OBD2 Error Codes

Learn all about the P20BF code, what causes issues with the reductant heater control circuit, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P20C0 code, what causes the Reductant Heater "B" Control Circuit High, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P20C1 code, what causes issues with the reductant heater control circuit, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P20C2 code, what causes issues in the reductant heater control circuit, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P20C3 code, what causes the reductant heater "C" control circuit low issue, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P20C4 code, what causes Reductant Heater "C" Control Circuit High, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P20C5 code, what causes issues with the reductant heater control circuit, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P20C6 code, what causes issues with the Reductant Heater "D" control circuit, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P20C7 code, what causes reductant heater control circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P20C8 code, what causes issues with the reductant heater control circuit, and how to diagnose and fix common problems to maintain optimal engine performance.