Diagnostic Trouble Code Index for March 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 |
| 3 | P0171 | Fuel System Lean (Bank 1) | Chevrolet, GMC |
| 3 | P0302 | Cylinder 2 Misfire Detected | Alfa Romeo, Ford, Toyota |
| 2 | P0174 | Fuel System Lean (Bank 2) | Chevrolet |
| 2 | P0300 | Multiple Cylinder Misfire Detected | Alfa Romeo, Lexus |
| 1 | P000A | Camshaft 1 Position Slow Response | Kia |
| 1 | P000B | Camshaft 2 Position Slow Response | Kia |
| 1 | P0014 | Exhaust Camshaft Position System Performance | Kia |
| 1 | P0053 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Resistance | Ford |
| 1 | P0054 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Resistance | Ford |
| 1 | P0059 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Resistance | Ford |
| 1 | P0060 | Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Resistance | Ford |
| 1 | P006B | MAP-Exhaust pressure correlation | Ford |
| 1 | P0087 | Fuel Rail Pressure Too Low | Ford |
| 1 | P0172 | Fuel System Rich (Bank 1) | BMW |
| 1 | P0175 | Fuel System Rich (Bank 2) | BMW |
| 1 | P0301 | Cylinder 1 Misfire Detected | Toyota |
| 1 | P0303 | Cylinder 3 Misfire Detected | Ford |
| 1 | P0305 | Cylinder 5 Misfire Detected | Alfa Romeo |
| 1 | P0306 | Cylinder 6 Misfire Detected | Alfa Romeo |
| 1 | P0401 | Insufficient EGR Flow Detected | Cadillac |
| 1 | P0443 | EVAP Purge Solenoid Control Circuit Malfunction | Ford |
| 1 | P0670 | Glow Plug Control Module Control Circuit Malfunction | Ford |
| 1 | P0741 | TCC System - Stuck Off | Cadillac |
| 1 | P1260 | Immobilizer System Malfunction | Ford |
| 1 | P215A | Vss wss correlation | Ford |
| 1 | P2195 | Air Fuel Sensor (Bank 1 Sensor 1) Signal Stuck Lean | Ford |
| 1 | P2267 | Water in Fuel Sensor Circuit High Voltage | Ram |
| 1 | P2291 | Injector Control Pressure Too Low - Engine Cranking | Ford |
| 1 | U029D | Nox module a lost comm | Ram |
