Airbag control unit with part number 86250-08141

What does the airbag control unit 86250-08141 do?

The airbag control unit 86250-08141 controls the restraint system (SRS) for SsangYong. It continuously checks the signals from the crash sensors and, in the event of an accident, decides within fractions of a second which airbags and seatbelt pretensioners are triggered. It indicates faults via the airbag warning light, and after an accident it stores crash data and locks itself.

The device works in the background as long as the system is in operation, not only at the moment of an accident.

In this vehicle, all the information needed for a deployment comes together in this control unit. A failure therefore affects the entire restraint system, not just a single airbag.

Why does the control unit 86250-08141 fail?

For the 86250-08141, the most common cause is crash data stored after an accident, even if no airbag was deployed; a normal diagnostic tool cannot erase them. Other causes are aged components, cold solder joints, moisture and corrosion on plugs, and voltage spikes from a weak battery or a jump start.

Electronics age, and individual components change their characteristics as a result. Solder joints become susceptible over time, which means a fault may only appear intermittently.

Moisture gets to the contacts via plug connections and promotes corrosion there. Voltage spikes put additional strain on the electronics, especially when starting with external power.

If you look for the cause, you quickly encounter several possibilities at once. Aging, moisture and voltage can act together, which makes narrowing it down without testing difficult.

How can you tell that the 86250-08141 is defective?

A fault on the 86250-08141 shows up as an airbag warning light in the instrument cluster that stays on permanently or intermittently, as an error message in the instrument cluster, as a diagnostic tool that cannot establish a connection, or as a fault memory that cannot be cleared. In that case the airbags and seatbelt pretensioners may not be able to deploy in an emergency.

The airbag warning light in the instrument cluster is the sign you are most likely to notice. If it does not go out again after switching on, this is a clear reason for a check.

A diagnostic tool without a connection to the control unit may also be due to wires or plugs. This sign therefore does not by itself tell you whether the control unit is affected.

Which vehicles is the 86250-08141 fitted in?

The control unit 86250-08141 is fitted in these vehicles: SsangYong Rexton Y250 (2006-2012), Y200 (2001-2006) and Y290 W (2012-2017).

The vehicles to which this number is assigned are listed here:

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

Before removal, compare the part number on the label of the unit with this page. This only confirms that it is the right unit and says nothing about a cause. Also have the fault memory read out beforehand, because only this 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 86250-08141 work?

For the repair of the 86250-08141, a fixed sequence applies: first have the fault memory read out, attach the log, disconnect the battery, and only then remove the control unit. Then create a repair order online and send the unit well packed. Airbag24 needs 3–4 working days for checking, repairing and testing as a rule.

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test.

Afterwards your own unit is returned 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 86250-08141 get to Airbag24?

You send the control unit 86250-08141 as a parcel or arrange a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

The printed repair order belongs in the parcel. Pack the unit shock-proof before handing it over.