Diagnostic Trouble Code Index for April 2009
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 |
| 44 | P0300 | Multiple Cylinder Misfire Detected | Acura, Audi, Cadillac, Chevrolet, Chrysler, Dodge, Ford, Honda, Infiniti, Kia, Lexus, Mazda, Mercedes-Benz, Nissan, Oldsmobile, Plymouth, Pontiac, Toyota, Volkswagen, Volvo |
| 25 | P0171 | Fuel System Lean (Bank 1) | Audi, BMW, Chevrolet, Dodge, Ford, Infiniti, Jaguar, Lexus, Lincoln, Mercury, Oldsmobile, Toyota, Volkswagen |
| 16 | P0340 | Camshaft Position Sensor Circuit Malfunction | Chevrolet, Chrysler, Dodge, Ford, GMC, Jaguar, Mercury, Nissan |
| 14 | P0174 | Fuel System Lean (Bank 2) | BMW, Chevrolet, Ford, Infiniti, Lincoln, Toyota |
| 14 | P0304 | Cylinder 4 Misfire Detected | Acura, Chevrolet, Dodge, Ford, Honda, Kia, Mazda, Mercedes-Benz, Volkswagen |
| 12 | P0301 | Cylinder 1 Misfire Detected | Acura, Cadillac, Chevrolet, Chrysler, Ford, Honda, Hummer, Kia, Mazda, Mercedes-Benz, Toyota |
| 11 | P0302 | Cylinder 2 Misfire Detected | Acura, Ford, GMC, Honda, Kia, Mazda, Mercedes-Benz, Subaru, Volkswagen, Volvo |
| 11 | P0303 | Cylinder 3 Misfire Detected | Audi, Cadillac, Chrysler, Ford, Infiniti, Mazda, Mercedes-Benz, Subaru, Volvo |
| 10 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | Chevrolet, Ford, GMC, Nissan, Subaru, Toyota, Volkswagen |
| 8 | P0305 | Cylinder 5 Misfire Detected | Acura, Cadillac, Dodge, Ford, Mercedes-Benz, Volvo |
| 7 | P0306 | Cylinder 6 Misfire Detected | Audi, Ford, Isuzu, Jaguar, Mercedes-Benz, Plymouth |
| 6 | P0335 | Crankshaft Position Sensor Circuit Malfunction | Chevrolet, Hyundai, Nissan |
| 5 | P0155 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction | BMW, Cadillac, Chevrolet, Ford |
| 4 | P0021 | Camshaft Position 'A' Timing Over-Advanced / System Performance (Bank 2) | Ford, Volkswagen |
| 4 | P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | Ford, Pontiac, Toyota |
| 4 | P0151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage | Chevrolet, Ford |
| 4 | P0172 | Fuel System Rich (Bank 1) | Chrysler, Ford, Infiniti, Volvo |
| 4 | P0261 | Fuel Injector 1 Control Circuit Low Voltage | Ford |
| 4 | P0316 | Misfire Occurred In First 1,000 Revolutions | Ford |
| 4 | P0325 | Knock Sensor Circuit Malfunction | Lexus, Mercury, Nissan |
| 4 | P0341 | CMP Sensor Performance | Chevrolet, Dodge, Honda, Saturn |
| 4 | P0351 | Ignition Coil 1 Control Circuit Malfunction | Dodge, Ford, Mercury |
| 4 | P0441 | EVAP Purge System Performance | Chrysler, Lexus, Toyota |
| 4 | P0455 | EVAP System Large Leak Detected | Dodge, Ford, Mini, Volkswagen |
| 4 | P0507 | Idle Speed High | Audi, Chevrolet, Honda |
| 4 | P1320 | Igniter 5 Circuit Malfunction | Lexus, Mercury |
| 3 | P0011 | Intake Camshaft Position System Performance | Ford |
| 3 | P0102 | MAF Sensor Circuit Low Frequency | Audi, Chevrolet, Pontiac |
| 3 | P0153 | Heated Oxygen Sensor (Bank 2 Sensor 1) Slow Response | Audi, Ford |
| 3 | P0191 | Fuel Rail Pressure Sensor Performance | Dodge, Ford |
| 3 | P0410 | Secondary Air System Performance | Chevrolet, Oldsmobile, Saturn |
| 3 | P0430 | Catalyst System Low Efficiency (Bank 2) | Chevrolet, Ford, Nissan |
| 3 | P0442 | EVAP System Small Leak Detected | Dodge, Saturn |
| 3 | P0443 | EVAP Purge Solenoid Control Circuit Malfunction | Chevrolet, Ford, Jeep |
| 3 | P0456 | EVAP System Very Small Leak Detected | Chrysler, Mini, Volvo |
| 3 | P0491 | Secondary AIR System Insufficient Flow Detected (Bank 1) | BMW, Dodge |
| 3 | P0500 | Vehicle Speed Sensor Circuit Malfunction | Ford, Infiniti, Toyota |
| 3 | P0505 | Idle Control System Malfunction | Honda, Mitsubishi, Nissan |
| 3 | P1300 | Igniter 1 Circuit Malfunction | Lexus |
| 3 | P1305 | Igniter 2 Circuit Malfunction | Lexus, Toyota |
| 3 | P1315 | Igniter 4 Circuit Malfunction | Lexus |
| 3 | P1349 | Variable Valve Timing System (Bank 1) | Toyota |
| 3 | P1391 | CKP Or CMP Sensor Signal Intermittent | Chrysler, Dodge |
| 3 | P2004 | Intake Manifold Runner Control Stuck Open | Ford, Mercedes-Benz |
| 2 | P0016 | Crankshaft/Camshaft Timing Misalignment | Chevrolet, Chrysler |
| 2 | P0123 | TP Sensor Circuit High Voltage | Dodge, Volvo |
| 2 | P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage | Chevrolet |
| 2 | P0133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response | Buick, Chevrolet |
| 2 | P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage | Dodge, Volkswagen |
| 2 | P0270 | Fuel Injector 4 Control Circuit Low Voltage | Ford |
| 2 | P0276 | Fuel Injector 6 Control Circuit Low Voltage | Ford |
| 2 | P0328 | Knock Sensor Circuit High Voltage (Bank 1) | Nissan, Toyota |
| 2 | P0345 | Camshaft Position Sensor 'A' Circuit Malfunction (Bank 2) | Ford |
| 2 | P0355 | Ignition Coil 5 Control Circuit Malfunction | Ford |
| 2 | P0380 | Glow Plug Feedback Circuit | Chevrolet, Mercedes-Benz |
| 2 | P0400 | EGR System Recirculation Flow | Mazda, Suzuki |
| 2 | P0401 | Insufficient EGR Flow Detected | Ford, Lexus |
| 2 | P0402 | Excessive EGR Flow Detected | Mercedes-Benz, Nissan |
| 2 | P0403 | EGR Solenoid Control Circuit Malfunction | Chrysler, Ford |
| 2 | P0606 | Control Module Internal Performance | Dodge, Ford |
| 2 | P061B | Internal Control Module Torque Calculation Performance | Ford |
| 2 | P1111 | IAT Sensor Circuit Intermittent High Voltage | Audi, Infiniti |
| 2 | P1131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Indicates A/F Ratio Too Lean | Ford, Mazda |
| 2 | P1212 | ABS/TCS Control Unit Malfunction | Ford |
| 2 | P1310 | Igniter 3 Circuit Malfunction | Lexus |
| 2 | P1325 | Igniter 6 Circuit Malfunction | Lexus |
| 2 | P1383 | Variable Cam Timing Over-Retarded (Cylinder Bank 1) | Jaguar, Land Rover |
| 2 | P1544 | Exhaust Gas Temperature Too High | Subaru, Volkswagen |
| 2 | P1565 | Speed Control Command Switch Out-Of-Range High | Volkswagen |
| 2 | P1626 | Theft Deterrent Fuel Enable Signal Lost | Chevrolet, Ford |
| 2 | P2104 | ETC System Malfunction - Forced Idle | Ford |
| 2 | P2111 | Electronic Throttle Control - Unable To Close | Ford |
| 2 | P2112 | Electronic Throttle Control - Unable To Open | Ford |
| 2 | P2181 | Cooling System Performance | Volkswagen |
| 2 | U0100 | Lost Communication With ECM/PCM | Ford, Mazda |
| 2 | U1000 | Class 2 Communication Malfunction | GMC, Pontiac |
| 1 | B1001 | option configuration error | Saturn |
| 1 | B1306 | LVL SWT ckt open | Ford |
| 1 | B1361 | Ign. run/acc ckt short -B | Ford |
| 1 | B1365 | Ign. start ckt short - B | Ford |
| 1 | B2960 | Security system sensor data incorrect but valid | Chevrolet |
| 1 | B2965 | key in ignition fault | Chevrolet |
| 1 | C0236 | rear wheel speed sensor circuit | GMC |
| 1 | C0237 | rear wheel speed sensor circuit fault | GMC |
| 1 | C0267 | pump motor circuit relay | GMC |
| 1 | P0012 | Camshaft Position 'A' Over-Retarded (Bank 1) | Ford |
| 1 | P0014 | Exhaust Camshaft Position System Performance | Chevrolet |
| 1 | P0018 | Crankshaft Position - Intake Camshaft Position Correlation (Bank 2) | Volkswagen |
| 1 | P0020 | Camshaft Position 'A' Actuator Circuit Malfunction (Bank 2) | Ford |
| 1 | P0022 | Camshaft Position 'A' Timing Over-Retarded (Bank 2) | Ford |
| 1 | P0030 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Control Circuit Malfunction | Audi |
| 1 | P0037 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Low Voltage | Volkswagen |
| 1 | P0060 | Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Resistance | Ford |
| 1 | P0093 | Fuel System Large Leak Detected | Chevrolet |
| 1 | P0100 | Mass Airflow Sensor Circuit Malfunction | Nissan |
| 1 | P0101 | MAF Sensor Performance | Chevrolet |
| 1 | P0103 | MAF Sensor Circuit High Frequency | Volkswagen |
| 1 | P0106 | MAP Sensor Performance | Volkswagen |
| 1 | P0107 | MAP Sensor Circuit Low Voltage | Dodge |
| 1 | P0108 | MAP Sensor Circuit High Voltage | Lincoln |
| 1 | P0113 | IAT Sensor Circuit High Voltage | Dodge |
| 1 | P0118 | ECT Sensor Circuit High Voltage | Ford |
| 1 | P0120 | TP Sensor 1 Signal Circuit Malfunction | Volvo |
| 1 | P0121 | TP Sensor Performance | Dodge |
| 1 | P0128 | Engine Coolant Temperature Below Thermostat Regulating Temperature | GMC |
| 1 | P0130 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Malfunction | Subaru |
| 1 | P0139 | Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response | Volkswagen |
| 1 | P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction | Volkswagen |
| 1 | P0152 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit High Voltage | Dodge |
| 1 | P0160 | Heated Oxygen Sensor (Bank 2 Sensor 2) Insufficient Activity | Chevrolet |
| 1 | P0170 | Fuel Trim Lean Or Rich (Bank 1) | Toyota |
| 1 | P0175 | Fuel System Rich (Bank 2) | Dodge |
| 1 | P0193 | Fuel Rail Pressure Sensor Circuit High Voltage | Ford |
| 1 | P0218 | Transmission Fluid Over-Temperature | Isuzu |
| 1 | P0221 | Throttle Position Sensor 2 Performance | Nissan |
| 1 | P0236 | Turbocharger Boost System Performance | Volvo |
| 1 | P0237 | Turbocharger Boost Sensor Circuit Low Voltage | Volvo |
| 1 | P0264 | Fuel Injector 2 Control Circuit Low Voltage | Ford |
| 1 | P0267 | Fuel Injector 3 Control Circuit Low Voltage | Ford |
| 1 | P0272 | Cylinder 4 Balance System Malfunction | Ford |
| 1 | P0273 | Fuel Injector 5 Control Circuit Low Voltage | Ford |
| 1 | P0279 | Cylinder 7 Injector Circuit Low | Ford |
| 1 | P0307 | Cylinder 7 Misfire Detected | Dodge |
| 1 | P0313 | Misfire Detected With Low Fuel | BMW |
| 1 | P0315 | Crankshaft Position Sensor Variation Not Learned | Chevrolet |
| 1 | P0321 | Crankshaft Position Sensor Circuit Range/Performance | Chevrolet |
| 1 | P0327 | Knock Sensor Circuit Low Voltage (Bank 1) | Toyota |
| 1 | P0330 | Knock Sensor 2 Circuit Malfunction | Lexus |
| 1 | P0332 | Knock Sensor Circuit Low Frequency (Bank 2) | Chevrolet |
| 1 | P0336 | Crankshaft Position Sensor Performance | Buick |
| 1 | P0342 | CMP Sensor Circuit Low Voltage | Chrysler |
| 1 | P0353 | Ignition Coil 3 Control Circuit Malfunction | Ford |
| 1 | P0354 | Ignition Coil 4 Control Circuit Malfunction | Ford |
| 1 | P0356 | Ignition Coil 6 Control Circuit Malfunction | Chevrolet |
| 1 | P0388 | Crankshaft Position Sensor Supply Voltage Too High | Dodge |
| 1 | P0395 | cylinder 5 missfire detected | Ford |
| 1 | P0404 | EGR Open Position Performance | Ford |
| 1 | P0411 | Secondary AIR System Incorrect Airflow Detected | Audi |
| 1 | P0431 | Warmup Catalyst Efficiency Low (Bank 2) | Audi |
| 1 | P0440 | General EVAP System Failure | Chrysler |
| 1 | P0446 | EVAP Vent System Performance | Toyota |
| 1 | P0447 | EVAP Canister Vent Control Valve Open | Jaguar |
| 1 | P0450 | EVAP Vapor Pressure Sensor Circuit Malfunction | Toyota |
| 1 | P0451 | Fuel Tank Pressure Sensor Performance | Ford |
| 1 | P0452 | Fuel Tank Pressure Sensor Circuit Low Voltage | GMC |
| 1 | P0453 | Fuel Tank Pressure Sensor Circuit High Voltage | Saturn |
| 1 | P0460 | Fuel Level Sensing Unit No Change Over Miles | Kia |
| 1 | P0487 | EGR Airflow Throttle Control Circuit 'A' Open | Ford |
| 1 | P0492 | Secondary air flow bank 2 | BMW |
| 1 | P0502 | VSS Circuit Low Input | GMC |
| 1 | P0506 | Idle Speed Low | Chevrolet |
| 1 | P0533 | A/C Refrigerant Pressure Sensor Circuit High Voltage | Saturn |
| 1 | P0550 | Power Steering Pressure Sensor Circuit Malfunction | Chevrolet |
| 1 | P0563 | System Voltage Too High | Dodge |
| 1 | P0601 | Control Module Read Only Memory | Dodge |
| 1 | P0671 | Glow Plug No. 1 Control Circuit Malfunction | Ford |
| 1 | P0706 | Transmission Range Switch Circuit Malfunction | Buick |
| 1 | P0731 | Gear Ratio Error In First | Infiniti |
| 1 | P0732 | Gear Ratio Error In Second | Infiniti |
| 1 | P0733 | Gear Ratio Error In Third | Infiniti |
| 1 | P0740 | TCC Solenoid Circuit Malfunction | Ford |
| 1 | P1000 | OBD II Monitor Testing No Completed | Ford |
| 1 | P1028 | Fuel Injector 8 Circuit Malfunction | BMW |
| 1 | P1100 | Starter Switch Circuit Low Input | Ford |
| 1 | P1133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching | Isuzu |
| 1 | P1136 | Intake Valve Timing Control Circuit Malfunction (Bank 2) | Audi |
| 1 | P115A | Low Fuel Level - Forced Limited Power | Ford |
| 1 | P1189 | Engine Oil Pressure Switch Circuit Malfunction | Pontiac |
| 1 | P1195 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Insufficient Activity | Mazda |
| 1 | P1200 | Fuel Injector Circuit Malfunction | Ferrari |
| 1 | P1211 | ABS/TCS Control Unit Malfunction | Ford |
| 1 | P1216 | Fuel Solenoid Response Time Too Short | Chevrolet |
| 1 | P1233 | Fuel System Disabled Or Offline | Ford |
| 1 | P1259 | VTEC System Malfunction (Bank 1) | Honda |
| 1 | P1283 | Air Fuel Sensor (Bank 2 Sensor 1) Lean Shift Monitoring | Saturn |
| 1 | P1296 | 5-Volt VREF Supply Not Present | Volkswagen |
| 1 | P1297 | No Change In MAP Signal From Start To Run Transition | Audi |
| 1 | P1298 | Electrical Load Detector Circuit High Voltage | Ford |
| 1 | P1309 | Misfire Detection Monitor | Mercury |
| 1 | P1336 | CKP Sensor System Variation Not Learned | Nissan |
| 1 | P1338 | Bank 1 cam position sensor short | Volkswagen |
| 1 | P1345 | Camshaft To Crankshaft Position Correlation | Mazda |
| 1 | P1361 | ICM Ignition Control Circuit Low Voltage | Buick |
| 1 | P1362 | ICM Control Circuit High Voltage | Buick |
| 1 | P1372 | PCM Segment Time Acquisition Incorrect | Hyundai |
| 1 | P1379 | System Voltage Out Of Self-Test Range | Ford |
| 1 | P1388 | Auto Shutdown Relay Control Circuit Malfunction | Jaguar |
| 1 | P1402 | EGR System Malfunction Detected (Open) | Mazda |
| 1 | P1404 | EGR Valve Closed Position Performance | Isuzu |
| 1 | P1409 | EGR Vacuum Regulator Solenoid Circuit Malfunction | Mazda |
| 1 | P1416 | Secondary Air Injection System (Bank 2) | Pontiac |
| 1 | P1426 | Manufacturer Auxiliary Emission Control | Volkswagen |
| 1 | P1441 | EVAP System Flow During Non-Purge Conditions | Chevrolet |
| 1 | P1469 | Low A/C Cycling Period | Lincoln |
| 1 | P1476 | High Fan Relay Control Circuit Malfunction | Volkswagen |
| 1 | P1479 | High Fan Control / Fan Control 3 Primary Circuit Malfunction | Audi |
| 1 | P1494 | EVAP Leak Detection Pump Switch Or Mechanical Fault | Chrysler |
| 1 | P1518 | Throttle Actuator Control Module Serial Data Malfunction | Chevrolet |
| 1 | P1580 | Battery Current Sensor Circuit Malfunction | Volkswagen |
| 1 | P1582 | Electronic Throttle Monitor Data Available | Volkswagen |
| 1 | P1602 | Powertrain Control Module Not Programmed | Audi |
| 1 | P1638 | Generator 'F' Terminal Circuit Malfunction | GMC |
| 1 | P1656 | Wastegate Solenoid Control Circuit Malfunction | Toyota |
| 1 | P1686 | No SKIM Bus Messages Received | Dodge |
| 1 | P1689 | Traction Control Delivered Torque Output Circuit Malfunction | Dodge |
| 1 | P1695 | No CCD Messages Received From BCM | Chrysler |
| 1 | P1780 | Park/Neutral Position Switch Circuit Malfunction | Toyota |
| 1 | P2013 | Intake Manifold Runner Control Circuit High (Bank 2) | Mercedes-Benz |
| 1 | P2029 | Intake Air Temperature Sensor Performance | Mercedes-Benz |
| 1 | P202C | Communication Error | Mercedes-Benz |
| 1 | P2053 | Misfire 3 | Mercedes-Benz |
| 1 | P2054 | Engine Coolant Temperature Sensor Circuit Signal Voltage Too Low | Mercedes-Benz |
| 1 | P2056 | cyl 5 misfire | Mercedes-Benz |
| 1 | P2074 | Manifold Pressure/Throttle Position Correlation - High Flow/Vacuum Leak | Chrysler |
| 1 | P2097 | Downstream Fuel System Rich - HO2S-12 (Bank 1 Sensor 2) | Subaru |
| 1 | P2135 | Throttle Position Sensor 1-2 Correlation Error | Ford |
| 1 | P2138 | Accelerator Pedal Position Sensor 1-2 Correlation Error | Cadillac |
| 1 | P2176 | Minimum Throttle Position Not Learned | Honda |
| 1 | P2188 | Fuel Trim System Rich At Idle (Bank 1) | Cadillac |
| 1 | P2190 | Fuel Trim System Rich At Idle (Bank 2) | Cadillac |
| 1 | P2196 | Heated Oxygen Sensor (Bank 1 Sensor 1) Stuck Rich | Ford |
| 1 | P2291 | Injector Control Pressure Too Low - Engine Cranking | Ford |
| 1 | P2401 | EVAP Leak Detection Pump Control Circuit Low | Hyundai |
| 1 | P2419 | EVAP Switching Valve Control Circuit Low | Hyundai |
| 1 | P2544 | Transmission Torque Request Circuit Malfunction | Ford |
| 1 | P5286 | Fan VDF Harness | Ford |
| 1 | U0121 | Lost Communication With Antilock Brake System Module | Mazda |
| 1 | U0155 | No Cluster Bus Message | Ford |
| 1 | U1009 | First letter in code U. SCP inval/miss eng.torq. data | Ford |
| 1 | U1016 | Serial Communications Malfunction | GMC |
| 1 | U1059 | Egr insufficient flow | Ford |
| 1 | U1262 | Data Circuit Malfunction | Ford |
| 1 | U1900 | CAN System Communication Error | Mazda |
| 1 | U1950 | only code in entire system | Ford |
| 1 | U2226 | vsm | Ford |
| 1 | U3E22 | unknown | Land Rover |
