Diagnostic Trouble Code Index for April 2011
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 |
| 26 | P0300 | Multiple Cylinder Misfire Detected | Audi, Buick, Cadillac, Chevrolet, Dodge, Ford, GMC, Honda, Hyundai, Lincoln, Mazda, Mercedes-Benz, Nissan, Oldsmobile, Saturn, Volkswagen |
| 18 | P0303 | Cylinder 3 Misfire Detected | BMW, Ford, GMC, Honda, Hyundai, Isuzu, Land Rover, Mazda, Nissan, Subaru, Volkswagen, Volvo |
| 13 | P0301 | Cylinder 1 Misfire Detected | Chevrolet, Dodge, Ford, Honda, Land Rover, Mazda, Mercedes-Benz, Nissan, Porsche, Volkswagen |
| 8 | P0171 | Fuel System Lean (Bank 1) | Chevrolet, Ford, GMC, Lincoln, Toyota |
| 7 | P0302 | Cylinder 2 Misfire Detected | Ford, Hyundai, Kia, Mazda, Subaru, Volkswagen |
| 7 | P0304 | Cylinder 4 Misfire Detected | Ford, Isuzu, Kia, Subaru, Volkswagen, Volvo |
| 6 | P0340 | Camshaft Position Sensor Circuit Malfunction | Dodge, Ford, Mazda, Mitsubishi, Toyota |
| 6 | P0341 | CMP Sensor Performance | Chevrolet, Dodge, Ford, Saturn, Volkswagen |
| 6 | P0401 | Insufficient EGR Flow Detected | Ford, Pontiac, Toyota |
| 5 | P0174 | Fuel System Lean (Bank 2) | Chevrolet, Ford, GMC, Lincoln |
| 5 | P0305 | Cylinder 5 Misfire Detected | Dodge, Ford, Isuzu, Land Rover |
| 4 | P0102 | MAF Sensor Circuit Low Frequency | Buick, Ford, Volkswagen |
| 4 | P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | Chevrolet, Ford, Nissan, Volkswagen |
| 4 | P0172 | Fuel System Rich (Bank 1) | Buick, Ford, Suzuki, Toyota |
| 4 | P0316 | Misfire Occurred In First 1,000 Revolutions | Ford, Lincoln |
| 4 | P0320 | No Crank Reference Signal To PCM | Dodge, Ford, Jeep |
| 4 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | BMW, Chevrolet, Honda, Mazda |
| 3 | B1352 | Ignition key-in circuit failure | Ford, Mazda |
| 3 | P0101 | MAF Sensor Performance | BMW, Chevrolet, Saab |
| 3 | P0284 | Cylinder 8 Balance System Malfunction | Ford |
| 3 | P0306 | Cylinder 6 Misfire Detected | Audi, Ford, Suzuki |
| 3 | P0410 | Secondary Air System Performance | Ford, Mercedes-Benz |
| 3 | P043E | EVAP System Reference Orifice Clog Up | Scion, Toyota |
| 3 | P043F | EVAP System Reference Orifice High Flow | Scion, Toyota |
| 3 | P0440 | General EVAP System Failure | Buick, Chevrolet, Toyota |
| 3 | P0442 | EVAP System Small Leak Detected | Ford, Mercedes-Benz, Volkswagen |
| 3 | P0455 | EVAP System Large Leak Detected | Chevrolet, Ford |
| 3 | P0700 | Automatic Transmission System Malfunction Detected | Chevrolet, Ford, Subaru |
| 3 | P0720 | Output Shaft Speed Sensor Circuit Malfunction | Dodge, Ford, Mazda |
| 3 | P1399 | Misfire any cylinder | Honda |
| 3 | P1599 | A/C Pressure Sensor Circuit Low Voltage | Cadillac, Saturn |
| 3 | P2106 | Electronic Throttle Control System - Forced Limited Power | Dodge, Ford |
| 3 | P2401 | EVAP Leak Detection Pump Control Circuit Low | Scion, Toyota |
| 3 | P2402 | EVAP Leak Detection Pump Control Circuit High | Scion, Toyota |
| 3 | P2419 | EVAP Switching Valve Control Circuit Low | Scion, Toyota |
| 2 | P0011 | Intake Camshaft Position System Performance | BMW, Volvo |
| 2 | P0012 | Camshaft Position 'A' Over-Retarded (Bank 1) | Ford, Toyota |
| 2 | P0018 | Crankshaft Position - Intake Camshaft Position Correlation (Bank 2) | Hyundai, Kia |
| 2 | P0022 | Camshaft Position 'A' Timing Over-Retarded (Bank 2) | Ford |
| 2 | P0113 | IAT Sensor Circuit High Voltage | Ford, Volkswagen |
| 2 | P0120 | TP Sensor 1 Signal Circuit Malfunction | Nissan, Toyota |
| 2 | P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage | Chevrolet, Saturn |
| 2 | P0133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response | Suzuki, Volvo |
| 2 | P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction | Chevrolet, Toyota |
| 2 | P0175 | Fuel System Rich (Bank 2) | Ford, Suzuki |
| 2 | P0325 | Knock Sensor Circuit Malfunction | Buick, Kia |
| 2 | P0403 | EGR Solenoid Control Circuit Malfunction | Chrysler, Ford |
| 2 | P0404 | EGR Open Position Performance | Ford, Jeep |
| 2 | P0411 | Secondary AIR System Incorrect Airflow Detected | Chevrolet, Volkswagen |
| 2 | P0441 | EVAP Purge System Performance | BMW, Chrysler |
| 2 | P0446 | EVAP Vent System Performance | Chevrolet, Saturn |
| 2 | P0470 | Exhaust Backpressure Sensor Circuit Malfunction | Ford |
| 2 | P0500 | Vehicle Speed Sensor Circuit Malfunction | Ford |
| 2 | P0722 | Output Speed Sensor Circuit Low Voltage | Ford, Mazda |
| 2 | P0725 | Engine Speed Sensor Circuit Malfunction | Infiniti, Subaru |
| 2 | P1125 | Accelerator Pedal Position System Malfunction | Chevrolet, Isuzu |
| 2 | P132B | Turbo boost control A performance | Ford |
| 2 | P1689 | Traction Control Delivered Torque Output Circuit Malfunction | Dodge |
| 2 | P2096 | Downstream Fuel System Lean - HO2S-12 (Bank 1 Sensor 2) | Cadillac, Dodge |
| 2 | P2146 | Injector Positive Voltage Relay Circuit Group 1 (Injectors 1 & 4) | Chevrolet, Dodge |
| 2 | P2196 | Heated Oxygen Sensor (Bank 1 Sensor 1) Stuck Rich | Ford |
| 2 | P2617 | Crankshaft Position Signal Output Circuit Malfunction | Ford |
| 2 | U0073 | Control Module Communication Bus Off | Chevrolet |
| 2 | U1041 | Loss of Electronic Brake Controller Communication | Ford, Mazda |
| 2 | U1123 | Scpinvalid for odometer | Ford, Mazda |
| 1 | B1000 | ECU Malfunction | Chevrolet |
| 1 | B1004 | loss of keep alive memory | Cadillac |
| 1 | B1302 | Acc. Delay Relay Coil Circuit Fault | Ford |
| 1 | B1323 | Door ajar lamp circuit | Ford |
| 1 | B2960 | Security system sensor data incorrect but valid | Oldsmobile |
| 1 | P0016 | Crankshaft/Camshaft Timing Misalignment | Dodge |
| 1 | P0021 | Camshaft Position 'A' Timing Over-Advanced / System Performance (Bank 2) | Subaru |
| 1 | P0024 | Exhaust Camshaft Position System Performance (Bank 2) | Nissan |
| 1 | P0031 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Low Voltage | Subaru |
| 1 | P0046 | Turbocharger Boost Control Circuit Performance | Chevrolet |
| 1 | P0068 | Throttle Body Airflow Performance | Cadillac |
| 1 | P0087 | Fuel Rail Pressure Too Low | Ford |
| 1 | P0088 | Fuel Rail Pressure Too High | Ford |
| 1 | P0108 | MAP Sensor Circuit High Voltage | Mazda |
| 1 | P0114 | Intake Air Temperature Sensor Circuit Erratic | BMW |
| 1 | P0122 | TP Sensor Circuit Low Voltage | Buick |
| 1 | P0128 | Engine Coolant Temperature Below Thermostat Regulating Temperature | Chevrolet |
| 1 | P0134 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Activity | Volkswagen |
| 1 | P0136 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Malfunction | Toyota |
| 1 | P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage | Saturn |
| 1 | P0139 | Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response | Volkswagen |
| 1 | P0148 | Fuel Delivery Error | Dodge |
| 1 | P0153 | Heated Oxygen Sensor (Bank 2 Sensor 1) Slow Response | Nissan |
| 1 | P0155 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction | Chevrolet |
| 1 | P0157 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage | Chevrolet |
| 1 | P0193 | Fuel Rail Pressure Sensor Circuit High Voltage | Dodge |
| 1 | P0203 | Fuel Injector 3 Control Circuit Malfunction | Dodge |
| 1 | P0205 | Fuel Injector 5 Control Circuit Malfunction | Dodge |
| 1 | P0214 | Cylinder I.D. CID circuit fault | Ford |
| 1 | P0221 | Throttle Position Sensor 2 Performance | Mercedes-Benz |
| 1 | P0231 | Fuel Pump Feedback Circuit Low Voltage | Ford |
| 1 | P0234 | Turbocharger Engine Overboost | Chevrolet |
| 1 | P0237 | Turbocharger Boost Sensor Circuit Low Voltage | Dodge |
| 1 | P0263 | Cylinder 1 Balance System Malfunction | Ford |
| 1 | P0269 | Cylinder 3 Balance System Malfunction | Ford |
| 1 | P0278 | Cylinder 6 Balance System Malfunction | Ford |
| 1 | P0299 | Turbocharger Engine Underboost | Ford |
| 1 | P0307 | Cylinder 7 Misfire Detected | Land Rover |
| 1 | P0335 | Crankshaft Position Sensor Circuit Malfunction | Dodge |
| 1 | P0339 | Crankshaft Position Sensor Signal Intermittent | GMC |
| 1 | P0344 | Camshaft Position Sensor Signal Intermittent | Dodge |
| 1 | P0345 | Camshaft Position Sensor 'A' Circuit Malfunction (Bank 2) | Ford |
| 1 | P0349 | Camshaft Position Sensor Circuit Intermittent (Bank 2) | Ford |
| 1 | P0351 | Ignition Coil 1 Control Circuit Malfunction | Ford |
| 1 | P0352 | Ignition Coil 2 Control Circuit Malfunction | Lincoln |
| 1 | P0356 | Ignition Coil 6 Control Circuit Malfunction | Ford |
| 1 | P0400 | EGR System Recirculation Flow | Nissan |
| 1 | P0431 | Warmup Catalyst Efficiency Low (Bank 2) | Kia |
| 1 | P0432 | Catalyst Efficiency Below Normal (Bank 2) | Mercedes-Benz |
| 1 | P0449 | EVAP Vent Solenoid Control Circuit Malfunction | Chevrolet |
| 1 | P0456 | EVAP System Very Small Leak Detected | BMW |
| 1 | P0457 | Loose Fuel Cap | Ford |
| 1 | P0472 | Exhaust Backpressure Sensor Circuit Low Input | Ford |
| 1 | P0476 | Exhaust Backpressure Regulator Malfunction (Self Test) | Ford |
| 1 | P0477 | Low Voltage On Engine Brake Driver | Dodge |
| 1 | P0487 | EGR Airflow Throttle Control Circuit 'A' Open | Ford |
| 1 | P0491 | Secondary AIR System Insufficient Flow Detected (Bank 1) | Ford |
| 1 | P0505 | Idle Control System Malfunction | Nissan |
| 1 | P0512 | Starter Request Circuit Malfunction | Saturn |
| 1 | P0560 | System Voltage Malfunction | Mercedes-Benz |
| 1 | P0562 | System Voltage Too Low | Ford |
| 1 | P0603 | Control Module Long Term Memory Reset | Ford |
| 1 | P0605 | Control Module Programming Read Only Memory | Ford |
| 1 | P0611 | Fuel Injector Control Module Performance | Ford |
| 1 | P061B | Internal Control Module Torque Calculation Performance | Ford |
| 1 | P0642 | Sensor Reference Voltage 1 Circuit Low | Volkswagen |
| 1 | P0670 | Glow Plug Control Module Control Circuit Malfunction | Volkswagen |
| 1 | P0705 | Transaxle Range Switch Circuit Malfunction | Buick |
| 1 | P0743 | Torque Converter Clutch Solenoid Circuit Malfunction | Hyundai |
| 1 | P0837 | 4WD MUX Switch Performance | Dodge |
| 1 | P1101 | Intake Airflow System Performance | Cadillac |
| 1 | P1116 | Engine Coolant Temperature Sensor Performance | Ford |
| 1 | P1117 | Engine Coolant Temperature Sensor Circuit Intermittent | Volkswagen |
| 1 | P1122 | TP Sensor Circuit Intermittent Low Voltage | Buick |
| 1 | P1128 | Closed Loop Fueling Not Achieved - Bank 1 | Dodge |
| 1 | P1129 | MAP Sensor Value Higher Than Expected | Dodge |
| 1 | P1130 | Air Fuel Ratio Sensor (Bank 1 Sensor 1) Circuit Malfunction | Toyota |
| 1 | P1137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Low Voltage In Power Enrichment | Volkswagen |
| 1 | P1163 | Heated Oxygen Sensor (Bank 2 Sensor 1) Lean Shift Monitoring (Bank 2) | Mercedes-Benz |
| 1 | P1164 | Heated Oxygen Sensor (Bank 2 Sensor 1) Rich Shift Monitoring (Bank 2) | Honda |
| 1 | P1174 | Fuel Trim Cylinder Balance | BMW |
| 1 | P1176 | Electronic Throttle System Motor No. 1 Open or Shorted | Volkswagen |
| 1 | P1235 | Fuel Pump Control Out-Of-Range | GMC |
| 1 | P1247 | Fuel Injector 8 Control Circuit Shorted | Ford |
| 1 | P1280 | Accelerator Pedal Position Sensor 2 Circuit Malfunction | Ford |
| 1 | P1295 | ETC System Malfunction - Power Management | Isuzu |
| 1 | P1296 | 5-Volt VREF Supply Not Present | Volkswagen |
| 1 | P1297 | No Change In MAP Signal From Start To Run Transition | Volkswagen |
| 1 | P1320 | Igniter 5 Circuit Malfunction | Nissan |
| 1 | P1335 | Crankshaft Position Sensor Circuit Malfunction | Ford |
| 1 | P1372 | PCM Segment Time Acquisition Incorrect | Audi |
| 1 | P1378 | FICM Supply Voltage Low Voltage | Ford |
| 1 | P1391 | CKP Or CMP Sensor Signal Intermittent | Dodge |
| 1 | P1425 | EVAP System Leak Detection Pump Flow High/Low | Volkswagen |
| 1 | P1435 | Charge/Discharge Balance Function | Volkswagen |
| 1 | P1456 | EVAP System Leak Detected (Fuel Tank Area) | Honda |
| 1 | P1479 | High Fan Control / Fan Control 3 Primary Circuit Malfunction | Volkswagen |
| 1 | P1502 | Vehicle Speed Sensor 1-2 Correlation - Non-Drive Wheels | Ford |
| 1 | P1506 | Idle Air Control System RPM Higher Than Expected | Ford |
| 1 | P1510 | PCM Backup Power Supply Circuit Malfunction | Saturn |
| 1 | P1516 | TAC Module Throttle Actuator Position Performance | Saturn |
| 1 | P1541 | Climate Control Unit Signal Circuit Low Voltage | Dodge |
| 1 | P1600 | TCM Internal Watchdog Operation | Hyundai |
| 1 | P1636 | TCM Internal - External Watchdog Performance | Land Rover |
| 1 | P1640 | Output Driver 1 Circuit Malfunction | Saturn |
| 1 | P1652 | Cooling Fan 2 Relay Control Circuit Malfunction | Dodge |
| 1 | P1687 | No Communication With MIC | Jeep |
| 1 | P2004 | Intake Manifold Runner Control Stuck Open | Volkswagen |
| 1 | P2050 | Misfiring damages twc | Mercedes-Benz |
| 1 | P2053 | Misfire 3 | Mercedes-Benz |
| 1 | P2098 | Downstream Fuel System Lean - HO2S-22 (Bank 2 Sensor 2) | Cadillac |
| 1 | P2105 | Throttle Actuator Control System - Forced Engine Shutdown | Ford |
| 1 | P2134 | Cylinder 2 Glow Plug Output Stage Excess Temperature | Chevrolet |
| 1 | P2175 | Low Airflow / Restriction Detected (Slow Accumulation) | Dodge |
| 1 | P2176 | Minimum Throttle Position Not Learned | Mercedes-Benz |
| 1 | P2177 | Fuel Trim System Lean At Cruise Or Acceleration (Bank 1) | Cadillac |
| 1 | P2197 | Air Fuel Ratio Sensor (Bank 2 Sensor 1) Signal Stuck "Lean" | Lexus |
| 1 | P2198 | Air Fuel Ratio Sensor (Bank 2 Sensor 1) Signal Stuck "Rich" | Ford |
| 1 | P2263 | Turbo/Super Charger System Performance | Ford |
| 1 | P2270 | Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Lean | Cadillac |
| 1 | P2284 | Injector Control Pressure Circuit Range/Performance | Ford |
| 1 | P2289 | Injector Control Pressure Too High - Engine Off | Ford |
| 1 | P2291 | Injector Control Pressure Too Low - Engine Cranking | Ford |
| 1 | P2302 | Ignition Coil 1 Secondary Circuit Insufficient Ionization | Dodge |
| 1 | P2305 | Ignition Coil 2 Secondary Circuit Insufficient Ionization | Dodge |
| 1 | P2308 | Ignition Coil 3 Secondary Circuit Insufficient Ionization | Dodge |
| 1 | P2311 | Ignition Coil 4 Secondary Circuit Insufficient Ionization | Dodge |
| 1 | P2314 | Ignition Coil 5 Secondary Circuit Insufficient Ionization | Dodge |
| 1 | P2317 | Ignition Coil 6 Secondary Circuit Insufficient Ionization | Dodge |
| 1 | P2422 | EVAP Canister Vent Shut Valve Close Malfunction | Honda |
| 1 | P2563 | Turbocharger Boost Control Position Sensor Performance | Chevrolet |
| 1 | P2614 | Camshaft Position Output Circuit Malfunction | Ford |
| 1 | P2734 | Unkown | Mercedes-Benz |
| 1 | P2A00 | Heated Oxygen Sensor (Bank 1 Sensor 1) Closed Loop Performance | Nissan |
| 1 | U0001 | CAN 'C' Bus | Chevrolet |
| 1 | U0100 | Lost Communication With ECM/PCM | Chevrolet |
| 1 | U0102 | lost communication with Transfer case control module | Chevrolet |
| 1 | U0140 | Lost Communication With BCM | Chevrolet |
| 1 | U0155 | No Cluster Bus Message | Chevrolet |
| 1 | U1000 | Class 2 Communication Malfunction | Chevrolet |
| 1 | U2105 | TCM - No Communication With Engine Control Module | Saturn |
