggered. A normal diagnostic tool cannot erase it. Other causes include aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

This recording is then held in the unit's own memory.

Aged components and cold solder joints count among the technical causes within the unit itself. Moisture and corrosion at plug connections also harm the unit, and voltage spikes arise, for example, from a weak battery or a jump start.

How can you tell that the 86250-08151 is defective?

A defect first shows as the airbag warning light in the instrument cluster, which lights up permanently or intermittently. A fault message in the instrument cluster, a diagnostic tool that cannot reach the control unit, or a fault memory that cannot be cleared are further signs. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

These signs occur:

• airbag warning light in the instrument cluster on permanently
• airbag warning light in the instrument cluster on intermittently
• fault message in the instrument cluster
• diagnostic tool cannot reach the control unit
• fault memory cannot be cleared

Which vehicles is the 86250-08151 fitted in?

The control unit 86250-08151 is fitted in these vehicles: SsangYong Rexton Y250 (2006-2012), Y200 (2001-2006) and Y290 W (2012-2017). The list makes it easy to compare with your own car.

The list shows the vehicles for which the part number is known to us.

• SsangYong Rexton Y250 (2006-2012)
• SsangYong Rexton Y200 (2001-2006)
• SsangYong Rexton Y290 W (2012-2017)

Do not rely on the list alone when removing the unit. Comparing the number on the label of the unit with this page only confirms its identity. Have the fault memory read out beforehand, because only the result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 86250-08120, 86250-08140.

How does the repair of the 86250-08151 work?

You have the fault memory read out, attach the log, then disconnect the battery before removing the control unit. Then create a repair order online and send the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 examines the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. Afterwards you receive your own unit back.

The steps before removal must be observed for safety reasons.

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 86250-08151 get to Airbag24?

A parcel brings the unit to Airbag24, or UPS collects it for an extra charge. Airbag24 returns it by UPS after repair.

Enclose the printed repair order and pack the unit shock-resistantly.