P Codes – OBD2 Powertrain Codes

Learn all about the P063A code, what causes generator voltage sense circuit issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P063B code, what causes generator voltage sense circuit range/performance issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P063C code, what causes a generator voltage sense circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P063D code, what causes generator voltage sense circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P063E code, what causes auto configuration throttle input not present, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P063F code, what causes auto configuration engine coolant temperature input not present, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P0640 code, what causes intake air heater control circuit failures, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P0641 code, what causes sensor reference voltage 'A' circuit/open issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P0642 code, what causes sensor reference voltage "A" circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P0643 code, what causes sensor reference voltage 'A' circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.