A P0273 code on your 2023 Volvo XC60 indicates a low voltage condition in the cylinder 5 fuel injector circuit. However, this code warrants careful consideration given the XC60's engine configuration.
XC60 Engine Details
The 2023 Volvo XC60 uses Volvo's modular four-cylinder engine platform. All variants—B5, B6 (mild hybrid), T6/T8 (plug-in hybrid)—are based on the 2.0L four-cylinder. A four-cylinder engine only has four cylinders, making a cylinder 5 code unexpected.
Understanding the Code Anomaly
P0273 (cylinder 5) appearing on a four-cylinder vehicle suggests either a diagnostic system error, incorrect scan tool vehicle selection, or potentially a manufacturer-specific code interpretation issue. Volvo may use different numbering conventions in their proprietary system.
Diagnostic Approach
Use Volvo's VIDA diagnostic system for accurate code interpretation. VIDA will show manufacturer-specific code definitions that may differ from generic OBD-II. If an actual injector circuit fault exists, VIDA will correctly identify the affected cylinder using Volvo's numbering.
Resolution Path
Verify the code with VIDA to get accurate Volvo-specific information. If the scan tool misread the code, the actual issue may be different. Address any real driveability symptoms using Volvo-specific diagnostics. For unexplained codes on a 2023 model, Volvo dealer diagnosis under warranty is appropriate.