Diagnostic Trouble Code Index for January 2023
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Diagnostic Trouble Codes (DTC)
| Count | Trouble Code | Sample Definition | Manufacturers |
| 4 | P0300 | Multiple Cylinder Misfire Detected | Ford, GMC, Hyundai, Ram |
| 2 | P0016 | Crankshaft/Camshaft Timing Misalignment | Mazda, Scion |
| 2 | P0171 | Fuel System Lean (Bank 1) | Chevrolet, Ram |
| 2 | P0340 | Camshaft Position Sensor Circuit Malfunction | Ford, Toyota |
| 1 | P0017 | Crankshaft Position - Exhaust Camshaft Position Correlation | Kia |
| 1 | P0019 | Crankshaft Position - Exhaust Camshaft Position Correlation (Bank 2) | Subaru |
| 1 | P0020 | Camshaft Position 'A' Actuator Circuit Malfunction (Bank 2) | Ford |
| 1 | P0172 | Fuel System Rich (Bank 1) | Ford |
| 1 | P0175 | Fuel System Rich (Bank 2) | Ford |
| 1 | P0230 | Fuel Pump Relay Control Circuit Malfunction | Chevrolet |
| 1 | P0299 | Turbocharger Engine Underboost | Chevrolet |
| 1 | P0303 | Cylinder 3 Misfire Detected | Hyundai |
| 1 | P0304 | Cylinder 4 Misfire Detected | Hyundai |
| 1 | P0305 | Cylinder 5 Misfire Detected | GMC |
| 1 | P0316 | Misfire Occurred In First 1,000 Revolutions | Ford |
| 1 | P0320 | No Crank Reference Signal To PCM | Ford |
| 1 | P0335 | Crankshaft Position Sensor Circuit Malfunction | Chevrolet |
| 1 | P0337 | CKP Sensor Circuit Low Duty Cycle | Chevrolet |
| 1 | P0365 | Exhaust Camshaft Position Sensor Circuit Malfunction | Ford |
| 1 | P040B | EGR Gas Temperature Sensor 1 Circuit Performance | Ram |
| 1 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | Ram |
| 1 | P0441 | EVAP Purge System Performance | Toyota |
| 1 | P0456 | EVAP System Very Small Leak Detected | Jeep |
| 1 | P0505 | Idle Control System Malfunction | Jeep |
| 1 | P0507 | Idle Speed High | Ford |
| 1 | P0521 | Engine Oil Pressure Sensor Performance | Chevrolet |
| 1 | P061C | ETC Level 2 RPM Performance | Ford |
| 1 | P0740 | TCC Solenoid Circuit Malfunction | Ram |
| 1 | P1004 | Short Runner Valve Solenoid Control Performance | Dodge |
| 1 | P1101 | Intake Airflow System Performance | Chevrolet |
| 1 | P1336 | CKP Sensor System Variation Not Learned | Ford |
| 1 | P1524 | Brake Booster Pressure Sensor Range/Performance | Ram |
| 1 | P2196 | Heated Oxygen Sensor (Bank 1 Sensor 1) Stuck Rich | Ford |
| 1 | P2198 | Air Fuel Ratio Sensor (Bank 2 Sensor 1) Signal Stuck "Rich" | Ford |
| 1 | P2261 | Supercharger Bypass Valve Stuck | Chevrolet |
| 1 | P2271 | Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich | Ford |
| 1 | P2273 | Heated Oxygen Sensor (Bank 2 Sensor 2) Signal Biased Rich | Ford |
| 1 | P2560 | engine coolant level low | Ford |
| 1 | U012D | Lost communication with alternator control module | Ram |
