Diagnostic Trouble Code Index for December 2024
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 | Chevrolet, Ford, GMC, Jeep |
| 2 | P0172 | Fuel System Rich (Bank 1) | Chevrolet |
| 2 | P0175 | Fuel System Rich (Bank 2) | Chevrolet |
| 1 | P0053 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Resistance | Ford |
| 1 | P0104 | Mass Airflow Sensor Circuit Intermittent | Ford |
| 1 | P0123 | TP Sensor Circuit High Voltage | Mitsubishi |
| 1 | P0132 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit High Voltage | Ford |
| 1 | P0171 | Fuel System Lean (Bank 1) | Ford |
| 1 | P0223 | Throttle Position Sensor 2 Circuit High Voltage | Mitsubishi |
| 1 | P0301 | Cylinder 1 Misfire Detected | BMW |
| 1 | P0305 | Cylinder 5 Misfire Detected | BMW |
| 1 | P0335 | Crankshaft Position Sensor Circuit Malfunction | Mitsubishi |
| 1 | P0345 | Camshaft Position Sensor 'A' Circuit Malfunction (Bank 2) | Chrysler |
| 1 | P0365 | Exhaust Camshaft Position Sensor Circuit Malfunction | Chrysler |
| 1 | P0401 | Insufficient EGR Flow Detected | Ford |
| 1 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | Chevrolet |
| 1 | P2138 | Accelerator Pedal Position Sensor 1-2 Correlation Error | Mitsubishi |
| 1 | P2198 | Air Fuel Ratio Sensor (Bank 2 Sensor 1) Signal Stuck "Rich" | Ford |
| 1 | P4430 | Evap system purge flow control valve a performance | Lincoln |
| 1 | U0100 | Lost Communication With ECM/PCM | Ford |
| 1 | U0109 | lost communication with fp control module | Ford |
| 1 | U0121 | Lost Communication With Antilock Brake System Module | Ford |
| 1 | U0155 | No Cluster Bus Message | Ford |
| 1 | U0197 | Missing comm w/telephone mod | Ford |
| 1 | U110A | Lost Communication With SCM | Jeep |
| 1 | U1400 | Implausible Throttle Position Sensor Signal Received | Jeep |
| 1 | U1442 | Jeep | |
| 1 | U1702 | Jeep | |
| 1 | U2003 | spi data-in high | Jeep |
| 1 | U2004 | spi data-out low | Jeep |
