Volvo S80 Series 2 Airbag Control Unit Repair

What is a Volvo S80 Series 2 airbag control unit?

The Volvo S80 Series 2 airbag control unit is the central control unit that precisely decides whether to deploy the airbags and seatbelt pretensioners in the event of a collision. It processes signals from various sensors, stores relevant crash data, and is essential for the vehicle's effective safety.

This SRS control unit is the heart of the occupant protection system in the Volvo S80 Series 2. It continuously monitors the condition of all airbag components and ensures their proper function.

Internal storage capacitors allow the airbags to be deployed even in the event of a brief power failure, such as an accident. This ensures that the safety systems remain active even under extreme conditions.

Why is the Volvo S80 Series 2 airbag control unit defective?

A defective Volvo S80 Series 2 airbag control unit often results from internal errors such as corrupted memory, communication problems in the CAN bus, or incorrect configuration after a collision. These problems cause the airbag warning light to remain permanently illuminated and the system to no longer fulfill its protective function, necessitating urgent Volvo S80 Series 2 airbag control unit repair.

Common causes are internal software or hardware errors that lead to incorrect configuration of the module. Such problems may require reprogramming or resetting the control unit.

Communication errors with the vehicle network (CAN bus) are also a common cause of defects. This can be due to a faulty control unit itself, network problems, or damaged wiring.

After an impact, the control unit stores crash data, which can result in the module being disabled. In this case, the control unit must be professionally repaired and reprogrammed for the individual vehicle identification number (VIN).

Common error codes for Volvo S80 Series 2 airbag control unit repair

Diagnosing a faulty Volvo S80 Series 2 airbag control unit is often made easier by specific error codes that directly indicate internal problems or communication issues within the control unit. These codes are crucial for a precise Volvo S80 Series 2 airbag control unit repair.

• SRS-00D0 → SRS control unit incorrect configuration → Incorrect module programming, software problems or internal errors.
• SRS-00D5 → Communication error with SRS control unit → Faulty control unit, network problems or defective wiring in the vehicle network.
• B1000 → Control unit communication error → Interruption or malfunction in the data transmission of the airbag control unit.

What part numbers are available for the Volvo S80 Series 2 airbag control unit repair?

For a successful Volvo S80 Series 2 airbag control unit repair or replacement, an exact part number match is paramount to ensure the compatibility and functionality of the safety system. Verified OEM part numbers are essential for correct repair.

The following 100% verified OEM part numbers are relevant for the airbag control unit of the Volvo S80 Series 2 (approx. 2001–2006):

• P30658912 (Bosch OEM): This number comes from tested and functional devices and is often found in parallel with 0285001456.
• 0285001456 (Bosch OEM): A common Bosch OEM number that confirms compatibility with various Volvo models of these years, including the S80, S60, and V70.
• 9472627 (Volvo OEM): This original Volvo part number is specific for airbag control units of the S80 models (TR/TS) with 2.8 T6 24V engine from 2001-2006.

A replacement part may only be installed if the part number matches exactly. Otherwise, the functionality of the airbag system cannot be guaranteed, which underscores the need for a professional Volvo S80 Series 2 airbag control unit repair.