P Codes – OBD2 Powertrain Codes

Learn all about the P2049 code, what causes reductant injection valve circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2043 code, what causes Reductant Temperature Sensor Circuit Range/Performance issues, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2044 code, what causes reductant temperature sensor circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P203F code, what causes reductant level too low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P203C code, what causes reductant level sensor circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2048 code, what causes reductant injection valve circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2045 code, what causes Reductant Temperature Sensor Circuit High, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2040 code, what causes reductant injection air pressure sensor "A" circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P203D code, what causes issues with the reductant level sensor circuit, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P203E code, what causes reductant level sensor circuit intermittent/erratic, and how to diagnose and fix common issues to maintain optimal engine performance.