Airbag control unit with part number P30667469

What is the function of the airbag control unit P30667469?

The airbag control unit with part number P30667469, also known as the SRS Control Unit, is the central control module for the occupant protection system in certain Volvo models. It is manufactured by the original equipment manufacturer Bosch under reference number 0285001655 and is responsible for processing sensor signals and activating airbags and seatbelt pretensioners in the event of a crash.

As the brain of the passive safety system, this module continuously monitors data from the crash sensors distributed throughout the vehicle. In the event of a collision, it determines within milliseconds whether and which restraint systems—such as the driver’s airbag, knee airbag, or seatbelt pretensioners—should be deployed to provide optimal protection for occupants.

The control unit is specifically designed for Volvo’s P2 platform and communicates with other control modules in the vehicle to ensure seamless operation of the entire system.

Why does the control unit P30667469 fail?

Typical faults of the P30667469 control unit are electronic in nature. The most common causes include an internal failure that prevents communication via the OBD2 interface, as well as stored crash data following an airbag deployment. This data locks the unit and cannot be cleared using standard diagnostic tools. Moisture damage can also lead to malfunctions.

A primary cause of failure is the permanent storage of crash data after an accident. Once airbags or seatbelt pretensioners have been activated, the control unit becomes self‑locked and must either be replaced or professionally reset. Simply clearing the fault memory is no longer sufficient.

Another frequent reason for failure is an internal electronic malfunction. This can render the unit inaccessible via the OBD2 interface. In such cases, the workshop cannot perform diagnostics or read out error codes, even though the airbag warning light remains illuminated.

Moisture or age‑related wear of electronic components can also result in intermittent or persistent malfunctions, often indicated by non‑erasable error codes in the system.

How do you recognize a fault in the P30667469 control unit?

A fault in the P30667469 control unit primarily manifests as a permanently illuminated airbag warning light on the instrument cluster, which often remains active even after restarting the engine. Additionally, it is typical that no diagnostic connection can be established with the unit. Stored error codes such as CFFF, B1193, or U3000 are clear indicators of an internal defect.

The most definitive symptom is the active airbag warning light. It may remain steadily illuminated or, for example, illuminate for 30 seconds after starting the engine and stay lit. This signals a serious, safety‑critical fault in the system.

Another clear sign is the loss of OBD2 communication. If a workshop attempts to read the fault memory, they receive no response from the airbag control unit. The device is no longer accessible to diagnostic systems.

Volvo‑specific error codes stored in the fault memory also directly point to a problem with the SRS Control Unit. Codes such as CFFF (internal fault), B1193 (crash event stored), or U3000 (control unit malfunction) indicate a defect requiring repair.

In which vehicles is the P30667469 control unit installed?

The airbag control unit with part number P30667469 is primarily used in Volvo vehicles. At Airbag24, we repair this control unit for XC70 models built on the P2 platform, as well as for related V70 models. Compatibility spans multiple model years of this generation.

Specifically, this component—also known under Bosch part number 0285001655—is found in the following models:

Volvo XC70 P2 (model years 2000–2004)

Volvo XC70 P2 Facelift (model years 2004–2007)

Volvo V70 / XC70 Cross Country (Type 295, often referred to as Type S/Z)

How is the P30667469 control unit repaired?

Upon receipt at Airbag24, the P30667469 control unit undergoes a comprehensive electronic inspection to identify the exact cause of the fault. Repair includes addressing internal defects and, in particular, professionally resetting the stored crash data. Following successful restoration and a final test, the unit is fully functional and ready for installation.

First, we recommend reading the fault memory before removing the control unit to document any error codes. After removal, please send the unit securely packaged to us.

Our technicians perform a detailed incoming inspection to verify the reported fault. This is followed by professional, component-level repair, which includes erasing crash data directly from the device’s memory and restoring the electronics in cases of communication errors.

After repair, the control unit undergoes a comprehensive functional test to ensure all faults have been resolved and that it meets the manufacturer’s specifications. We provide 2 years' statutory liability for defects on all repairs.