Airbag control unit with part number P31295241

What does the airbag control unit P31295241 do?

The airbag control unit P31295241 controls the restraint system (SRS) of Volvo. It processes the measurements from the crash sensors, decides in an impact within milliseconds on triggering airbags and seatbelt pretensioners, and checks the system continuously for faults. After an accident it stores crash data and locks itself.

The unit shows faults via the airbag warning light in the instrument cluster. The light is therefore the first indication that something in the system is wrong.

The crash data record what was captured during the accident and reside in the control unit itself.

Why does the control unit P31295241 fail?

The most common cause with the control unit P31295241 is crash data stored after an accident, even if no airbag has deployed. Aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes are also possible.

A normal diagnostic tool cannot delete the crash data. Airbag24 deletes them during the repair of the unit.

The further causes at a glance:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump start

How can you tell that the P31295241 is defective?

A defect in the P31295241 shows up as the airbag warning light in the instrument cluster, which lights up permanently or intermittently. In addition there is a fault message in the instrument cluster, a missing connection to the diagnostic tool, and a fault memory that cannot be cleared.

The light may stay on permanently or come on only now and then. In both cases it is a warning signal that must be taken seriously. As long as the fault is present, airbags and seatbelt pretensioners may not deploy in an emergency, so a displayed fault belongs in a prompt check.

Which vehicles is the P31295241 fitted in?

Check with the vehicle registration document in hand whether your car is listed. The airbag control unit P31295241 is fitted in these vehicles: Volvo XC60 Y20 (2008–2013) and Y20 Facelift (2013-2017).

The following overview names the vehicles that are known to us for this control unit.

• Volvo XC60 Y20 (2008–2013)
• Volvo XC60 Y20 Facelift (2013-2017)

Compare the label of the removed unit with this page; that only ensures it is the right unit. Have the fault memory read out before removal, because only this result shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285012268, 31318792, 31658440, P 31406637, P31313827, P31318792.

How does the repair of the P31295241 work?

Before removal have the fault memory read out and put the log into the parcel. Then disconnect the battery, remove the control unit P31295241, create a repair order online and send the well-packed unit. At Airbag24 processing usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, deletes stored crash data and carries out a functional test. Afterwards your own unit goes back 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 P31295241 get to Airbag24?

Either you send the control unit P31295241 as a parcel, or you book a UPS collection for an extra charge. The return after the repair is handled by UPS.

Put the printed repair order into the parcel and pad the unit so that it lies shock-resistant.