Airbag control unit with part number P30724153

What does the airbag control unit P30724153 do?

The airbag control unit P30724153 controls the restraint system (SRS) for Volvo. It evaluates the crash sensors, makes the triggering decision for airbags and seatbelt pretensioners within milliseconds in an accident, and monitors the system continuously. It shows faults via the airbag warning light.

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

The manufacturer's number Bosch 0285001656 is also printed on the housing.

Why does the control unit P30724153 fail?

The most common cause is crash data stored after an accident, even without a deployed airbag. A normal diagnostic tool cannot erase it. Other causes are ageing, cold solder joints, moisture at plug connections and voltage spikes.

Airbag24 erases the crash data during the repair. Externally, the unit shows nothing of this.

The other causes at a glance:

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

How can you tell that the P30724153 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. A fault message also appears, and the diagnostic tool does not find the control unit. The fault memory cannot be cleared, and then the airbags and seatbelt pretensioners may not deploy in an emergency.

Such signs point to a fault in the system and belong in the check. Anyone who notices one of them should have the cause clarified.

Which vehicles is the P30724153 fitted in?

The control unit P30724153 is fitted in these vehicles: Volvo XC90 C (2002-2006) and C Facelift (2006-2014). Clarify before removal whether your vehicle is among them.

The vehicle list for this part number follows here:

• Volvo XC90 C (2002-2006)
• Volvo XC90 C Facelift (2006-2014)

The part number on the label of the removed unit is compared with this page; this only ensures that you have the right unit. In addition, have the fault memory read out, because only this log shows whether the control unit is defective or a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 0 285 001 656, 285001447, 285010210, 30724153, 30782386, 31295112.

How does the repair of the P30724153 work?

Have the fault memory read out and enclose the log; then disconnect the battery and remove the control unit. Afterwards create a repair order online and send the unit in, well packed. Airbag24 checks it on the test bench, puts defective components right, erases the crash data and tests the function, after which your own unit is returned.

The steps must be followed in this order, because removal only takes place after the battery is disconnected.

At Airbag24, checking, repairing and testing usually takes 3–4 working days. 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 P30724153 get to Airbag24?

Either you send the unit as a parcel, or you book a UPS collection for an extra charge. Airbag24 sends it back to you by UPS after the repair.

Be sure to put the printed repair order into the parcel, and pack the unit shockproof.