Diagnostic Trouble Code Index for December 2019
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 |
| 7 | P0171 | Fuel System Lean (Bank 1) | BMW, Cadillac, Chevrolet, Jaguar, Nissan, Toyota |
| 6 | P0300 | Multiple Cylinder Misfire Detected | Chevrolet, Ford, GMC, Mercedes-Benz, Nissan |
| 4 | P0303 | Cylinder 3 Misfire Detected | GMC, Kia, Ram, Subaru |
| 4 | P0305 | Cylinder 5 Misfire Detected | BMW, GMC, Kia, Toyota |
| 2 | P0017 | Crankshaft Position - Exhaust Camshaft Position Correlation | Chevrolet, GMC |
| 2 | P0030 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Control Circuit Malfunction | Buick, Mercedes-Benz |
| 2 | P0087 | Fuel Rail Pressure Too Low | Audi, Kia |
| 2 | P0174 | Fuel System Lean (Bank 2) | BMW, Jaguar |
| 2 | P0191 | Fuel Rail Pressure Sensor Performance | Kia, Mercury |
| 2 | P0301 | Cylinder 1 Misfire Detected | GMC, Subaru |
| 2 | P0401 | Insufficient EGR Flow Detected | Ford, Honda |
| 2 | P132B | Turbocharger Boost Control A Performance | Ford |
| 2 | P2135 | Throttle Position Sensor 1-2 Correlation Error | Chevrolet, Ford |
| 2 | U0073 | Control Module Communication Bus Off | Chevrolet, Toyota |
| 2 | U0101 | Lost Communication With TCM | Chevrolet, GMC |
| 1 | B1005 | Micu lost comm w/relay control unit | Acura |
| 1 | B1006 | Acura | |
| 1 | B1007 | Micu lost comm w/headlight switch | Acura |
| 1 | B1008 | Micu lost comm w/ guage module a/t message | Acura |
| 1 | B1010 | Micu lost comm w/ door multiplex cu | Acura |
| 1 | B1011 | Micu lost comm with guage control module | Acura |
| 1 | C0055 | Invalid data received from EBCM | GMC |
| 1 | C1203 | ecm communication circuit malfunction | Toyota |
| 1 | C1259 | HV control system regen. malfunction | Lexus |
| 1 | C1310 | can communication code | Lexus |
| 1 | P0012 | Camshaft Position 'A' Over-Retarded (Bank 1) | Ford |
| 1 | P0022 | Camshaft Position 'A' Timing Over-Retarded (Bank 2) | Ford |
| 1 | P0069 | Abnormal Correlation Between MAP And BARO Sensor | Ford |
| 1 | P0088 | Fuel Rail Pressure Too High | Ram |
| 1 | P0097 | Intake Air Temperature Sensor 2 Circuit Low Voltage | Ford |
| 1 | P0101 | MAF Sensor Performance | Dodge |
| 1 | P0110 | Intake Air Temperature Sensor Circuit Malfunction | Ford |
| 1 | P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage | Mercedes-Benz |
| 1 | P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | Mercedes-Benz |
| 1 | P0159 | Heated Oxygen Sensor (Bank 2 Sensor 2) Slow Response | Jeep |
| 1 | P0170 | Fuel Trim Lean Or Rich (Bank 1) | Kia |
| 1 | P0172 | Fuel System Rich (Bank 1) | Pontiac |
| 1 | P0175 | Fuel System Rich (Bank 2) | Ford |
| 1 | P0180 | Fuel Tank Temperature Sensor Circuit Malfunction | Ford |
| 1 | P0193 | Fuel Rail Pressure Sensor Circuit High Voltage | Jaguar |
| 1 | P0210 | Fuel Injector 10 Control Circuit Malfunction | Ford |
| 1 | P0251 | Injection Pump Camshaft System | Dodge |
| 1 | P0299 | Turbocharger Engine Underboost | Volkswagen |
| 1 | P0302 | Cylinder 2 Misfire Detected | Subaru |
| 1 | P0304 | Cylinder 4 Misfire Detected | Subaru |
| 1 | P0339 | Crankshaft Position Sensor Signal Intermittent | Dodge |
| 1 | P0400 | EGR System Recirculation Flow | Subaru |
| 1 | P0410 | Secondary Air System Performance | Mercedes-Benz |
| 1 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | Ford |
| 1 | P0430 | Catalyst System Low Efficiency (Bank 2) | Ford |
| 1 | P0455 | EVAP System Large Leak Detected | Pontiac |
| 1 | P0460 | Fuel Level Sensing Unit No Change Over Miles | Ford |
| 1 | P0463 | Fuel Level Sensor High Voltage | Ford |
| 1 | P0491 | Secondary AIR System Insufficient Flow Detected (Bank 1) | BMW |
| 1 | P0507 | Idle Speed High | Audi |
| 1 | P0523 | Engine Oil Pressure Sensor Circuit High Voltage | Honda |
| 1 | P0540 | Intake Air Heater Feedback Circuit Malfunction | Chevrolet |
| 1 | P0700 | Automatic Transmission System Malfunction Detected | Chevrolet |
| 1 | P0A78 | Drive Motor 'B' Inverter Performance | Lexus |
| 1 | P1036 | Ignition Coil 5 Output Stage Circuit / Open | Isuzu |
| 1 | P1125 | Accelerator Pedal Position System Malfunction | Pontiac |
| 1 | P1136 | Intake Valve Timing Control Circuit Malfunction (Bank 2) | Audi |
| 1 | P1138 | Heated Oxygen Sensor (Bank 1 Sensor 2) High Voltage In Decel Fuel Cutoff | Audi |
| 1 | P117B | Fuel performance direct injector | Toyota |
| 1 | P2034 | Oxygen Sensor Circuit Calibration Value Too High Or Too Low | Mercedes-Benz |
| 1 | P2082 | Differential Pressure Sensor Defective Hose | Mercedes-Benz |
| 1 | P2090 | Camshaft Position Actuator Circuit Low (Bank 2) | Mercedes-Benz |
| 1 | P2096 | Downstream Fuel System Lean - HO2S-12 (Bank 1 Sensor 2) | Subaru |
| 1 | P2119 | Throttle Closed Position Performance | Saturn |
| 1 | P2138 | Accelerator Pedal Position Sensor 1-2 Correlation Error | Pontiac |
| 1 | P2149 | Injector Positive Voltage Relay Circuit Group 2 (Injectors 6 & 7) | GMC |
| 1 | P2177 | Fuel Trim System Lean At Cruise Or Acceleration (Bank 1) | Audi |
| 1 | P219A | Bank 1 air/fuel ratio imbalance | Ford |
| 1 | P2279 | Intake Air System Leak | Audi |
| 1 | P2308 | Ignition Coil 3 Secondary Circuit Insufficient Ionization | Ram |
| 1 | P2359 | Boost Pressure Sensor Voltage Too Low | Dodge |
| 1 | P2544 | Transmission Torque Request Circuit Malfunction | Chevrolet |
| 1 | P2A00 | Heated Oxygen Sensor (Bank 1 Sensor 1) Closed Loop Performance | Buick |
| 1 | U0140 | Lost Communication With BCM | GMC |
| 1 | U0293 | Lost Communication With HV/ECU | Toyota |
| 1 | U1210 | DVD-ROM Seek | Ford |
| 1 | U1424 | Implausible Engine Torque Signal Received | Ram |
| 1 | U1510 | Lost communication with restraint control module | Ford |
| 1 | U2120 | Lost communication with steering control module | Ford |
| 1 | U4018 | Invalid data received from ECM/PCM | Ford |
| 1 | U4298 | Invalid data received from steering control module | Ford |
