Diagnostic Trouble Code Index for April 2021
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 |
| 6 | P0300 | Multiple Cylinder Misfire Detected | Buick, Chevrolet, Dodge, Hyundai, Jeep, Nissan |
| 4 | P0301 | Cylinder 1 Misfire Detected | Honda, Jeep, Mini, Volkswagen |
| 4 | P0304 | Cylinder 4 Misfire Detected | Dodge, Hyundai, Mini, Volkswagen |
| 3 | P0171 | Fuel System Lean (Bank 1) | Ford, GMC |
| 3 | P0302 | Cylinder 2 Misfire Detected | Hyundai, Mini, Volkswagen |
| 3 | P0335 | Crankshaft Position Sensor Circuit Malfunction | Infiniti, Jeep, Mitsubishi |
| 2 | P0303 | Cylinder 3 Misfire Detected | Mini, Volkswagen |
| 2 | P0306 | Cylinder 6 Misfire Detected | Buick, Hyundai |
| 1 | C2100 | Battery voltage low | Dodge |
| 1 | C2202 | VIN mismatch | Dodge |
| 1 | C2206 | Vehicle Configuration Mismatch | Dodge |
| 1 | P0016 | Crankshaft/Camshaft Timing Misalignment | Chevrolet |
| 1 | P0075 | Intake Valve Timing Control Solenoid Valve Circuit Malfunction (Bank 1) | Nissan |
| 1 | P0087 | Fuel Rail Pressure Too Low | BMW |
| 1 | P0133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response | Saturn |
| 1 | P013A | Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response - Rich To Lean | GMC |
| 1 | P0151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage | Other GM |
| 1 | P0172 | Fuel System Rich (Bank 1) | Ford |
| 1 | P0188 | Fuel Rail Temperature Sensor Circuit High Voltage | Mercedes-Benz |
| 1 | P0201 | Fuel Injector 1 Control Circuit Malfunction | Chevrolet |
| 1 | P0203 | Fuel Injector 3 Control Circuit Malfunction | Chevrolet |
| 1 | P0205 | Fuel Injector 5 Control Circuit Malfunction | Chevrolet |
| 1 | P0208 | Fuel Injector 8 Control Circuit Malfunction | Chevrolet |
| 1 | P020A | cyl 1 injection timing intermittent | Ram |
| 1 | P020B | 2 injection timing | Ram |
| 1 | P020D | Cylinder 4 ignition timing | Ram |
| 1 | P020E | Throttle body current | Ram |
| 1 | P020F | Cyl. 6 performance | Ram |
| 1 | P0266 | Cylinder 2 Balance System Malfunction | Ford |
| 1 | P026B | Injection timing | Ram |
| 1 | P0315 | Crankshaft Position Sensor Variation Not Learned | Jeep |
| 1 | P0336 | Crankshaft Position Sensor Performance | Hyundai |
| 1 | P0340 | Camshaft Position Sensor Circuit Malfunction | Mitsubishi |
| 1 | P0349 | Camshaft Position Sensor Circuit Intermittent (Bank 2) | Dodge |
| 1 | P0562 | System Voltage Too Low | Chevrolet |
| 1 | P0597 | Thermostat Heater Control Circuit Malfunction | Mini |
| 1 | P0707 | Transmission Range Sensor Circuit Low | Ford |
| 1 | P0776 | Pressure Control Solenoid Valve 'B' Stuck Off | Toyota |
| 1 | P0845 | 2-4 Hydraulic Pressure Test Malfunction | Nissan |
| 1 | P1133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching | Saturn |
| 1 | P116C | 002D0F Mass air flow circuit range/performance | BMW |
| 1 | P1294 | Target Idle Speed Not Reached | Chevrolet |
| 1 | P130A | Cylinder Disabling | Volkswagen |
| 1 | P1401 | EGR Temperature Sensor Circuit Malfunction | Ford |
| 1 | P1507 | Idle Air Control System RPM Lower Than Expected | Ram |
| 1 | P1614 | NATS CHAIN OF IMMU-KEY | Nissan |
| 1 | P207F | Reductant Quality Performance | Mercedes-Benz |
| 1 | P2097 | Downstream Fuel System Rich - HO2S-12 (Bank 1 Sensor 2) | Chevrolet |
| 1 | P2099 | Downstream Fuel System Rich - HO2S-22 (Bank 2 Sensor 2) | Chevrolet |
| 1 | P2100 | Electronic Throttle Control Motor Circuit / Open (Bank 1) | Ford |
| 1 | P2106 | Electronic Throttle Control System - Forced Limited Power | Ford |
| 1 | P2107 | Electronic Throttle Control Module Processor | Ford |
| 1 | P2109 | TP Sensor Minimum Stop Range/Performance Problem | Ford |
| 1 | P2149 | Injector Positive Voltage Relay Circuit Group 2 (Injectors 6 & 7) | Chevrolet |
| 1 | P2172 | High Airflow / Vacuum Leak Detected (Instantaneous Accumulation) | Fiat |
| 1 | P2187 | Fuel Trim System Lean At Idle (Bank 1) | Land Rover |
| 1 | P2189 | Fuel Trim System Lean At Idle (Bank 2) | Land Rover |
| 1 | P219B | fuel trim cylinder balance bank 2 | Chevrolet |
| 1 | P2271 | Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich | GMC |
| 1 | P2301 | Ignition Coil 1 Control Circuit High Voltage | Chevrolet |
| 1 | P238D | Water in fuel senor B circuit high | Ram |
| 1 | P2509 | Power-Down Data Lost Error | Ram |
| 1 | P2802 | Transmission Range Sensor B Circuit Low | Ford |
| 1 | P4560 | EVAP Emission Control System Very small leak - Leak Detected | Audi |
| 1 | U0100 | Lost Communication With ECM/PCM | Dodge |
| 1 | U0101 | Lost Communication With TCM | Chevrolet |
| 1 | U010E | Lost communication with diesel exhaust fluid control unit | Ram |
| 1 | U0141 | Lost Communication With Front Control Module | Dodge |
| 1 | U0422 | Implausible Data Received From BCM | Ford |
| 1 | U1123 | Scp invalid for odometer | Volkswagen |
