Diagnostic Trouble Code Index for May 2004
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 |
| 17 | P0300 | Multiple Cylinder Misfire Detected | Acura, Audi, Cadillac, Chevrolet, Dodge, Isuzu, Mercedes-Benz, Mitsubishi, Plymouth, Saturn, Suzuki, Toyota |
| 16 | P0171 | Fuel System Lean (Bank 1) | Dodge, Ford, Lexus, Mercedes-Benz, Nissan, Subaru, Toyota, Volkswagen |
| 9 | P0304 | Cylinder 4 Misfire Detected | Audi, Dodge, Ford, Honda, Mercedes-Benz, Toyota |
| 7 | P0174 | Fuel System Lean (Bank 2) | Ford, Nissan |
| 7 | P0301 | Cylinder 1 Misfire Detected | Audi, Geo, Mercedes-Benz, Pontiac, Subaru, Toyota |
| 6 | P0401 | Insufficient EGR Flow Detected | Acura, Buick, Dodge, Oldsmobile, Toyota |
| 5 | P0133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response | Acura, Dodge, Ford, Volvo |
| 5 | P0340 | Camshaft Position Sensor Circuit Malfunction | Dodge, Ford, Suzuki, Toyota |
| 4 | P0140 | Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity | Nissan, Pontiac, Saturn, Volvo |
| 4 | P0302 | Cylinder 2 Misfire Detected | Chrysler, Ford, Mercedes-Benz |
| 4 | P0306 | Cylinder 6 Misfire Detected | Buick, Dodge, Honda, Plymouth |
| 4 | P0455 | EVAP System Large Leak Detected | BMW, Dodge, Volkswagen, Volvo |
| 3 | P0121 | TP Sensor Performance | Jeep, Volkswagen, Volvo |
| 3 | P0122 | TP Sensor Circuit Low Voltage | Buick, Chevrolet |
| 3 | P0172 | Fuel System Rich (Bank 1) | Acura, Chevrolet, Ford |
| 3 | P0175 | Fuel System Rich (Bank 2) | BMW, Ford, Mercury |
| 3 | P0303 | Cylinder 3 Misfire Detected | Ford, Mercedes-Benz |
| 3 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | Ford, Jaguar |
| 3 | P0442 | EVAP System Small Leak Detected | Chrysler, Ford, Plymouth |
| 2 | P0107 | MAP Sensor Circuit Low Voltage | Buick, Chevrolet |
| 2 | P0132 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit High Voltage | Acura, Jeep |
| 2 | P0134 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Activity | Pontiac, Volvo |
| 2 | P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction | Subaru, Volvo |
| 2 | P0173 | Fuel Trim Lean Or Rich (Bank 2) | Mercedes-Benz |
| 2 | P0320 | No Crank Reference Signal To PCM | Ford, Volkswagen |
| 2 | P0325 | Knock Sensor Circuit Malfunction | Honda, Oldsmobile |
| 2 | P0335 | Crankshaft Position Sensor Circuit Malfunction | Hyundai, Toyota |
| 2 | P0336 | Crankshaft Position Sensor Performance | Chevrolet, Hyundai |
| 2 | P0341 | CMP Sensor Performance | Buick |
| 2 | P0351 | Ignition Coil 1 Control Circuit Malfunction | Dodge |
| 2 | P0400 | EGR System Recirculation Flow | Mazda, Mercedes-Benz |
| 2 | P0402 | Excessive EGR Flow Detected | Ford, Infiniti |
| 2 | P0411 | Secondary AIR System Incorrect Airflow Detected | Mercedes-Benz, Volkswagen |
| 2 | P0430 | Catalyst System Low Efficiency (Bank 2) | Ford, GMC |
| 2 | P0443 | EVAP Purge Solenoid Control Circuit Malfunction | Jeep, Lincoln |
| 2 | P0500 | Vehicle Speed Sensor Circuit Malfunction | Ford |
| 2 | P0502 | VSS Circuit Low Input | Chevrolet, Saab |
| 2 | P0706 | Transmission Range Switch Circuit Malfunction | Isuzu, Pontiac |
| 2 | P1131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Indicates A/F Ratio Too Lean | Ford |
| 2 | P1491 | EVAP Vacuum Cut Valve/Bypass Circuit Malfunction | Honda, Jeep |
| 2 | P1635 | 5-Volt Reference 1 Circuit Malfunction | Buick, Chevrolet |
| 1 | P0016 | Crankshaft/Camshaft Timing Misalignment | Dodge |
| 1 | P0101 | MAF Sensor Performance | Oldsmobile |
| 1 | P0102 | MAF Sensor Circuit Low Frequency | Buick |
| 1 | P0118 | ECT Sensor Circuit High Voltage | Audi |
| 1 | P0120 | TP Sensor 1 Signal Circuit Malfunction | Nissan |
| 1 | P0125 | Engine Coolant Temperature Insufficient For Closed Loop Fuel Control | Ford |
| 1 | P0136 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Malfunction | Toyota |
| 1 | P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage | Volvo |
| 1 | P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage | Chevrolet |
| 1 | P0153 | Heated Oxygen Sensor (Bank 2 Sensor 1) Slow Response | Ford |
| 1 | P0170 | Fuel Trim Lean Or Rich (Bank 1) | Mercedes-Benz |
| 1 | P0207 | Fuel Injector 7 Control Circuit Malfunction | Cadillac |
| 1 | P0232 | Fuel Pump Feedback Circuit High Voltage | Ford |
| 1 | P0236 | Turbocharger Boost System Performance | Chevrolet |
| 1 | P0305 | Cylinder 5 Misfire Detected | Honda |
| 1 | P0322 | Crankshaft Position Sensor Circuit No Signal | Cadillac |
| 1 | P0337 | CKP Sensor Circuit Low Duty Cycle | Isuzu |
| 1 | P0352 | Ignition Coil 2 Control Circuit Malfunction | Dodge |
| 1 | P0353 | Ignition Coil 3 Control Circuit Malfunction | Dodge |
| 1 | P0421 | Warmup Catalyst Efficiency Low (Bank 1) | Audi |
| 1 | P0441 | EVAP Purge System Performance | Toyota |
| 1 | P0446 | EVAP Vent System Performance | Buick |
| 1 | P0452 | Fuel Tank Pressure Sensor Circuit Low Voltage | Buick |
| 1 | P0460 | Fuel Level Sensing Unit No Change Over Miles | Ford |
| 1 | P0491 | Secondary AIR System Insufficient Flow Detected (Bank 1) | BMW |
| 1 | P0492 | Secondary air flow bank 2 | BMW |
| 1 | P0503 | VSS Circuit Intermittent | Ford |
| 1 | P0505 | Idle Control System Malfunction | Mitsubishi |
| 1 | P0551 | Power Steering Pressure Switch Circuit Malfunction | Dodge |
| 1 | P0601 | Control Module Read Only Memory | Chrysler |
| 1 | P0645 | A/C Clutch Relay Circuit Malfunction | Jeep |
| 1 | P0650 | Malfunction Indicator Lamp Circuit Malfunction | Pontiac |
| 1 | P0748 | Pressure Control Solenoid Circuit Malfunction | Hyundai |
| 1 | P0753 | 1-2 Shift Solenoid Circuit Malfunction | Chevrolet |
| 1 | P0758 | 2-3 Shift Solenoid Circuit Malfunction | Chevrolet |
| 1 | P1041 | security codeSorry codes were cleared before wrote down. | Chevrolet |
| 1 | P1107 | MAP Sensor Circuit Intermittent Low Voltage | Buick |
| 1 | P1122 | TP Sensor Circuit Intermittent Low Voltage | Buick |
| 1 | P1132 | Heated Oxygen Sensor (Bank 1 Sensor 1) Indicates A/F Ratio Too Rich | Volvo |
| 1 | P1137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Low Voltage In Power Enrichment | Ford |
| 1 | P1151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Indicates A/F Ratio Too Lean | Ford |
| 1 | P1171 | Fuel System Lean During Acceleration | Isuzu |
| 1 | P1204 | Cylinder 4 Misfire Detected | Acura |
| 1 | P1205 | Cylinder 5 Misfire Detected | Acura |
| 1 | P1206 | Cylinder 6 Misfire Detected | Acura |
| 1 | P1211 | ABS/TCS Control Unit Malfunction | Ford |
| 1 | P1218 | Injection Pump Calibration Circuit Malfunction | Ford |
| 1 | P1250 | Pressure Regulator Control Solenoid Circuit Malfunction | BMW |
| 1 | P1259 | VTEC System Malfunction (Bank 1) | Honda |
| 1 | P1260 | Immobilizer System Malfunction | Ford |
| 1 | P1309 | Misfire Detection Monitor | Ford |
| 1 | P1320 | Igniter 5 Circuit Malfunction | Cadillac |
| 1 | P1345 | Camshaft To Crankshaft Position Correlation | Chevrolet |
| 1 | P1351 | ICM Ignition Control Circuit High Voltage | Ford |
| 1 | P1352 | Ignition Bypass Circuit High Voltage | Pontiac |
| 1 | P1358 | IDM Signals Out Of Self-Test Range | Ford |
| 1 | P1361 | ICM Ignition Control Circuit Low Voltage | Honda |
| 1 | P1399 | Misfire any cylinder | Honda |
| 1 | P1400 | Cold Start Emission Reduction Control System | Mitsubishi |
| 1 | P1401 | EGR Temperature Sensor Circuit Malfunction | Ford |
| 1 | P1406 | EGR Valve Pintle Position Circuit Malfunction | Chevrolet |
| 1 | P1408 | EGR Flow Out Of Self-Test Range | Ford |
| 1 | P1411 | Cylinder 1 Reactivation Control Performance | Audi |
| 1 | P1423 | Fuel Tank Large Leak | Audi |
| 1 | P1447 | EVAP Control System Purge Flow Malfunction | Land Rover |
| 1 | P1476 | High Fan Relay Control Circuit Malfunction | Volkswagen |
| 1 | P1494 | EVAP Leak Detection Pump Switch Or Mechanical Fault | Plymouth |
| 1 | P1495 | Leak Detection Pump Solenoid Circuit Malfunction | Dodge |
| 1 | P1506 | Idle Air Control System RPM Higher Than Expected | Ford |
| 1 | P1516 | TAC Module Throttle Actuator Position Performance | Ford |
| 1 | P1519 | Idle Air Control Valve Circuit Malfunction | Ford |
| 1 | P1524 | Brake Booster Pressure Sensor Range/Performance | Cadillac |
| 1 | P1544 | Exhaust Gas Temperature Too High | Volkswagen |
| 1 | P1568 | Battery Cell Temperature Signal Circuit Problem | Pontiac |
| 1 | P1599 | A/C Pressure Sensor Circuit Low Voltage | Pontiac |
| 1 | P1609 | Knock Sensor Integrated Circuit Malfunction | Volvo |
| 1 | P1626 | Theft Deterrent Fuel Enable Signal Lost | Chevrolet |
| 1 | P1631 | Theft Deterrent Fuel Enable Signal Not Correct | Chevrolet |
| 1 | P1637 | Generator 'L' Terminal Circuit Malfunction | Pontiac |
| 1 | P1652 | Cooling Fan 2 Relay Control Circuit Malfunction | Volvo |
| 1 | P1653 | EGR Vent Solenoid Control Circuit Malfunction | Pontiac |
| 1 | P1673 | Engine Hot Lamp Control Circuit Malfunction | Pontiac |
| 1 | P1705 | Throttle Position Sensor Circuit Malfunction | Nissan |
| 1 | P1780 | Park/Neutral Position Switch Circuit Malfunction | Ford |
| 1 | P1870 | Transmission Component Slipping | Chevrolet |
| 1 | P300B | random misfire | Chevrolet |
| 1 | U1016 | Serial Communications Malfunction | Chevrolet |
