P Codes – OBD2 Powertrain Codes

Learn all about the P2042 code, what causes issues with the reductant temperature sensor circuit, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P2046 code, what causes reductant temperature sensor circuit intermittent, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2047 code, what causes reductant injection valve circuit/open issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P204B code, what causes reductant pressure sensor circuit range/performance issues, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P204A code, what causes reductant pressure sensor circuit issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P204C code, what causes reductant pressure sensor circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P204D code, what causes reductant pressure sensor circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P204E code, what causes reductant pressure sensor circuit intermittent/erratic issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P204F code, what causes reductant system performance issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P2050 code, what causes reductant injection valve circuit issues, and how to diagnose and fix common problems to maintain optimal engine performance.