OBD LensOBD Lens App
U1A4B97

Processor B of the control module. Component errors. Component or system operation is difficult or blocked

U1A4B97 is described as “Processor B of the control module. Component errors. Component or system operation is difficult or blocked” in the Polestar / Volvo reference.

Manufacturer reference family

Polestar / Volvo: U1A4B97

en

Processor B of the control module. Component errors. Component or system operation is difficult or blocked

Reference namespace
volvo
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Polestar, Volvo.

12 profiles assigned this reference family

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording
Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-10-09-v81. Sources and scope