Chevrolet P204F Code
The Chevrolet P204F Code is a diagnostic trouble code that indicates an issue with the reductant system performance. Diagnostic Trouble Codes (DTCs) P204B, P204C, P204D, P208A, P208D, P20A0, P20A2, or P20A3, may be triggered when the engine speed is greater than 600 RPM and the battery voltage is greater than 11V. Additional causes and solutions