Diagnostic Trouble Code Index for May 2021
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 |
| 6 | P0300 | Multiple Cylinder Misfire Detected | Audi, Dodge, Hyundai, Mercedes-Benz, Toyota |
| 3 | P0304 | Cylinder 4 Misfire Detected | Acura, Hyundai, Mercedes-Benz |
| 3 | P0305 | Cylinder 5 Misfire Detected | Acura, Honda, Mercedes-Benz |
| 2 | P0012 | Camshaft Position 'A' Over-Retarded (Bank 1) | Dodge, Hyundai |
| 2 | P0172 | Fuel System Rich (Bank 1) | Chevrolet, Honda |
| 2 | P0175 | Fuel System Rich (Bank 2) | Chevrolet, Ford |
| 2 | P0336 | Crankshaft Position Sensor Performance | Chevrolet, GMC |
| 2 | P0340 | Camshaft Position Sensor Circuit Malfunction | Mitsubishi, Nissan |
| 2 | P0411 | Secondary AIR System Incorrect Airflow Detected | Chevrolet |
| 2 | P061C | ETC Level 2 RPM Performance | Chrysler |
| 1 | P0010 | Camshaft Position 'A' Actuator Circuit Malfunction (Bank 1) | Toyota |
| 1 | P0013 | Exhaust Camshaft Position Actuator Solenoid Control Circuit (Bank 1) | Toyota |
| 1 | P0020 | Camshaft Position 'A' Actuator Circuit Malfunction (Bank 2) | Toyota |
| 1 | P0023 | Exhaust Camshaft Position Actuator Solenoid Control Circuit (Bank 2) | Toyota |
| 1 | P0087 | Fuel Rail Pressure Too Low | Mercedes-Benz |
| 1 | P0171 | Fuel System Lean (Bank 1) | Ford |
| 1 | P0174 | Fuel System Lean (Bank 2) | Ford |
| 1 | P0275 | Cylinder 5 Balance System Malfunction | Ford |
| 1 | P0301 | Cylinder 1 Misfire Detected | Chevrolet |
| 1 | P0302 | Cylinder 2 Misfire Detected | Mercedes-Benz |
| 1 | P0306 | Cylinder 6 Misfire Detected | Acura |
| 1 | P0327 | Knock Sensor Circuit Low Voltage (Bank 1) | Chevrolet |
| 1 | P0335 | Crankshaft Position Sensor Circuit Malfunction | Mitsubishi |
| 1 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | Ford |
| 1 | P0449 | EVAP Vent Solenoid Control Circuit Malfunction | GMC |
| 1 | P0451 | Fuel Tank Pressure Sensor Performance | Kia |
| 1 | P0453 | Fuel Tank Pressure Sensor Circuit High Voltage | Kia |
| 1 | P0476 | Exhaust Backpressure Regulator Malfunction (Self Test) | Ford |
| 1 | P052E | Engine vent system PCV | Mercedes-Benz |
| 1 | P0736 | Additional Gear Ratio Error In Reverse Gear | Dodge |
| 1 | P0870 | Overdrive Hydraulic Pressure Test | Audi |
| 1 | P1172 | Air Fuel Sensor (Bank 1 Sensor 1) Circuit Out-Of-Range High | Chevrolet |
| 1 | P130A | Cylinder Disabling | Audi |
| 1 | P1338 | Bank 1 cam position sensor short | Jaguar |
| 1 | P2066 | Secondary Fuel Sensor Signal Performance | Jaguar |
| 1 | P2127 | Accelerator Pedal Position Sensor 2 Circuit Low Voltage | Ram |
| 1 | P2138 | Accelerator Pedal Position Sensor 1-2 Correlation Error | Ram |
| 1 | P2197 | Air Fuel Ratio Sensor (Bank 2 Sensor 1) Signal Stuck "Lean" | Ford |
| 1 | P2227 | BARO Sensor Performance | Ford |
| 1 | P2258 | Secondary Air Injection System Control 'A' Circuit High | Ford |
| 1 | P2430 | Secondary Air Injection System Pressure Sensor Stuck In Range | Chevrolet |
| 1 | P2435 | Secondary AIR Pressure Sensor Circut BK 2 | Chevrolet |
| 1 | P2440 | Secondary Air Injection System Control/Shut-Off Valve Stuck Open | Chevrolet |
| 1 | P5240 | eop too low | Audi |
| 1 | U0100 | Lost Communication With ECM/PCM | Jeep |
| 1 | U0101 | Lost Communication With TCM | Dodge |
