Diagnostic Trouble Code Index for November 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 |
| 4 | P0171 | Fuel System Lean (Bank 1) | Chevrolet, Toyota |
| 4 | P0300 | Multiple Cylinder Misfire Detected | Audi, Chevrolet, Mercedes-Benz, Pontiac |
| 3 | P0172 | Fuel System Rich (Bank 1) | Chevrolet, Ford |
| 3 | P0174 | Fuel System Lean (Bank 2) | Chevrolet, Toyota |
| 3 | P0304 | Cylinder 4 Misfire Detected | Audi, Ram, Subaru |
| 2 | P0175 | Fuel System Rich (Bank 2) | Chevrolet, Ford |
| 2 | P0301 | Cylinder 1 Misfire Detected | Mercedes-Benz, Subaru |
| 2 | P0303 | Cylinder 3 Misfire Detected | Ram, Subaru |
| 2 | P0305 | Cylinder 5 Misfire Detected | Audi, Honda |
| 2 | P0306 | Cylinder 6 Misfire Detected | Audi, Mercedes-Benz |
| 1 | B1102 | Battery Voltage low | Hyundai |
| 1 | C1121 | Tpms fault | Hyundai |
| 1 | C1133 | Engine 4 Fuel Cut System Fault | Other Asian |
| 1 | C1143 | Steering Angle Sensor Circuit Fault | Other Asian |
| 1 | C1163 | Steering Angle Sensor Circuit Fault | Other Asian |
| 1 | C1611 | CAN Timeout EMS | Hyundai |
| 1 | C2800 | Brake pressure transducer circuit | Ford |
| 1 | P0011 | Intake Camshaft Position System Performance | Chevrolet |
| 1 | P0014 | Exhaust Camshaft Position System Performance | Chevrolet |
| 1 | P0022 | Camshaft Position 'A' Timing Over-Retarded (Bank 2) | Ford |
| 1 | P0073 | Ambient Air Temperature Sensor Circuit High Voltage | Ford |
| 1 | P0120 | TP Sensor 1 Signal Circuit Malfunction | Volvo |
| 1 | P0126 | Insufficient Coolant Temperature For Stable Operation | Volvo |
| 1 | P0201 | Fuel Injector 1 Control Circuit Malfunction | Mercedes-Benz |
| 1 | P0206 | Fuel Injector 6 Control Circuit Malfunction | Mercedes-Benz |
| 1 | P0302 | Cylinder 2 Misfire Detected | Subaru |
| 1 | P0336 | Crankshaft Position Sensor Performance | Ford |
| 1 | P0344 | Camshaft Position Sensor Signal Intermittent | Jeep |
| 1 | P0401 | Insufficient EGR Flow Detected | Ford |
| 1 | P0463 | Fuel Level Sensor High Voltage | Dodge |
| 1 | P0522 | Engine Oil Pressure Sensor Circuit Low Voltage | Dodge |
| 1 | P0528 | Fan Speed Sensor Circuit - No Signal | Ford |
| 1 | P0541 | Low Voltage At Intake Air Heater Relay 1 | Dodge |
| 1 | P0601 | Control Module Read Only Memory | Chevrolet |
| 1 | P0627 | Fuel Pump Relay Control Circuit Malfunction | Chevrolet |
| 1 | P0740 | TCC Solenoid Circuit Malfunction | Ford |
| 1 | P0743 | Torque Converter Clutch Solenoid Circuit Malfunction | Ford |
| 1 | P1083 | Air mass ahead of throttle valve upper load range | Porsche |
| 1 | P1094 | Fuel Rail Pressure Low During Idle Or Decel Fuel Cutoff | Porsche |
| 1 | P1233 | Fuel System Disabled Or Offline | Ford |
| 1 | P1237 | Fuel Pump Secondary Circuit Malfunction | Ford |
| 1 | P1309 | Misfire Detection Monitor | Ford |
| 1 | P151B | Rpm lower than expected | Volvo |
| 1 | P1622 | Key Identification Number Does Not Match In The PCM | Land Rover |
| 1 | P1831 | Pressure Control Shift Lock Solenoid Control Circuit Low Voltage | Other Asian |
| 1 | P1832 | Pressure Control Shift Lock Solenoid Control Circuit High Voltage | Other Asian |
| 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 | P3000 | HV Battery Malfunction | Volvo |
| 1 | P3040 | Combustion Misfire of Cylinder 4 | Mercedes-Benz |
| 1 | P3406 | intake camshaft adjuster | Mercedes-Benz |
| 1 | U0101 | Lost Communication With TCM | Dodge |
| 1 | U0109 | lost communication with fp control module | Chevrolet |
