Airbag control unit with part number 30724153

What does the airbag control unit 30724153 do?

The airbag control unit 30724153 coordinates the restraint system (SRS) in vehicles of the make Volvo. It reads the crash sensors, determines within milliseconds in an accident which airbags and seatbelt pretensioners are triggered, and checks the system without interruption for faults.

Detected faults appear via the airbag warning light in the instrument cluster. After an accident the unit stores crash data and locks itself.

The number Bosch 0285001656 is also printed on the housing.

Why does the control unit 30724153 fail?

Stored crash data is the most common cause, even if no airbag was triggered in the accident. A standard diagnostic tool cannot erase it. Further causes are aged components, moisture at plugs and voltage spikes.

The unit keeps a record of such an event in its memory. The data remain there until they are removed during the repair.

The other causes relate to ageing and environmental influences. A weak battery or a jump start can also produce voltage spikes that strain the electronics.

How can you tell that the 30724153 is defective?

Typical signs are an airbag warning light in the instrument cluster that lights up permanently or intermittently, and an error message in the instrument cluster. The diagnostic tool also finds no connection to the control unit. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

• airbag warning light on permanently or intermittently
• error message in the instrument cluster
• no connection to the diagnostic tool
• fault memory cannot be cleared

Only reading out the fault memory shows which cause lies behind it.

Which vehicles is the 30724153 fitted in?

The control unit 30724153 belongs to the make Volvo. It is fitted in these vehicles: Volvo XC90 C (2002-2006) and C Facelift (2006-2014).

The list of vehicles follows:

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

Compare the number on the label of the removed unit with this page. This only shows you whether you have the right unit. Have the fault memory read out beforehand; 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 30782386, 32315584, P30658913, P30724152.

How does the repair of the 30724153 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, remove the control unit and create a repair order online. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24 the unit is checked, defective components are replaced, stored crash data is erased and a function test is carried out. The unit then goes back to you.

The order of steps on the vehicle is mandatory 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 30724153 get to Airbag24?

You send the control unit 30724153 to us as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

The printed repair order is in the parcel, and the unit is packed shock-proof.