Diagnostic Trouble Code Index for July 2023
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 | B2799 | Engine Immobilizer System Malfunction | Lexus, Toyota |
| 3 | P0300 | Multiple Cylinder Misfire Detected | Chevrolet, GMC, Lexus |
| 2 | P0172 | Fuel System Rich (Bank 1) | Chevrolet |
| 2 | P0332 | Knock Sensor Circuit Low Frequency (Bank 2) | Chevrolet |
| 1 | B1788 | Control module immobilizer deactivated | Volkswagen |
| 1 | P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage | GMC |
| 1 | P0152 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit High Voltage | GMC |
| 1 | P0175 | Fuel System Rich (Bank 2) | Chevrolet |
| 1 | P0219 | Engine Overspeed Condition | Chevrolet |
| 1 | P0302 | Cylinder 2 Misfire Detected | Lexus |
| 1 | P0304 | Cylinder 4 Misfire Detected | Lexus |
| 1 | P0306 | Cylinder 6 Misfire Detected | Dodge |
| 1 | P0308 | Cylinder 8 Misfire Detected | Lexus |
| 1 | P0327 | Knock Sensor Circuit Low Voltage (Bank 1) | Chevrolet |
| 1 | P0335 | Crankshaft Position Sensor Circuit Malfunction | Nissan |
| 1 | P0418 | Secondary Air System Pump Relay Control Circuit Malfunction (Bank 1) | Chevrolet |
| 1 | P0446 | EVAP Vent System Performance | Chevrolet |
| 1 | P0520 | Engine Oil Pressure Sensor Circuit Malfunction | Jeep |
| 1 | P0690 | Engine Controls Ignition Relay Feedback Circuit High Voltage | Chevrolet |
| 1 | P1015 | Ignition Coil 1 Output Stage Circuit Performance | Maserati |
| 1 | P130A | Cylinder disabling | Audi |
| 1 | P1351 | ICM Ignition Control Circuit High Voltage | Chevrolet |
| 1 | P3A50 | 15178 Cylinder 2 Pressure Too High | Audi |
| 1 | U0001 | CAN 'C' Bus | Jeep |
| 1 | U0002 | CAN 'C' Bus Off Performance | Jeep |
| 1 | U0121 | Lost Communication With Antilock Brake System Module | Jeep |
| 1 | U0140 | Lost Communication With BCM | Jeep |
