Diagnostic Trouble Code Index for January 2026
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 |
| 1 | P000A | Camshaft 1 Position Slow Response | Jeep |
| 1 | P0016 | Crankshaft/Camshaft Timing Misalignment | Kia |
| 1 | P0017 | Crankshaft Position - Exhaust Camshaft Position Correlation | Kia |
| 1 | P0299 | Turbocharger Engine Underboost | Chevrolet |
| 1 | P0300 | Multiple Cylinder Misfire Detected | Jeep |
| 1 | P0302 | Cylinder 2 Misfire Detected | Mazda |
| 1 | P0305 | Cylinder 5 Misfire Detected | Audi |
| 1 | P0340 | Camshaft Position Sensor Circuit Malfunction | Ford |
| 1 | P0341 | CMP Sensor Performance | Volkswagen |
| 1 | P0355 | Ignition Coil 5 Control Circuit Malfunction | Lincoln |
| 1 | P0416 | Secondary AIR System Switching Valve 'B' Circuit Malfunction | GMC |
| 1 | P0507 | Idle Speed High | Chevrolet |
| 1 | P0890 | Switched Battery | Chevrolet |
| 1 | P1389 | No Auto Shutdown Relay Output Voltage To PCM | Jeep |
| 1 | P2270 | Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Lean | Subaru |
| 1 | P228C | Fuel Pressure Regulator1Exceeds Control Limits | Chevrolet |
| 1 | U0100 | Lost Communication With ECM/PCM | GMC |
| 1 | U0422 | Implausible Data Received From BCM | GMC |
| 1 | U1400 | Implausible Throttle Position Sensor Signal Received | Volkswagen |
| 1 | U3501 | P30de- | Volkswagen |
