Diagnostic Trouble Code Index for July 2018
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 | GMC, Honda, Toyota |
| 4 | P0303 | Cylinder 3 Misfire Detected | Acura, Honda, Ram, Toyota |
| 3 | P0068 | Throttle Body Airflow Performance | Cadillac, Chevrolet, Porsche |
| 3 | P0171 | Fuel System Lean (Bank 1) | Ford, Jeep, Ram |
| 3 | P0301 | Cylinder 1 Misfire Detected | Acura, Honda, Toyota |
| 3 | P0302 | Cylinder 2 Misfire Detected | Acura, Honda, Toyota |
| 2 | P0017 | Crankshaft Position - Exhaust Camshaft Position Correlation | Chevrolet, Mercedes-Benz |
| 2 | P0088 | Fuel Rail Pressure Too High | Ford, Volvo |
| 2 | P0172 | Fuel System Rich (Bank 1) | Honda, Mercedes-Benz |
| 2 | P0175 | Fuel System Rich (Bank 2) | Honda, Mercedes-Benz |
| 2 | P0281 | Cylinder 7 Balance System Malfunction | Ford |
| 2 | P0304 | Cylinder 4 Misfire Detected | Acura, Honda |
| 2 | P0340 | Camshaft Position Sensor Circuit Malfunction | Ford, Nissan |
| 2 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | Toyota, Volkswagen |
| 2 | P0443 | EVAP Purge Solenoid Control Circuit Malfunction | Ford, Jeep |
| 2 | P0688 | ASD Relay Sense Circuit Low | Jeep |
| 2 | P1000 | OBD II Monitor Testing No Completed | Ford |
| 2 | U010C | Lost Communication With Turbocharger / Supercharger Control Module | Ram |
| 1 | P0011 | Intake Camshaft Position System Performance | Nissan |
| 1 | P0016 | Crankshaft/Camshaft Timing Misalignment | Ford |
| 1 | P0018 | Crankshaft Position - Intake Camshaft Position Correlation (Bank 2) | Ford |
| 1 | P0024 | Exhaust Camshaft Position System Performance (Bank 2) | Toyota |
| 1 | P0055 | Heated Oxygen Sensor (Bank 1 Sensor 3) Heater Resistance | Chevrolet |
| 1 | P0089 | Fuel Pressure Regulator Performance | Chevrolet |
| 1 | P0122 | TP Sensor Circuit Low Voltage | Honda |
| 1 | P0128 | Engine Coolant Temperature Below Thermostat Regulating Temperature | Honda |
| 1 | P0134 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Activity | Chevrolet |
| 1 | P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | Ford |
| 1 | P0155 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction | Ford |
| 1 | P0174 | Fuel System Lean (Bank 2) | Jeep |
| 1 | P018C | fuel rail temp sensor | Ford |
| 1 | P0263 | Cylinder 1 Balance System Malfunction | Ford |
| 1 | P0269 | Cylinder 3 Balance System Malfunction | Ford |
| 1 | P0275 | Cylinder 5 Balance System Malfunction | Ford |
| 1 | P0299 | Turbocharger Engine Underboost | Volkswagen |
| 1 | P0305 | Cylinder 5 Misfire Detected | GMC |
| 1 | P0306 | Cylinder 6 Misfire Detected | Acura |
| 1 | P0320 | No Crank Reference Signal To PCM | Hyundai |
| 1 | P0336 | Crankshaft Position Sensor Performance | Chevrolet |
| 1 | P0355 | Ignition Coil 5 Control Circuit Malfunction | Ford |
| 1 | P0442 | EVAP System Small Leak Detected | Toyota |
| 1 | P0455 | EVAP System Large Leak Detected | Dodge |
| 1 | P0470 | Exhaust Backpressure Sensor Circuit Malfunction | Ford |
| 1 | P0481 | Cooling Fan Relay 2 Control Circuit Malfunction | Jeep |
| 1 | P0499 | NVLD Canister Vent Solenoid Circuit High Voltage | Jeep |
| 1 | P0622 | Generator F-Terminal Circuit Malfunction | Jeep |
| 1 | P0890 | Switched Battery | Volvo |
| 1 | P1005 | Manifold Tuning Valve Solenoid Control Performance | Dodge |
| 1 | P1075 | Manifold Flow Valve Circuit / Open | Porsche |
| 1 | P1101 | Intake Airflow System Performance | Cadillac |
| 1 | P1171 | Fuel System Lean During Acceleration | Volkswagen |
| 1 | P1176 | Electronic Throttle System Motor No. 1 Open or Shorted | Volkswagen |
| 1 | P1299 | Vacuum Leak Present With IAC Valve Fully Seated | Ford |
| 1 | P1388 | Auto Shutdown Relay Control Circuit Malfunction | Jeep |
| 1 | P1457 | EVAP System Leak Detected (Canister Area) | Honda |
| 1 | P1542 | Climate Control Unit Signal Circuit High Voltage | Volkswagen |
| 1 | P1545 | Air Conditioning Clutch Relay Control Circuit Malfunction | Volkswagen |
| 1 | P1564 | ASCD Steering Switch Circuit Malfunction | Volkswagen |
| 1 | P1623 | Code Word or Key ID Number Read/Write Error in the PCM | Audi |
| 1 | P1649 | ABS Operation Signal Circuit Malfunction | Audi |
| 1 | P1926 | Can communication is faulty | Dodge |
| 1 | P1A6F | Starter/Generator System - No Crank At Restart | Hyundai |
| 1 | P2097 | Downstream Fuel System Rich - HO2S-12 (Bank 1 Sensor 2) | Nissan |
| 1 | P2176 | Minimum Throttle Position Not Learned | Acura |
| 1 | P2199 | Intake Air Temperature Sensor 1-2 Correlation | Dodge |
| 1 | P219A | Bank 1 Air/Fuel Ratio Imbalance | GMC |
| 1 | P2355 | Exhaust Gas Recirculation Control Air Mass Too Large | Dodge |
| 1 | P2359 | Boost Pressure Sensor Voltage Too Low | Dodge |
| 1 | P2511 | EGR Valve Signal Circuit Short To Ground | Dodge |
| 1 | P2626 | Heated Oxygen Sensor (Bank 1 Sensor 1) Pumping Current Trim Circuit | Ford |
| 1 | P3001 | HV Battery ECU Malfunction | Dodge |
| 1 | P3068 | cylinder 6 misfire | Mercedes-Benz |
| 1 | P3999 | unknown | Land Rover |
| 1 | U0100 | Lost Communication With ECM/PCM | Land Rover |
| 1 | U010E | Reductant module lost comm | Ram |
| 1 | U0121 | Lost Communication With Antilock Brake System Module | Jeep |
| 1 | U029D | Nox module a lost comm | Ram |
| 1 | U029E | Nox module b lost comm | Ram |
| 1 | U1000 | Class 2 Communication Malfunction | Nissan |
| 1 | U1016 | Serial Communications Malfunction | GMC |
| 1 | U1096 | Loss of Communication With Instrument Panel Cluster | GMC |
| 1 | U1120 | Lost Wheel Distance Message | Jeep |
| 1 | U1300 | Class 2 Data Line Short To Ground | GMC |
