Diagnostic Trouble Code Index for June 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 |
| 12 | P0300 | Multiple Cylinder Misfire Detected | Cadillac, Chevrolet, Dodge, Honda, Hyundai, Mercedes-Benz, Toyota |
| 8 | P0303 | Cylinder 3 Misfire Detected | Audi, Cadillac, Dodge, Ford, Honda, Hyundai, Mercedes-Benz |
| 4 | P0171 | Fuel System Lean (Bank 1) | BMW, Chevrolet, Ford, Mazda |
| 4 | P0174 | Fuel System Lean (Bank 2) | Chevrolet, Ford, Lexus, Mazda |
| 4 | P0301 | Cylinder 1 Misfire Detected | Dodge, Honda, Ram |
| 4 | P0304 | Cylinder 4 Misfire Detected | Audi, Cadillac, Honda, Toyota |
| 4 | P0305 | Cylinder 5 Misfire Detected | Audi, Hyundai, Land Rover |
| 2 | P0012 | Camshaft Position 'A' Over-Retarded (Bank 1) | Ford, Mazda |
| 2 | P0100 | Mass Airflow Sensor Circuit Malfunction | Jeep, Toyota |
| 2 | P0172 | Fuel System Rich (Bank 1) | Land Rover, Subaru |
| 2 | P0234 | Turbocharger Engine Overboost | Chevrolet, Ford |
| 2 | P0302 | Cylinder 2 Misfire Detected | Honda, Toyota |
| 2 | P0306 | Cylinder 6 Misfire Detected | Audi, Dodge |
| 2 | P0320 | No Crank Reference Signal To PCM | Ford |
| 2 | P0335 | Crankshaft Position Sensor Circuit Malfunction | Dodge, Jaguar |
| 2 | P0340 | Camshaft Position Sensor Circuit Malfunction | Dodge, Mazda |
| 2 | P0441 | EVAP Purge System Performance | Volkswagen |
| 2 | P0446 | EVAP Vent System Performance | Ford, Jaguar |
| 2 | P0456 | EVAP System Very Small Leak Detected | Jaguar, Porsche |
| 2 | P2188 | Fuel Trim System Rich At Idle (Bank 1) | Mazda |
| 1 | B2799 | Engine Immobilizer System Malfunction | Toyota |
| 1 | C1119 | reduced throttle | Mazda |
| 1 | C1130 | engine 1 fuel cut system fault | Nissan |
| 1 | C1442 | VDC interruption for engine convenience | Subaru |
| 1 | P0011 | Intake Camshaft Position System Performance | Nissan |
| 1 | P0021 | Camshaft Position 'A' Timing Over-Advanced / System Performance (Bank 2) | Nissan |
| 1 | P0028 | Intake Valve Solenoid Circuit Range/Performance (Bank 2) | Subaru |
| 1 | P0037 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Low Voltage | Dodge |
| 1 | P0051 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Low Voltage | Dodge |
| 1 | P0068 | Throttle Body Airflow Performance | Porsche |
| 1 | P0090 | Fuel Pressure Regulator 1 Control Circuit Malfunction | Chevrolet |
| 1 | P0101 | MAF Sensor Performance | Chevrolet |
| 1 | P0108 | MAP Sensor Circuit High Voltage | Dodge |
| 1 | P0113 | IAT Sensor Circuit High Voltage | Dodge |
| 1 | P0116 | ECT Sensor Performance | Volvo |
| 1 | P0118 | ECT Sensor Circuit High Voltage | Dodge |
| 1 | P0123 | TP Sensor Circuit High Voltage | Dodge |
| 1 | P0134 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Activity | GMC |
| 1 | P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage | Dodge |
| 1 | P0151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage | Chevrolet |
| 1 | P0152 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit High Voltage | Chevrolet |
| 1 | P0154 | Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Activity | Chevrolet |
| 1 | P0157 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage | Isuzu |
| 1 | P0158 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit High Voltage | Chevrolet |
| 1 | P0161 | Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction | Mitsubishi |
| 1 | P0175 | Fuel System Rich (Bank 2) | Land Rover |
| 1 | P0191 | Fuel Rail Pressure Sensor Performance | Ford |
| 1 | P0201 | Fuel Injector 1 Control Circuit Malfunction | Dodge |
| 1 | P0202 | Fuel Injector 2 Control Circuit Malfunction | Dodge |
| 1 | P0203 | Fuel Injector 3 Control Circuit Malfunction | Dodge |
| 1 | P0204 | Fuel Injector 4 Control Circuit Malfunction | Dodge |
| 1 | P0205 | Fuel Injector 5 Control Circuit Malfunction | Dodge |
| 1 | P0215 | Engine Shutoff Solenoid Control Circuit Malfunction | Dodge |
| 1 | P0216 | Injection Timing Control Circuit Malfunction | Dodge |
| 1 | P0230 | Fuel Pump Relay Control Circuit Malfunction | GMC |
| 1 | P0236 | Turbocharger Boost System Performance | Chevrolet |
| 1 | P023F | Fuel Pump Control Circuit Malfunction | Chevrolet |
| 1 | P0261 | Fuel Injector 1 Control Circuit Low Voltage | Ford |
| 1 | P0264 | Fuel Injector 2 Control Circuit Low Voltage | Ford |
| 1 | P0267 | Fuel Injector 3 Control Circuit Low Voltage | Ford |
| 1 | P0270 | Fuel Injector 4 Control Circuit Low Voltage | Ford |
| 1 | P0273 | Fuel Injector 5 Control Circuit Low Voltage | Ford |
| 1 | P0276 | Fuel Injector 6 Control Circuit Low Voltage | Ford |
| 1 | P0299 | Turbocharger Engine Underboost | Audi |
| 1 | P0308 | Cylinder 8 Misfire Detected | Ford |
| 1 | P0316 | Misfire Occurred In First 1,000 Revolutions | Land Rover |
| 1 | P0322 | Crankshaft Position Sensor Circuit No Signal | Volkswagen |
| 1 | P0365 | Exhaust Camshaft Position Sensor Circuit Malfunction | Jeep |
| 1 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | Volkswagen |
| 1 | P0430 | Catalyst System Low Efficiency (Bank 2) | Chevrolet |
| 1 | P0440 | General EVAP System Failure | Lexus |
| 1 | P0449 | EVAP Vent Solenoid Control Circuit Malfunction | Chevrolet |
| 1 | P0457 | Loose Fuel Cap | Ford |
| 1 | P0480 | Cooling Fan Relay 1 Control Circuit Malfunction | Ford |
| 1 | P0500 | Vehicle Speed Sensor Circuit Malfunction | Jaguar |
| 1 | P0505 | Idle Control System Malfunction | Toyota |
| 1 | P0521 | Engine Oil Pressure Sensor Performance | Chevrolet |
| 1 | P0535 | A/C Evaporator Temperature Sensor Circuit Malfunction | Cadillac |
| 1 | P0601 | Control Module Read Only Memory | Ford |
| 1 | P0660 | Manifold Tune Valve Solenoid Circuit Malfunction | Mitsubishi |
| 1 | P0688 | ASD Relay Sense Circuit Low | Dodge |
| 1 | P0700 | Automatic Transmission System Malfunction Detected | Dodge |
| 1 | P0850 | Park Neutral Switch Performance | Cadillac |
| 1 | P1000 | OBD II Monitor Testing No Completed | Ford |
| 1 | P1016 | Ignition Coil 1 Output Stage Circuit / Open | Ford |
| 1 | P1096 | Tumble Generator Valve Signal 2 Circuit Malfunction Open | Subaru |
| 1 | P1110 | Atmospheric Pressure Sensor Low Voltage | Nissan |
| 1 | P1153 | Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching | Chevrolet |
| 1 | P1157 | Air Fuel Sensor (Bank 1 Sensor 1) AFS Line High Voltage | Honda |
| 1 | P1189 | Engine Oil Pressure Switch Circuit Malfunction | Mercedes-Benz |
| 1 | P1215 | AF ECM Output Circuit Malfunction | Mercedes-Benz |
| 1 | P1449 | Canister Drive Cut Valve Circuit Malfunction | Subaru |
| 1 | P1672 | Low Oil Level Lamp Control Circuit Malfunction | Porsche |
| 1 | P1690 | SMARTA - No Response | Dodge |
| 1 | P1693 | Transponder No Response Error / Invalid Response | Dodge |
| 1 | P1775 | Solenoid Switch Latched In TCC Position | Jaguar |
| 1 | P2076 | Intake Manifold Tuning Valve Position Sensor Performance | Chevrolet |
| 1 | P2097 | Downstream Fuel System Rich - HO2S-12 (Bank 1 Sensor 2) | Chevrolet |
| 1 | P2101 | Control Module Throttle Actuator Position Performance | Nissan |
| 1 | P2104 | ETC System Malfunction - Forced Idle | Ford |
| 1 | P2105 | Throttle Actuator Control System - Forced Engine Shutdown | Ford |
| 1 | P2106 | Electronic Throttle Control System - Forced Limited Power | Ford |
| 1 | P2110 | Electronic Throttle Control - Forced Limited RPM | Ford |
| 1 | P213A | EGR Airflow Throttle Control Valve Circuit 'B' Open | Mercedes-Benz |
| 1 | P2178 | Fuel Trim System Rich At Cruise or Acceleration (Bank 1) | Mazda |
| 1 | P2187 | Fuel Trim System Lean At Idle (Bank 1) | Mazda |
| 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 | P219F | Cylinder 4 air fuel ratio imbalance | Audi |
| 1 | P2407 | EVAP Leak Detection Pump Sense Circuit Intermittent/Erratic | Mazda |
| 1 | P2442 | Secondary AIR System Switching Valve Stuck Open (Bank 2) | Toyota |
| 1 | P2504 | Charging System Voltage High | Dodge |
| 1 | P2601 | Coolant Pump Control Circuit Performance | Cadillac |
| 1 | P2638 | Torque Management Feedback Signal Performance | Dodge |
| 1 | P601D | internal control module maf performance | Ford |
| 1 | U0100 | Lost Communication With ECM/PCM | Dodge |
| 1 | U0121 | Lost Communication With Antilock Brake System Module | Jeep |
| 1 | U0164 | Lost Communication With HVAC Control Module | Dodge |
| 1 | U0212 | lost communication | Dodge |
| 1 | U0416 | invalid communication | Dodge |
| 1 | U110B | Lost Engine Coolant Message | Dodge |
| 1 | U1402 | Implausible Engine Temperature Signal Received | Dodge |
| 1 | U1900 | CAN System Communication Error | Mazda |
| 1 | U2516 | CAN System Wiring Harness Open Or Shorted | Mazda |
