Airbag control unit with part number P8622189

What does the airbag control unit P8622189 do?

The airbag control unit P8622189 monitors the restraint system (SRS) of Volvo. It processes the signals from the crash sensors, decides within milliseconds in an accident which airbags and seatbelt pretensioners fire, and checks the system continuously.

Besides the part number, the unit carries the supplier number Bosch 0285001258 on its housing.

After an accident it stores crash data and locks itself; only a repair lifts the lock.

Why does the control unit P8622189 fail?

Crash data stored after an accident is the most common cause, even when no airbag has fired. A normal diagnostic tool cannot erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion on connectors, and voltage spikes.

Voltage spikes can be caused, for example, by a weak battery or a jump start, and they put stress on the electronics. Corrosion and moisture, by contrast, act on the connections at the connectors.

Airbag24 erases the crash data during the repair. Which of the other causes applies is shown by the examination of each individual case.

How can you tell that the P8622189 is defective?

A defect is indicated by the airbag warning light in the instrument cluster when it lights up permanently or intermittently. A fault message in the instrument cluster, a lost connection to the diagnostic tool, or a fault memory that cannot be cleared also point to a fault.

In a real emergency, the airbags and seatbelt pretensioners may then fail to fire. The light is therefore a clear warning that you should follow up promptly.

Only the fault memory shows whether the control unit itself is affected.

Which vehicles is the P8622189 fitted in?

The P8622189 is fitted in these vehicles: Volvo S80 TS (1998-2003) and TS Facelift (2003-2006). The details are based on the current state of our data, so compare your car with the label to be sure.

The vehicles listed here are those that our records show for this number:

• Volvo S80 TS (1998-2003)
• Volvo S80 TS Facelift (2003-2006)

Matching the part number on the label of the removed unit only confirms that you have the right unit. Have the fault memory read out beforehand, because only this result reveals whether the control unit is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 0 285 001 456, 285001254, 285001655, 30721921, 8622368, 8645271.

How does the repair of the P8622189 work?

First have the fault memory read out and attach the log to the unit. Then disconnect the battery before you remove the control unit. After that, create a repair order online and send the unit off well packed.

Airbag24 checks the unit on the test bench, repairs defective components and runs a function test. Airbag24 also erases stored crash data before the unit is returned.

Processing at Airbag24 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 P8622189 get to Airbag24?

You send the unit by parcel or book a UPS collection for an extra charge. The return after the repair is also made by UPS.

Put the printed repair order into the parcel and pack the control unit so that it is shock-proof.